BEGIN:VCALENDAR VERSION:2.0 PRODID:-//ChatGPT//Sandhills 50K Training 2026-2027//EN CALSCALE:GREGORIAN METHOD:PUBLISH X-WR-CALNAME:Sandhills 50K Training X-WR-TIMEZONE:America/New_York BEGIN:VEVENT UID:sandhills50k-2026-20261014@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261014 DTEND;VALUE=DATE:20261015 SUMMARY:Easy walk - 3 mi DESCRIPTION:Week 1 of 19. Walk 3 miles at a comfortable easy pace. Finish with 10 minutes of gentle mobility. This replaces the originally schedu led run.\nEffort-based 50K completion plan: keep easy days conversationa l\; use run-walk intervals as needed. Do not make up missed mileage.\nLo ng sessions over 75-90 minutes: practice fueling and hydration.\nDaily C hatGPT briefing may reflect later changes\; calendar does not automatica lly sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261015@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261015 DTEND;VALUE=DATE:20261016 SUMMARY:Easy run - 2-3 mi DESCRIPTION:Week 1 of 19. Run 2-3 miles at conversational effort\, approx imately 11:30-13:00/mi if comfortable. Walk breaks welcome. Shorten or r est if unusually sore or fatigued.\nEffort-based 50K completion plan: ke ep easy days conversational\; use run-walk intervals as needed. Do not m ake up missed mileage.\nLong sessions over 75-90 minutes: practice fueli ng and hydration.\nDaily ChatGPT briefing may reflect later changes\; ca lendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261016@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261016 DTEND;VALUE=DATE:20261017 SUMMARY:Rest DESCRIPTION:Week 1 of 19. Hydrate\, eat normally\, prioritize sleep.\nEff ort-based 50K completion plan: keep easy days conversational\; use run-w alk intervals as needed. Do not make up missed mileage.\nLong sessions o ver 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefi ng may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261017@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261017 DTEND;VALUE=DATE:20261018 SUMMARY:Easy time on feet - 4 mi DESCRIPTION:Week 1 of 19. Walk or easy run/walk\, up to 4 mi only if reco vered.\nEffort-based 50K completion plan: keep easy days conversational\ ; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fueling and hydration.\nDaily Cha tGPT briefing may reflect later changes\; calendar does not automaticall y sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261018@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261018 DTEND;VALUE=DATE:20261019 SUMMARY:Recovery walk DESCRIPTION:Week 1 of 19. 20–40 min easy walk or rest.\nEffort-based 50 K completion plan: keep easy days conversational\; use run-walk interval s as needed. Do not make up missed mileage.\nLong sessions over 75-90 mi nutes: practice fueling and hydration.\nDaily ChatGPT briefing may refle ct later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261019@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261019 DTEND;VALUE=DATE:20261020 SUMMARY:Rest + mobility DESCRIPTION:Week 2 of 19. 10 min morning mobility.\nEffort-based 50K comp letion plan: keep easy days conversational\; use run-walk intervals as n eeded. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may reflect lat er changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261020@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261020 DTEND;VALUE=DATE:20261021 SUMMARY:Easy run - 3 mi DESCRIPTION:Week 2 of 19. 3 mi conversational effort.\nEffort-based 50K c ompletion plan: keep easy days conversational\; use run-walk intervals a s needed. Do not make up missed mileage.\nLong sessions over 75-90 minut es: practice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261021@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261021 DTEND;VALUE=DATE:20261022 SUMMARY:Strength + walk DESCRIPTION:Week 2 of 19. 20–30 min light strength\; optional 20 min wa lk.\nEffort-based 50K completion plan: keep easy days conversational\; u se run-walk intervals as needed. Do not make up missed mileage.\nLong se ssions over 75-90 minutes: practice fueling and hydration.\nDaily ChatGP T briefing may reflect later changes\; calendar does not automatically s ync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261022@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261022 DTEND;VALUE=DATE:20261023 SUMMARY:Easy run - 3 mi DESCRIPTION:Week 2 of 19. 3 mi relaxed\; no speedwork.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minu tes: practice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261023@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261023 DTEND;VALUE=DATE:20261024 SUMMARY:Rest DESCRIPTION:Week 2 of 19. Prepare for weekend\; sleep and hydrate.\nEffor t-based 50K completion plan: keep easy days conversational\; use run-wal k intervals as needed. Do not make up missed mileage.\nLong sessions ove r 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with i t. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261024@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261024 DTEND;VALUE=DATE:20261025 SUMMARY:Long easy run/walk - 4 mi DESCRIPTION:Week 2 of 19. 4 mi\; practice relaxed run-walk.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk inter vals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may re flect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261025@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261025 DTEND;VALUE=DATE:20261026 SUMMARY:Recovery run/walk - 2–3 mi DESCRIPTION:Week 2 of 19. 2–3 mi very easy or brisk walk.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk inter vals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may re flect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261026@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261026 DTEND;VALUE=DATE:20261027 SUMMARY:Rest + mobility DESCRIPTION:Week 3 of 19. 10 min mobility.\nEffort-based 50K completion p lan: keep easy days conversational\; use run-walk intervals as needed. D o not make up missed mileage.\nLong sessions over 75-90 minutes: practic e fueling and hydration.\nDaily ChatGPT briefing may reflect later chang es\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261027@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261027 DTEND;VALUE=DATE:20261028 SUMMARY:Easy run - 4 mi DESCRIPTION:Week 3 of 19. 4 mi conversational.\nEffort-based 50K completi on plan: keep easy days conversational\; use run-walk intervals as neede d. Do not make up missed mileage.\nLong sessions over 75-90 minutes: pra ctice fueling and hydration.\nDaily ChatGPT briefing may reflect later c hanges\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261028@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261028 DTEND;VALUE=DATE:20261029 SUMMARY:Strength DESCRIPTION:Week 3 of 19. 30 min\; squats\, hip hinge\, step-ups\, calf r aises\, planks.\nEffort-based 50K completion plan: keep easy days conver sational\; use run-walk intervals as needed. Do not make up missed milea ge.\nLong sessions over 75-90 minutes: practice fueling and hydration.\n Daily ChatGPT briefing may reflect later changes\; calendar does not aut omatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261029@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261029 DTEND;VALUE=DATE:20261030 SUMMARY:Easy run - 4 mi DESCRIPTION:Week 3 of 19. 4 mi relaxed.\nEffort-based 50K completion plan : keep easy days conversational\; use run-walk intervals as needed. Do n ot make up missed mileage.\nLong sessions over 75-90 minutes: practice f ueling and hydration.\nDaily ChatGPT briefing may reflect later changes\ ; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261030@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261030 DTEND;VALUE=DATE:20261031 SUMMARY:Rest DESCRIPTION:Week 3 of 19. No running.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fue ling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261031@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261031 DTEND;VALUE=DATE:20261101 SUMMARY:Long easy run/walk - 6 mi DESCRIPTION:Week 3 of 19. 6 mi\; use run-walk from the start.\nEffort-bas ed 50K completion plan: keep easy days conversational\; use run-walk int ervals as needed. Do not make up missed mileage.\nLong sessions over 75- 90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261101@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261101 DTEND;VALUE=DATE:20261102 SUMMARY:Recovery run/walk - 2–3 mi DESCRIPTION:Week 3 of 19. 2–3 mi very easy.\nEffort-based 50K completio n plan: keep easy days conversational\; use run-walk intervals as needed . Do not make up missed mileage.\nLong sessions over 75-90 minutes: prac tice fueling and hydration.\nDaily ChatGPT briefing may reflect later ch anges\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261102@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261102 DTEND;VALUE=DATE:20261103 SUMMARY:Rest + mobility DESCRIPTION:Week 4 of 19. 10 min mobility.\nEffort-based 50K completion p lan: keep easy days conversational\; use run-walk intervals as needed. D o not make up missed mileage.\nLong sessions over 75-90 minutes: practic e fueling and hydration.\nDaily ChatGPT briefing may reflect later chang es\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261103@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261103 DTEND;VALUE=DATE:20261104 SUMMARY:Easy run - 4 mi DESCRIPTION:Week 4 of 19. 4 mi conversational.\nEffort-based 50K completi on plan: keep easy days conversational\; use run-walk intervals as neede d. Do not make up missed mileage.\nLong sessions over 75-90 minutes: pra ctice fueling and hydration.\nDaily ChatGPT briefing may reflect later c hanges\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261104@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261104 DTEND;VALUE=DATE:20261105 SUMMARY:Strength + walk DESCRIPTION:Week 4 of 19. 30 min strength\; optional easy walk.\nEffort-b ased 50K completion plan: keep easy days conversational\; use run-walk i ntervals as needed. Do not make up missed mileage.\nLong sessions over 7 5-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing ma y reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261105@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261105 DTEND;VALUE=DATE:20261106 SUMMARY:Steady aerobic run - 5 mi DESCRIPTION:Week 4 of 19. 5 mi total\; include 15 min controlled steady e ffort\, not hard.\nEffort-based 50K completion plan: keep easy days conv ersational\; use run-walk intervals as needed. Do not make up missed mil eage.\nLong sessions over 75-90 minutes: practice fueling and hydration. \nDaily ChatGPT briefing may reflect later changes\; calendar does not a utomatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261106@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261106 DTEND;VALUE=DATE:20261107 SUMMARY:Rest DESCRIPTION:Week 4 of 19. No running.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fue ling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261107@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261107 DTEND;VALUE=DATE:20261108 SUMMARY:Long easy run/walk - 8 mi DESCRIPTION:Week 4 of 19. 8 mi comfortable\; practice drinking.\nEffort-b ased 50K completion plan: keep easy days conversational\; use run-walk i ntervals as needed. Do not make up missed mileage.\nLong sessions over 7 5-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing ma y reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261108@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261108 DTEND;VALUE=DATE:20261109 SUMMARY:Recovery run/walk - 2–3 mi DESCRIPTION:Week 4 of 19. 2–3 mi very easy.\nEffort-based 50K completio n plan: keep easy days conversational\; use run-walk intervals as needed . Do not make up missed mileage.\nLong sessions over 75-90 minutes: prac tice fueling and hydration.\nDaily ChatGPT briefing may reflect later ch anges\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261109@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261109 DTEND;VALUE=DATE:20261110 SUMMARY:Rest + mobility DESCRIPTION:Week 5 of 19. 10 min mobility.\nEffort-based 50K completion p lan: keep easy days conversational\; use run-walk intervals as needed. D o not make up missed mileage.\nLong sessions over 75-90 minutes: practic e fueling and hydration.\nDaily ChatGPT briefing may reflect later chang es\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261110@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261110 DTEND;VALUE=DATE:20261111 SUMMARY:Easy run - 3–4 mi DESCRIPTION:Week 5 of 19. 3–4 mi relaxed.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practi ce fueling and hydration.\nDaily ChatGPT briefing may reflect later chan ges\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261111@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261111 DTEND;VALUE=DATE:20261112 SUMMARY:Strength DESCRIPTION:Week 5 of 19. 20–30 min moderate\; avoid soreness.\nEffort- based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing m ay reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261112@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261112 DTEND;VALUE=DATE:20261113 SUMMARY:Easy run - 4 mi DESCRIPTION:Week 5 of 19. 4 mi conversational.\nEffort-based 50K completi on plan: keep easy days conversational\; use run-walk intervals as neede d. Do not make up missed mileage.\nLong sessions over 75-90 minutes: pra ctice fueling and hydration.\nDaily ChatGPT briefing may reflect later c hanges\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261113@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261113 DTEND;VALUE=DATE:20261114 SUMMARY:Rest DESCRIPTION:Week 5 of 19. No running.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fue ling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261114@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261114 DTEND;VALUE=DATE:20261115 SUMMARY:Long easy run/walk - 6 mi DESCRIPTION:Week 5 of 19. 6 mi easy.\nEffort-based 50K completion plan: k eep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fuel ing and hydration.\nDaily ChatGPT briefing may reflect later changes\; c alendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261115@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261115 DTEND;VALUE=DATE:20261116 SUMMARY:Recovery run/walk - 2–3 mi DESCRIPTION:Week 5 of 19. 2–3 mi very easy or walk.\nEffort-based 50K c ompletion plan: keep easy days conversational\; use run-walk intervals a s needed. Do not make up missed mileage.\nLong sessions over 75-90 minut es: practice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261116@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261116 DTEND;VALUE=DATE:20261117 SUMMARY:Rest + mobility DESCRIPTION:Week 6 of 19. 10 min mobility.\nEffort-based 50K completion p lan: keep easy days conversational\; use run-walk intervals as needed. D o not make up missed mileage.\nLong sessions over 75-90 minutes: practic e fueling and hydration.\nDaily ChatGPT briefing may reflect later chang es\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261117@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261117 DTEND;VALUE=DATE:20261118 SUMMARY:Easy run - 5 mi DESCRIPTION:Week 6 of 19. 5 mi conversational.\nEffort-based 50K completi on plan: keep easy days conversational\; use run-walk intervals as neede d. Do not make up missed mileage.\nLong sessions over 75-90 minutes: pra ctice fueling and hydration.\nDaily ChatGPT briefing may reflect later c hanges\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261118@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261118 DTEND;VALUE=DATE:20261119 SUMMARY:Strength + walk DESCRIPTION:Week 6 of 19. 30 min strength\; optional easy walk.\nEffort-b ased 50K completion plan: keep easy days conversational\; use run-walk i ntervals as needed. Do not make up missed mileage.\nLong sessions over 7 5-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing ma y reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261119@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261119 DTEND;VALUE=DATE:20261120 SUMMARY:Steady aerobic run - 5 mi DESCRIPTION:Week 6 of 19. 5 mi total\; 15–20 min steady\, controlled.\n Effort-based 50K completion plan: keep easy days conversational\; use ru n-walk intervals as needed. Do not make up missed mileage.\nLong session s over 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT bri efing may reflect later changes\; calendar does not automatically sync w ith it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261120@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261120 DTEND;VALUE=DATE:20261121 SUMMARY:Rest DESCRIPTION:Week 6 of 19. No running.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fue ling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261121@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261121 DTEND;VALUE=DATE:20261122 SUMMARY:Long easy run/walk - 10 mi DESCRIPTION:Week 6 of 19. 10 mi\; fuel if >90 min.\nEffort-based 50K comp letion plan: keep easy days conversational\; use run-walk intervals as n eeded. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may reflect lat er changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261122@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261122 DTEND;VALUE=DATE:20261123 SUMMARY:Recovery run/walk - 3–4 mi DESCRIPTION:Week 6 of 19. 3–4 mi very easy.\nEffort-based 50K completio n plan: keep easy days conversational\; use run-walk intervals as needed . Do not make up missed mileage.\nLong sessions over 75-90 minutes: prac tice fueling and hydration.\nDaily ChatGPT briefing may reflect later ch anges\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261123@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261123 DTEND;VALUE=DATE:20261124 SUMMARY:Rest + mobility DESCRIPTION:Week 7 of 19. 10 min mobility.\nEffort-based 50K completion p lan: keep easy days conversational\; use run-walk intervals as needed. D o not make up missed mileage.\nLong sessions over 75-90 minutes: practic e fueling and hydration.\nDaily ChatGPT briefing may reflect later chang es\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261124@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261124 DTEND;VALUE=DATE:20261125 SUMMARY:Easy run - 5 mi DESCRIPTION:Week 7 of 19. 5 mi easy.\nEffort-based 50K completion plan: k eep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fuel ing and hydration.\nDaily ChatGPT briefing may reflect later changes\; c alendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261125@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261125 DTEND;VALUE=DATE:20261126 SUMMARY:Strength DESCRIPTION:Week 7 of 19. 25–30 min\; moderate load.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minu tes: practice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261126@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261126 DTEND;VALUE=DATE:20261127 SUMMARY:Easy trail or rolling route - 5–6 mi DESCRIPTION:Week 7 of 19. 5–6 mi controlled\; hike steep hills.\nEffort -based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it . TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261127@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261127 DTEND;VALUE=DATE:20261128 SUMMARY:Rest DESCRIPTION:Week 7 of 19. No running.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fue ling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261128@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261128 DTEND;VALUE=DATE:20261129 SUMMARY:Long easy run/walk - 12 mi DESCRIPTION:Week 7 of 19. 12 mi\; test race shoes\, socks\, pack and fuel ing.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong s essions over 75-90 minutes: practice fueling and hydration.\nDaily ChatG PT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261129@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261129 DTEND;VALUE=DATE:20261130 SUMMARY:Recovery run/walk - 3–4 mi DESCRIPTION:Week 7 of 19. 3–4 mi easy\; shorten if fatigued.\nEffort-ba sed 50K completion plan: keep easy days conversational\; use run-walk in tervals as needed. Do not make up missed mileage.\nLong sessions over 75 -90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261130@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261130 DTEND;VALUE=DATE:20261201 SUMMARY:Rest + mobility DESCRIPTION:Week 8 of 19. 10 min mobility.\nEffort-based 50K completion p lan: keep easy days conversational\; use run-walk intervals as needed. D o not make up missed mileage.\nLong sessions over 75-90 minutes: practic e fueling and hydration.\nDaily ChatGPT briefing may reflect later chang es\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261201@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261201 DTEND;VALUE=DATE:20261202 SUMMARY:Easy run - 4 mi DESCRIPTION:Week 8 of 19. 4 mi relaxed.\nEffort-based 50K completion plan : keep easy days conversational\; use run-walk intervals as needed. Do n ot make up missed mileage.\nLong sessions over 75-90 minutes: practice f ueling and hydration.\nDaily ChatGPT briefing may reflect later changes\ ; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261202@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261202 DTEND;VALUE=DATE:20261203 SUMMARY:Strength DESCRIPTION:Week 8 of 19. 20–25 min easy-to-moderate.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 min utes: practice fueling and hydration.\nDaily ChatGPT briefing may reflec t later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261203@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261203 DTEND;VALUE=DATE:20261204 SUMMARY:Easy run - 5 mi DESCRIPTION:Week 8 of 19. 5 mi conversational.\nEffort-based 50K completi on plan: keep easy days conversational\; use run-walk intervals as neede d. Do not make up missed mileage.\nLong sessions over 75-90 minutes: pra ctice fueling and hydration.\nDaily ChatGPT briefing may reflect later c hanges\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261204@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261204 DTEND;VALUE=DATE:20261205 SUMMARY:Rest DESCRIPTION:Week 8 of 19. No running.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fue ling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261205@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261205 DTEND;VALUE=DATE:20261206 SUMMARY:Long easy run/walk - 9 mi DESCRIPTION:Week 8 of 19. 9 mi comfortable.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practi ce fueling and hydration.\nDaily ChatGPT briefing may reflect later chan ges\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261206@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261206 DTEND;VALUE=DATE:20261207 SUMMARY:Recovery run/walk - 2–3 mi DESCRIPTION:Week 8 of 19. 2–3 mi easy or walk.\nEffort-based 50K comple tion plan: keep easy days conversational\; use run-walk intervals as nee ded. Do not make up missed mileage.\nLong sessions over 75-90 minutes: p ractice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261207@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261207 DTEND;VALUE=DATE:20261208 SUMMARY:Rest + mobility DESCRIPTION:Week 9 of 19. 10 min mobility.\nEffort-based 50K completion p lan: keep easy days conversational\; use run-walk intervals as needed. D o not make up missed mileage.\nLong sessions over 75-90 minutes: practic e fueling and hydration.\nDaily ChatGPT briefing may reflect later chang es\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261208@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261208 DTEND;VALUE=DATE:20261209 SUMMARY:Easy run - 5 mi DESCRIPTION:Week 9 of 19. 5 mi conversational.\nEffort-based 50K completi on plan: keep easy days conversational\; use run-walk intervals as neede d. Do not make up missed mileage.\nLong sessions over 75-90 minutes: pra ctice fueling and hydration.\nDaily ChatGPT briefing may reflect later c hanges\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261209@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261209 DTEND;VALUE=DATE:20261210 SUMMARY:Strength + walk DESCRIPTION:Week 9 of 19. 25–30 min strength.\nEffort-based 50K complet ion plan: keep easy days conversational\; use run-walk intervals as need ed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: pr actice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261210@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261210 DTEND;VALUE=DATE:20261211 SUMMARY:Steady aerobic run - 6 mi DESCRIPTION:Week 9 of 19. 6 mi total\; controlled steady section of 20 mi n.\nEffort-based 50K completion plan: keep easy days conversational\; us e run-walk intervals as needed. Do not make up missed mileage.\nLong ses sions over 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sy nc with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261211@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261211 DTEND;VALUE=DATE:20261212 SUMMARY:Rest DESCRIPTION:Week 9 of 19. No running.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fue ling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261212@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261212 DTEND;VALUE=DATE:20261213 SUMMARY:Long easy run/walk - 14 mi DESCRIPTION:Week 9 of 19. 14 mi\; fuel 40–60 g carbohydrate/hour as tol erated.\nEffort-based 50K completion plan: keep easy days conversational \; use run-walk intervals as needed. Do not make up missed mileage.\nLon g sessions over 75-90 minutes: practice fueling and hydration.\nDaily Ch atGPT briefing may reflect later changes\; calendar does not automatical ly sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261213@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261213 DTEND;VALUE=DATE:20261214 SUMMARY:Recovery run/walk - 3–4 mi DESCRIPTION:Week 9 of 19. 3–4 mi very easy.\nEffort-based 50K completio n plan: keep easy days conversational\; use run-walk intervals as needed . Do not make up missed mileage.\nLong sessions over 75-90 minutes: prac tice fueling and hydration.\nDaily ChatGPT briefing may reflect later ch anges\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261214@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261214 DTEND;VALUE=DATE:20261215 SUMMARY:Rest + mobility DESCRIPTION:Week 10 of 19. 10 min mobility.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practi ce fueling and hydration.\nDaily ChatGPT briefing may reflect later chan ges\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261215@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261215 DTEND;VALUE=DATE:20261216 SUMMARY:Easy run - 5 mi DESCRIPTION:Week 10 of 19. 5 mi easy.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fue ling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261216@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261216 DTEND;VALUE=DATE:20261217 SUMMARY:Strength DESCRIPTION:Week 10 of 19. 25 min\; avoid heavy leg fatigue.\nEffort-base d 50K completion plan: keep easy days conversational\; use run-walk inte rvals as needed. Do not make up missed mileage.\nLong sessions over 75-9 0 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may r eflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261217@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261217 DTEND;VALUE=DATE:20261218 SUMMARY:Easy trail/steady run - 6 mi DESCRIPTION:Week 10 of 19. 6 mi controlled\; practice hiking inclines.\nE ffort-based 50K completion plan: keep easy days conversational\; use run -walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT brie fing may reflect later changes\; calendar does not automatically sync wi th it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261218@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261218 DTEND;VALUE=DATE:20261219 SUMMARY:Rest DESCRIPTION:Week 10 of 19. No running.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do no t make up missed mileage.\nLong sessions over 75-90 minutes: practice fu eling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261219@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261219 DTEND;VALUE=DATE:20261220 SUMMARY:Long easy run/walk - 16 mi DESCRIPTION:Week 10 of 19. 16 mi\; full fueling and hydration rehearsal.\ nEffort-based 50K completion plan: keep easy days conversational\; use r un-walk intervals as needed. Do not make up missed mileage.\nLong sessio ns over 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT br iefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261220@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261220 DTEND;VALUE=DATE:20261221 SUMMARY:Recovery run/walk - 3–5 mi DESCRIPTION:Week 10 of 19. 3–5 mi easy\; walk if legs are heavy.\nEffor t-based 50K completion plan: keep easy days conversational\; use run-wal k intervals as needed. Do not make up missed mileage.\nLong sessions ove r 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with i t. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261221@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261221 DTEND;VALUE=DATE:20261222 SUMMARY:Rest + mobility DESCRIPTION:Week 11 of 19. 10 min mobility.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practi ce fueling and hydration.\nDaily ChatGPT briefing may reflect later chan ges\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261222@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261222 DTEND;VALUE=DATE:20261223 SUMMARY:Easy run - 4 mi DESCRIPTION:Week 11 of 19. 4 mi relaxed.\nEffort-based 50K completion pla n: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes \; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261223@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261223 DTEND;VALUE=DATE:20261224 SUMMARY:Strength DESCRIPTION:Week 11 of 19. 20–25 min light-to-moderate.\nEffort-based 5 0K completion plan: keep easy days conversational\; use run-walk interva ls as needed. Do not make up missed mileage.\nLong sessions over 75-90 m inutes: practice fueling and hydration.\nDaily ChatGPT briefing may refl ect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261224@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261224 DTEND;VALUE=DATE:20261225 SUMMARY:Easy run - 5 mi DESCRIPTION:Week 11 of 19. 5 mi conversational.\nEffort-based 50K complet ion plan: keep easy days conversational\; use run-walk intervals as need ed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: pr actice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261225@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261225 DTEND;VALUE=DATE:20261226 SUMMARY:Rest DESCRIPTION:Week 11 of 19. No running.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do no t make up missed mileage.\nLong sessions over 75-90 minutes: practice fu eling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261226@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261226 DTEND;VALUE=DATE:20261227 SUMMARY:Long easy run/walk - 12 mi DESCRIPTION:Week 11 of 19. 12 mi comfortable.\nEffort-based 50K completio n plan: keep easy days conversational\; use run-walk intervals as needed . Do not make up missed mileage.\nLong sessions over 75-90 minutes: prac tice fueling and hydration.\nDaily ChatGPT briefing may reflect later ch anges\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20261227@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20261227 DTEND;VALUE=DATE:20261228 SUMMARY:Recovery run/walk - 2–4 mi DESCRIPTION:Week 11 of 19. 2–4 mi easy.\nEffort-based 50K completion pl an: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may reflect later change s\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20271228@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20271228 DTEND;VALUE=DATE:20271229 SUMMARY:Rest + mobility DESCRIPTION:Week 12 of 19. 10 min mobility.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practi ce fueling and hydration.\nDaily ChatGPT briefing may reflect later chan ges\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20271229@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20271229 DTEND;VALUE=DATE:20271230 SUMMARY:Easy run - 6 mi DESCRIPTION:Week 12 of 19. 6 mi conversational.\nEffort-based 50K complet ion plan: keep easy days conversational\; use run-walk intervals as need ed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: pr actice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20271230@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20271230 DTEND;VALUE=DATE:20271231 SUMMARY:Strength DESCRIPTION:Week 12 of 19. 25 min\; moderate and controlled.\nEffort-base d 50K completion plan: keep easy days conversational\; use run-walk inte rvals as needed. Do not make up missed mileage.\nLong sessions over 75-9 0 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may r eflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20271231@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20271231 DTEND;VALUE=DATE:20280101 SUMMARY:Steady aerobic run - 6 mi DESCRIPTION:Week 12 of 19. 6 mi total\; no hard intervals.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk interv als as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may ref lect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20280101@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20280101 DTEND;VALUE=DATE:20280102 SUMMARY:Rest DESCRIPTION:Week 12 of 19. No running.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do no t make up missed mileage.\nLong sessions over 75-90 minutes: practice fu eling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20280102@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20280102 DTEND;VALUE=DATE:20280103 SUMMARY:Long easy run/walk - 18 mi DESCRIPTION:Week 12 of 19. 18 mi\; practice full race-day kit and fueling .\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sess ions over 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically syn c with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20280103@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20280103 DTEND;VALUE=DATE:20280104 SUMMARY:Recovery run/walk - 3–4 mi DESCRIPTION:Week 12 of 19. 3–4 mi very easy.\nEffort-based 50K completi on plan: keep easy days conversational\; use run-walk intervals as neede d. Do not make up missed mileage.\nLong sessions over 75-90 minutes: pra ctice fueling and hydration.\nDaily ChatGPT briefing may reflect later c hanges\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270104@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270104 DTEND;VALUE=DATE:20270105 SUMMARY:Rest + mobility DESCRIPTION:Week 13 of 19. 10 min mobility.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practi ce fueling and hydration.\nDaily ChatGPT briefing may reflect later chan ges\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270105@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270105 DTEND;VALUE=DATE:20270106 SUMMARY:Easy run - 6 mi DESCRIPTION:Week 13 of 19. 6 mi relaxed.\nEffort-based 50K completion pla n: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes \; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270106@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270106 DTEND;VALUE=DATE:20270107 SUMMARY:Strength DESCRIPTION:Week 13 of 19. 20–25 min\; avoid soreness.\nEffort-based 50 K completion plan: keep easy days conversational\; use run-walk interval s as needed. Do not make up missed mileage.\nLong sessions over 75-90 mi nutes: practice fueling and hydration.\nDaily ChatGPT briefing may refle ct later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270107@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270107 DTEND;VALUE=DATE:20270108 SUMMARY:Easy trail/steady run - 6 mi DESCRIPTION:Week 13 of 19. 6 mi controlled.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practi ce fueling and hydration.\nDaily ChatGPT briefing may reflect later chan ges\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270108@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270108 DTEND;VALUE=DATE:20270109 SUMMARY:Rest DESCRIPTION:Week 13 of 19. No running.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do no t make up missed mileage.\nLong sessions over 75-90 minutes: practice fu eling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270109@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270109 DTEND;VALUE=DATE:20270110 SUMMARY:Long easy run/walk - 20 mi DESCRIPTION:Week 13 of 19. 20 mi maximum target\; keep effort easy and fu el regularly.\nEffort-based 50K completion plan: keep easy days conversa tional\; use run-walk intervals as needed. Do not make up missed mileage .\nLong sessions over 75-90 minutes: practice fueling and hydration.\nDa ily ChatGPT briefing may reflect later changes\; calendar does not autom atically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270110@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270110 DTEND;VALUE=DATE:20270111 SUMMARY:Recovery run/walk - 3–4 mi DESCRIPTION:Week 13 of 19. 3–4 mi very easy\, or walk if needed.\nEffor t-based 50K completion plan: keep easy days conversational\; use run-wal k intervals as needed. Do not make up missed mileage.\nLong sessions ove r 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with i t. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270111@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270111 DTEND;VALUE=DATE:20270112 SUMMARY:Rest + mobility DESCRIPTION:Week 14 of 19. 10 min mobility.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practi ce fueling and hydration.\nDaily ChatGPT briefing may reflect later chan ges\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270112@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270112 DTEND;VALUE=DATE:20270113 SUMMARY:Easy run - 5 mi DESCRIPTION:Week 14 of 19. 5 mi conversational.\nEffort-based 50K complet ion plan: keep easy days conversational\; use run-walk intervals as need ed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: pr actice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270113@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270113 DTEND;VALUE=DATE:20270114 SUMMARY:Strength DESCRIPTION:Week 14 of 19. 20–25 min light-to-moderate.\nEffort-based 5 0K completion plan: keep easy days conversational\; use run-walk interva ls as needed. Do not make up missed mileage.\nLong sessions over 75-90 m inutes: practice fueling and hydration.\nDaily ChatGPT briefing may refl ect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270114@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270114 DTEND;VALUE=DATE:20270115 SUMMARY:Easy run - 5 mi DESCRIPTION:Week 14 of 19. 5 mi relaxed.\nEffort-based 50K completion pla n: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes \; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270115@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270115 DTEND;VALUE=DATE:20270116 SUMMARY:Rest DESCRIPTION:Week 14 of 19. No running.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do no t make up missed mileage.\nLong sessions over 75-90 minutes: practice fu eling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270116@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270116 DTEND;VALUE=DATE:20270117 SUMMARY:Long easy run/walk - 14 mi DESCRIPTION:Week 14 of 19. 14 mi comfortable.\nEffort-based 50K completio n plan: keep easy days conversational\; use run-walk intervals as needed . Do not make up missed mileage.\nLong sessions over 75-90 minutes: prac tice fueling and hydration.\nDaily ChatGPT briefing may reflect later ch anges\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270117@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270117 DTEND;VALUE=DATE:20270118 SUMMARY:Recovery run/walk - 2–4 mi DESCRIPTION:Week 14 of 19. 2–4 mi easy.\nEffort-based 50K completion pl an: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may reflect later change s\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270118@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270118 DTEND;VALUE=DATE:20270119 SUMMARY:Rest + mobility DESCRIPTION:Week 15 of 19. 10 min mobility.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practi ce fueling and hydration.\nDaily ChatGPT briefing may reflect later chan ges\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270119@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270119 DTEND;VALUE=DATE:20270120 SUMMARY:Easy run - 5 mi DESCRIPTION:Week 15 of 19. 5 mi conversational.\nEffort-based 50K complet ion plan: keep easy days conversational\; use run-walk intervals as need ed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: pr actice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270120@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270120 DTEND;VALUE=DATE:20270121 SUMMARY:Strength DESCRIPTION:Week 15 of 19. 20 min light\; no heavy legs.\nEffort-based 50 K completion plan: keep easy days conversational\; use run-walk interval s as needed. Do not make up missed mileage.\nLong sessions over 75-90 mi nutes: practice fueling and hydration.\nDaily ChatGPT briefing may refle ct later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270121@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270121 DTEND;VALUE=DATE:20270122 SUMMARY:Easy run - 5 mi DESCRIPTION:Week 15 of 19. 5 mi easy.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fue ling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270122@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270122 DTEND;VALUE=DATE:20270123 SUMMARY:Rest DESCRIPTION:Week 15 of 19. No running\; prepare gear and fueling.\nEffort -based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it . TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270123@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270123 DTEND;VALUE=DATE:20270124 SUMMARY:Peak long run/walk - 22 mi DESCRIPTION:Week 15 of 19. 22 mi maximum planned long run\; stop if pain or unusual fatigue.\nEffort-based 50K completion plan: keep easy days co nversational\; use run-walk intervals as needed. Do not make up missed m ileage.\nLong sessions over 75-90 minutes: practice fueling and hydratio n.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270124@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270124 DTEND;VALUE=DATE:20270125 SUMMARY:Recovery walk or short - 0–3 mi DESCRIPTION:Week 15 of 19. 0–3 mi only if recovering well\; walking is fine.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fueling and hydration.\nDaily Chat GPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270125@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270125 DTEND;VALUE=DATE:20270126 SUMMARY:Rest + mobility DESCRIPTION:Week 16 of 19. 10 min mobility.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practi ce fueling and hydration.\nDaily ChatGPT briefing may reflect later chan ges\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270126@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270126 DTEND;VALUE=DATE:20270127 SUMMARY:Easy run - 5 mi DESCRIPTION:Week 16 of 19. 5 mi relaxed.\nEffort-based 50K completion pla n: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes \; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270127@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270127 DTEND;VALUE=DATE:20270128 SUMMARY:Light strength DESCRIPTION:Week 16 of 19. 15–20 min\; bodyweight/light weights.\nEffor t-based 50K completion plan: keep easy days conversational\; use run-wal k intervals as needed. Do not make up missed mileage.\nLong sessions ove r 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with i t. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270128@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270128 DTEND;VALUE=DATE:20270129 SUMMARY:Easy run - 5 mi DESCRIPTION:Week 16 of 19. 5 mi conversational.\nEffort-based 50K complet ion plan: keep easy days conversational\; use run-walk intervals as need ed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: pr actice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270129@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270129 DTEND;VALUE=DATE:20270130 SUMMARY:Rest DESCRIPTION:Week 16 of 19. No running.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do no t make up missed mileage.\nLong sessions over 75-90 minutes: practice fu eling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270130@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270130 DTEND;VALUE=DATE:20270131 SUMMARY:Long easy run/walk - 16 mi DESCRIPTION:Week 16 of 19. 16 mi comfortable\; no pace testing.\nEffort-b ased 50K completion plan: keep easy days conversational\; use run-walk i ntervals as needed. Do not make up missed mileage.\nLong sessions over 7 5-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing ma y reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270131@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270131 DTEND;VALUE=DATE:20270201 SUMMARY:Recovery run/walk - 2–4 mi DESCRIPTION:Week 16 of 19. 2–4 mi very easy.\nEffort-based 50K completi on plan: keep easy days conversational\; use run-walk intervals as neede d. Do not make up missed mileage.\nLong sessions over 75-90 minutes: pra ctice fueling and hydration.\nDaily ChatGPT briefing may reflect later c hanges\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270201@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270201 DTEND;VALUE=DATE:20270202 SUMMARY:Rest + mobility DESCRIPTION:Week 17 of 19. 10 min mobility.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practi ce fueling and hydration.\nDaily ChatGPT briefing may reflect later chan ges\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270202@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270202 DTEND;VALUE=DATE:20270203 SUMMARY:Easy run - 4–5 mi DESCRIPTION:Week 17 of 19. 4–5 mi relaxed.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: pract ice fueling and hydration.\nDaily ChatGPT briefing may reflect later cha nges\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270203@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270203 DTEND;VALUE=DATE:20270204 SUMMARY:Light strength DESCRIPTION:Week 17 of 19. 15 min mobility/bodyweight\; no soreness.\nEff ort-based 50K completion plan: keep easy days conversational\; use run-w alk intervals as needed. Do not make up missed mileage.\nLong sessions o ver 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefi ng may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270204@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270204 DTEND;VALUE=DATE:20270205 SUMMARY:Easy run - 4–5 mi DESCRIPTION:Week 17 of 19. 4–5 mi conversational.\nEffort-based 50K com pletion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes : practice fueling and hydration.\nDaily ChatGPT briefing may reflect la ter changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270205@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270205 DTEND;VALUE=DATE:20270206 SUMMARY:Rest DESCRIPTION:Week 17 of 19. No running.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do no t make up missed mileage.\nLong sessions over 75-90 minutes: practice fu eling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270206@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270206 DTEND;VALUE=DATE:20270207 SUMMARY:Long easy run/walk - 12 mi DESCRIPTION:Week 17 of 19. 12 mi\; rehearse race-day breakfast and fuelin g.\nEffort-based 50K completion plan: keep easy days conversational\; us e run-walk intervals as needed. Do not make up missed mileage.\nLong ses sions over 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sy nc with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270207@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270207 DTEND;VALUE=DATE:20270208 SUMMARY:Recovery run/walk - 2–3 mi DESCRIPTION:Week 17 of 19. 2–3 mi easy.\nEffort-based 50K completion pl an: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may reflect later change s\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270208@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270208 DTEND;VALUE=DATE:20270209 SUMMARY:Rest + mobility DESCRIPTION:Week 18 of 19. 10 min mobility.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practi ce fueling and hydration.\nDaily ChatGPT briefing may reflect later chan ges\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270209@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270209 DTEND;VALUE=DATE:20270210 SUMMARY:Easy run - 3–4 mi DESCRIPTION:Week 18 of 19. 3–4 mi relaxed.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: pract ice fueling and hydration.\nDaily ChatGPT briefing may reflect later cha nges\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270210@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270210 DTEND;VALUE=DATE:20270211 SUMMARY:Rest or easy walk DESCRIPTION:Week 18 of 19. No strength that causes soreness.\nEffort-base d 50K completion plan: keep easy days conversational\; use run-walk inte rvals as needed. Do not make up missed mileage.\nLong sessions over 75-9 0 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may r eflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270211@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270211 DTEND;VALUE=DATE:20270212 SUMMARY:Easy run - 3–4 mi DESCRIPTION:Week 18 of 19. 3–4 mi\; finish feeling fresh.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk inter vals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may re flect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270212@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270212 DTEND;VALUE=DATE:20270213 SUMMARY:Rest DESCRIPTION:Week 18 of 19. Check shoes\, socks\, layers and nutrition.\nE ffort-based 50K completion plan: keep easy days conversational\; use run -walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT brie fing may reflect later changes\; calendar does not automatically sync wi th it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270213@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270213 DTEND;VALUE=DATE:20270214 SUMMARY:Easy long run/walk - 8 mi DESCRIPTION:Week 18 of 19. 8 mi relaxed.\nEffort-based 50K completion pla n: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes \; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270214@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270214 DTEND;VALUE=DATE:20270215 SUMMARY:Recovery walk DESCRIPTION:Week 18 of 19. 20–40 min easy.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: pract ice fueling and hydration.\nDaily ChatGPT briefing may reflect later cha nges\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270215@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270215 DTEND;VALUE=DATE:20270216 SUMMARY:Rest DESCRIPTION:Week 19 of 19. Gentle mobility only.\nEffort-based 50K comple tion plan: keep easy days conversational\; use run-walk intervals as nee ded. Do not make up missed mileage.\nLong sessions over 75-90 minutes: p ractice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270216@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270216 DTEND;VALUE=DATE:20270217 SUMMARY:Easy run - 3 mi DESCRIPTION:Week 19 of 19. 3 mi easy\; no workout.\nEffort-based 50K comp letion plan: keep easy days conversational\; use run-walk intervals as n eeded. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may reflect lat er changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270217@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270217 DTEND;VALUE=DATE:20270218 SUMMARY:Rest or walk DESCRIPTION:Week 19 of 19. 20–30 min easy\; prepare race kit.\nEffort-b ased 50K completion plan: keep easy days conversational\; use run-walk i ntervals as needed. Do not make up missed mileage.\nLong sessions over 7 5-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing ma y reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270218@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270218 DTEND;VALUE=DATE:20270219 SUMMARY:Shakeout - 2 mi DESCRIPTION:Week 19 of 19. 2 mi very easy\, or rest if preferred.\nEffort -based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it . TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270219@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270219 DTEND;VALUE=DATE:20270220 SUMMARY:Rest + race prep DESCRIPTION:Week 19 of 19. No running\; familiar carb-rich meals\, hydrat ion\, early bedtime.\nEffort-based 50K completion plan: keep easy days c onversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fueling and hydrati on.\nDaily ChatGPT briefing may reflect later changes\; calendar does no t automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270220@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270220 DTEND;VALUE=DATE:20270221 SUMMARY:SANDHILLS 50K - 31.1 mi DESCRIPTION:Week 19 of 19. Race day: planned run-walk from the start\; fu el consistently. Verify official start/cutoff. Official start time and c utoff must be verified with organizer. This is an all-day placeholder\, not a confirmed start time.\nEffort-based 50K completion plan: keep easy days conversational\; use run-walk intervals as needed. Do not make up missed mileage.\nLong sessions over 75-90 minutes: practice fueling and hydration.\nDaily ChatGPT briefing may reflect later changes\; calendar does not automatically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT BEGIN:VEVENT UID:sandhills50k-2026-20270221@training.chatgpt DTSTAMP:20261014T190000Z DTSTART;VALUE=DATE:20270221 DTEND;VALUE=DATE:20270222 SUMMARY:Recovery DESCRIPTION:Week 19 of 19. Rest\, eat\, hydrate\, and walk gently only if comfortable.\nEffort-based 50K completion plan: keep easy days conversa tional\; use run-walk intervals as needed. Do not make up missed mileage .\nLong sessions over 75-90 minutes: practice fueling and hydration.\nDa ily ChatGPT briefing may reflect later changes\; calendar does not autom atically sync with it. TRANSP:TRANSPARENT STATUS:CONFIRMED END:VEVENT END:VCALENDAR