Using A.I. to train me for my first marathon under 50 DAYS! - RUN SDJ

Aug 13, 2025

This is a quick summary of Using A.I. to train me for my first marathon under 50 DAYS! from RUN SDJ. It’s a great watch — we’re breaking it down so you can try the workout today. Be sure to check out the full video for all the details.

Key Points

ChatGPT can generate a day‑by‑day, 7‑week marathon plan that fits personal constraints (e.g., keeping Saturday park runs).
The plan was converted to kilometers and includes explicit pace zones: Easy, Comfortable, Conversational, Fast Intervals, and Tempo.
Strength work is built in with an 8‑movement routine performed a few times per week.
Garmin Connect’s Workout Creator is used to load the daily sessions onto a watch for on‑the‑go guidance.

Workout Example (Week 3)

Day	Session	Distance	Pace / Notes
Mon	Easy run	6 km	Easy pace (≈ +60‑70 s/km slower than race pace)
Tue	Interval set	5 × 800 m	Fast interval pace (≈ 10‑15 s/km faster than race pace) with 400 m jog recovery
Wed	Rest or light cross‑train
Thu	Tempo run	10 km	Tempo pace (≈ race pace + 20‑30 s/km)
Fri	Easy run	5 km	Comfortable conversational pace
Sat	Park run	8 km	Easy to moderate, enjoy the scenery
Sun	Long run	22 km	Long‑run pace (≈ +90‑120 s/km slower than race pace)

Strength Routine (2‑3×/week)

Squats, lunges, dead‑lifts, push‑ups, planks, single‑leg bridges, side‑plank dips, and calf raises – 2‑3 sets of 8‑12 reps each.

Closing Note Give this AI‑crafted 7‑week plan a try, tweak the paces to match your own recent 5 km/10 km times, and load the sessions into the Pacing app so you can customize on the fly. Good luck and enjoy the journey to your first marathon!