WHAT A GREAT IDEA FOR HYDRATION (London Marathon Training Vlog Ep10 - That Running Guy

Aug 13, 2025

Intro

This is a quick summary of WHAT A GREAT IDEA FOR HYDRATION (London Marathon Training Vlog Ep10) from That Running Guy. 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

Taper strategy: After a high‑intensity week, Chris cuts volume to keep legs fresh – two easy 5‑mile runs and a very light final week before the race.
Pacing focus: He runs his long run at about 6:54 min/mi, a 4‑mile progression at 7:11 min/mi, and a 5‑mile “goal‑pace” run around 7:10‑7:14 min/mi.
Hydration hack: Use a single Dyrulite (isotonic) sachet mixed into your water bottle. It tastes good, restores electrolytes, and prevents the heavy‑leg feeling that can lead to cramps.
Gear simplicity: Normal cotton socks (no blisters), a trusted flip‑belt for phone, gels, and a cheap hydration bottle; shoes with ~200 mi mileage that feel stable.
Gel schedule: Take a gel at the start and then every 5 miles (or roughly every 30‑35 min) with an extra on hand.
Race‑day pacing tip: Resist the urge to sprint off the gun; stick to your practiced pace to avoid early burnout.

Workout Example (Monday–Saturday of taper week)

Day	Distance	Pace (min/mi)	Note
Monday	10 mi	~6:54	Long run to build confidence, keep legs strong.
Tuesday	4 mi	~7:11	Progression run – start easy, finish at goal pace.
Wednesday	5 mi	7:10‑7:14 (goal pace)	Quick run to the car; keep most of it at marathon goal pace.
Friday	5 mi	Easy	Recovery, focus on relaxed effort.
Saturday	5 mi	Easy	Final easy run before the last week of taper.

All paces are in minutes per mile (the video is UK‑based, so distances are miles).
Feel free to adjust the distances or paces to match your own training level – just plug the numbers into your Pacing app and follow the same structure.

Closing Note

Give Chris’s simple hydration sachet a try on your next long run and see how it keeps your legs feeling light. Adapt the taper workouts to suit your schedule, log them in the Pacing app, and walk into race day confident and well‑hydrated. Good luck – you’ve got this!