The case against junk miles
Volume without intent is the most expensive mistake an amateur runner makes. Here's how I decide which kilometers earn their place on your plan.
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Endurance coach · Lyon · Taking athletes for Spring 2026
Antoine Delmas
Swim & run coaching, grounded in kinesiology.
I help recreational to sub-elite athletes swim smoother and run further without breaking down. Sessions are built from video analysis, physiology, and the patience of a ten-year age-group swimmer.
About Antoine
I grew up on the blocks at CN Lyon before switching to trail running at 19. A stress fracture taught me that the body is a system — no split is worth breaking. I trained as a kinesiologist at the University of Lyon 1 to fix that gap for the athletes I work with.
My coaching is opinionated: fewer sessions, cleaner technique, honest recovery. I won't write you a 14-hour block if 9 well-placed hours will do. Expect video, data, and conversations — not magic.
Outside coaching I'm usually in open water, reading physiology papers, or convincing my dog a tempo run is fun.
- Swim technique
- Open water
- Run mechanics
