labthlete
The performance lab for endurance athletes

Your engine,
explained.

One lab session becomes your thresholds, your zones and a physics-based race plan: measured, modelled and paced, with honest uncertainty bands. For runners, triathletes and cyclists.

The endurance testing hub
One place for all your endurance testing, and for sharing it between coach and athlete. Lactate and durability testing today, and many more to come.
Optimal pacing
From your numbers, exactly how to run the race: when to push on a climb, when to ease on a descent, and the finish time it all adds up to.
Race explorer
Pick a real race and see where you'd land: your place in the field, your top percentage, your category rank, on the actual course.

Log in or sign up to use the full suite: save your tests, build your profile and get your real race plans.