Fitness, fatigue & form
Fitness (CTL)
Fatigue (ATL)
Form (TSB)
Running capability
Critical velocity4.17 m/s
D′ reserve142 m
Threshold pace3:55/km
Your aerobic engine and the anaerobic reserve you spend once, fit from your pace-duration curve. Open the race model → for predicted race times and a per-block pacing plan.
Live — computed from your synced Strava activities.
Methods: load, intensity & weighted power follow the power-training framework of Coggan & Allen; the fitness/fatigue chart is a Banister-style impulse-response model; critical power/velocity & W′/D′ follow Monod–Scherrer, Hill and Skiba. The metric names here are our own — the originals are trademarks of their respective owners.