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Free tools for sprint coaches
Fast, no-fuss calculators built on published sports-science methods. Everything runs in your browser — no account, no data leaving your device.
Sprint force–velocity profile
Turn split times into an athlete's F–v–P profile: F0, V0, Pmax, RFmax and the force–velocity line. Based on the Samozino & Morin method.
Vertical jump force–velocity profile
Loaded squat-jump F–v profiling: F0, V0, Pmax, and the method's optimal profile. Based on the Samozino jump method.
Load–velocity profile
Turn resisted-sprint or gym load–velocity data into L0 (max load), V0 and Pmax via a linear load–velocity fit.