Sprint Time Calculator
Enter a flying 30m split and instantly predict your 100m or 200m potential. Used by sprinters in 30+ countries.
The Science of Sprint Prediction
JB Morin Force-Velocity Profiling
Our model utilizes principles from JB Morin's research on horizontal force production. Predicting a 100m time from a short split requires calculating the Index of Force Application (RF). We adjust your potential based on the "velocity-ratio" — the athlete's ability to maintain a high percentage of their theoretical max velocity over the entire race distance.
Weyand & Human Locomotion
Based on Weyand et al. (2000), peak running speed is primarily limited by the amount of mass-specific force applied to the ground. By inputting a "Flying 30m" split, the calculator isolates your maximum velocity (Vmax), removing the noise of reaction time and early-acceleration mechanical failures.
How the Math Works
The 3.3x Multiplier (Male) and 3.25x (Female) for Flying 30m splits are refined linear regression units derived from elite athletics databases. These constants account for the typical deceleration phase (speed endurance) and the acceleration tax of a standing start vs. the flying segment.
- Elite Athletes: Typically exhibit lower multipliers due to superior speed maintenance.
- Developmental Athletes: Often see a "potential" time they cannot yet hit because their acceleration phase is longer than 30 meters.
Frequently Asked Questions
Get your full sprint report
Upload a 10-second sprint video. Get your ground contact time, cadence, technique score, injury risk map, and a 14-day training plan — all from your phone.
Free credits included — no coach needed