Compare Athletes
Pick two athletes and a distance, then watch them race head-to-head. Real recorded times from 100m to the marathon.
Select both athletes to compare
Speed Quiz
Guess who's faster, then watch the race. How long can you keep your streak going?
Race the Pros
Enter your own time and race head-to-head against any elite athlete. Can you keep up with Kipchoge or outsprint Bolt?
Start Racing →What is your RunReps Score?
Get a 0-1000 performance rating based on your time, age and gender. See how you stack up against pros and runners your age.
Calculate Score →Sprinter - Dice Racing Game
Build a card deck, roll the dice, and race through a bracket of real athletes. A roguelike racing game with 5,000+ real pros.
Play Sprinter →Common questions
How does the athlete comparison work?
Choose two athletes and a distance, and we line up their best recorded times in a side-by-side animated race, scaled to the real gap between them.
Where do the times come from?
Each athlete’s times are their best recorded marks at each distance, from 100m sprints right up to the marathon.
Can I compare myself to the athletes?
Yes. Try Race the Pros to run your time against an elite athlete, or the RunReps Score to rate your performance out of 1000.