I say bolt.
With other sports you have to learn a new skill (hitting,dribbling,whatever) to compete.
So that narrows it down to people who want to do that sport.
But like 90% of the earths population can run and he can legit say he can run faster then then everybody on the planet.
ashton is half black, so yes. *awaits all the race-flaming*
speaking of which, this olympics decathlon and heptathlon gold medalists are both halfies. are mulattoes some kind of super-race or something?