White, Caucasian men tend to dominate strongman competitions.
Blacks tend to dominate boxing (I can only think of Tyson Fury and Klitschko) and sprint events.
Gymnastics is starting to have equal representation at the highest level.
MMA does tend to be predominately white.
A strange mix here.
Deion Sanders recently got some criticism for his comments on the time of Penn State's Troy Apke in the 40 yd dash at the NFL combine.
He basically implied(strongly) that he was surprised that a white guy could run so fast. While I think that a white commentator would get criticized much more harshly if he made a comparative comment about a black athlete, I have to admit that I agree with him. It surprised me too.