LA Chessboxing

Chessboxing is a new sport in which one 3-minute round of chess is followed by one 3-minute round of boxing and then back to the same chess game against the same opponent. Whoever wins by either checkmate or in the ring first WINS! All events are dedicated to supporting charities and helping people who learn to chessbox become superheroes in their communities by fighting for philanthropy!
"Take the king or win in the ring"

http://lachessboxing.com/