I've seen a few chessboxing matches. The thing about boxing is that it's very rare to end by KO (especially at the level of your typical chess-boxer), so it wou

I've seen a few chessboxing matches. The thing about boxing is that it's very rare to end by KO (especially at the level of your typical chess-boxer), so it would normally be decided on points. However, because it's speed chess they're playing, and adrenaline is high, it's fairly hard to get all the way to the final round without a checkmate. So every single match I've seen has been won by the better chess player, and the boxing has just been an interesting diversion.