set into opposition or rivalry; "let them match their best athletes against ours"; "pit a chess player against the Russian champion"; "He plays his two children off against each other"
You use playoffs to refer to a series of games between the winners of different leagues, to decide which teams will play for a championship. The winner will face the Oakland A's in the playoffs this weekend
If a competition ends with a tie, the winner is decided by playing further holes Currently, the winner is usually the first competitor to win a hole The U S and British Opens are exceptions
A playoff is an extra game which is played to decide the winner of a sports competition when two or more people have got the same score. Nick Faldo was beaten by Peter Baker in a play-off