What is "proposition bet"

In gambling, a "proposition bet" (prop bet, prop, exotic, novelty, or a side bet) is a bet made regarding the occurrence or non-occurrence during a game (usually a gambling game) of an event not directly affecting the game's final outcome.

Proposition bets in sports are differentiated from the general bets for or against a particular team or regarding the total number of points scored. Traditionally, proposition bets can be made on outcomes such as the number of strikeouts a pitcher will accumulate in a baseball game, whether a non-offensive player will score in an American football game, which team will score the first points of the game, the discipline record of teams in a match, the timing of certain events, the number of specific events per team or in the entire match, realistically any statistically discreet event contained in a match or game could be bet on.

Fixing part of a match for a certain result in a proposition bet is called Spot-fixing.