For instance, on any given Saturday in the fall, a large number of college football games take place. In sports betting, parlays most often occur with a point spread bet across multiple games. If one leg of the bet fails, the whole parlay fails. If all parts, or legs, of the bet turn out in favor of the parlay, the bettor would then cash out a greater sum tied to the relative odds of each event. The wager is good for the entire parlay, unlike multiple single-game bets which each require a separate wager. To place a parlay bet, a wager must be placed on a string of events with definite decisions. Every part of the parlay must be achieved in order for the parlay to be successful, or hit. A parlay is a series of bets tied together to generate greater risk for a greater reward. Par*lay What Is The Definition Of Parlay In Sports Betting?ġ.