A pari-mutuel machine, also known as a TOTE, is a betting system in which all bets of a particular type are placed together in a pool and the winners are determined by the amount of money wagered. The TOTE system allows for a more efficient distribution of winnings than traditional bookmaking, as the odds are not set by a single bookmaker but rather by the total amount of money wagered on a given event. This system is commonly used in horse racing, greyhound racing, and jai alai.