Historical horse racing (HHR), also known as Instant Racing, is a type of electronic gambling machine. HHR machines allow players to wager on replays of horse races or dog races that have already been run, paid out using the parimutuel betting system.
Historical horse racing (HHR), also known as Instant Racing, is a type of electronic gambling machine. HHR machines allow players to wager on replays of horse races or dog races that have already been run, paid out using the parimutuel betting system.
Source: Wikipedia "Historical horse racing" · CC BY-SA 4.0
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