Historical horse racing
Historical horse racing (HHR), originally known as Instant Racing, is an electronic gambling product that allows players to bet on replays of horse races or dog races that have already been run, using terminals that typically resemble slot machines.
HHR premiered in Arkansas in 2000. It now operates in several U.S. states and Malta. It was created to offer slot machine-like gameplay in jurisdictions that allow parimutuel wagering but not slot machines. A portion of the game's revenue is typically directed to racing purses, which has been credited with revitalizing the declining sport of horse racing in some markets.
The primary providers of historical racing machines are Exacta Systems (a subsidiary of Churchill Downs, Inc.), PariMax (a division of the Stronach Group), and Ainsworth Gaming Technology.