They use data from past races to generate random outcomes, similar to slot machines.

Overall, HHR slots are electronic gambling machines that allow players to bet on previously run horse races. Some states consider them a form of pari-mutuel betting rather than gambling because they involve betting on previously run horse races. They also provide an added layer of excitement because players can watch as the race unfolds before their eyes.Īnother reason for their popularity is that they’re legal in some states where traditional slot machines are not. Many people enjoy them because they require some knowledge about horse racing and strategy to win.

One reason for the popularity of HHR slots is that they offer an alternative to traditional slot machines.