Horse racing has always had its rhythms — the build-up to the post, the roar of the crowd, the last-second surge. But in 2026, those rhythms are being reimagined through screens, apps, and live data. Online horse racing betting isn’t replacing the sport — it’s making it more accessible than ever.

Horse racing is one of America's oldest spectator sports — and one of its most exciting betting markets. This guide breaks down everything you need to know, from how pari-mutuel odds work to the different types of bets available at US tracks.