Off-track betting (or OTB) refers to sanctioned gambling on horse racing outside a race track.

At legal off-track betting parlors, if bettors win, they have to pay the parlor a surcharge taken directly from the winnings. Bettors in New York can avoid paying the surcharges by placing their bets via an off-track betting corporation's account wagering service or at so-called super branches or teletheatres that charge a daily admission fee. Other jurisdictions such as Pennsylvania do not levy a surcharge on winnings. Most booked bets are now placed with licensed services in the Caribbean and Central America who entice bettors by offering them rebates on their bets.

See also

• Totalisator