The advent of sports betting here has led to a sharp increase in wagering online. These places are located within the tracks of Delaware Park, Dover Downs, and Harrington Raceway.įurther, Delaware has legalized sports betting, including single-game wagers and futures bets, in 2018. There are already a handful of OTB’s around the state: three in fact. Known as one of the country’s more progressive states in terms of sports gambling, off-track betting has been legal in Delaware for a while now.