Online sport betting, also referred to by sport booking, is the practice of placing bets on sporting events. Historically, bets on sporting events were made based on the outcome of the event. However, PASPA has largely prevented betting on sports via online and in-person however Nevada has one exception. To place Thor , one had to visit a betting operator. Nowadays, sports booking applications have made it possible for people to place bets on their mobile devices and make payments. These applications also act as a digital clearinghouse to process bet calls and payouts.