In-play betting, also known as live betting or run betting, is the process of placing a bet during an event. This could be, for example, during a football match, horse race, golf tournament, or any event that carries a betting market.

It depends on the sport. Play  is for games and sports where you're competing directly against another person or team in a mock battle: football, tennis, chess, billiards. Sports where you're ultimately competing against a clock or the like (most track and field events, swimming) are do .

Sports betting is now legal in over 30 states with online sportsbooks available in Kentucky, New York, Ohio, Massachusetts, Maryland, Tennessee, New Jersey, Illinois, Pennsylvania, Arizona, Colorado, Virginia, Michigan, Indiana, Louisiana, Iowa, Kansas, West Virginia, Nevada, Wyoming, Arkansas and more.

While gambling is legal under U.S. federal law, there are significant restrictions pertaining to interstate and online gambling, as each state is free to regulate or prohibit the practice within its borders.