Sports betting is the umbrella term used for the betting action involved with the prediction of a sporting event and placing a wager on the outcome of that event in order to win money. As one of the most popular forms of gambling in the world, sports betting typically involves wagers being placed on football (NFL), basketball (NBA), baseball (MLB), hockey (NHL), rugby (World Cup), boxing, horse racing, car races (F1), tennis (LGPA), soccer (Premier League, Spain League, UEFA Champions League, FIFA WorldCup), Cricket (ICC Cricket World Cup) and more. Those who place wagers are known as punters in the UK and bettors in the USA. Punters and bettors alike can place wagers in various ways, through services offered by bookmakers, bookies, sportsbooks, betting agencies, and betting exchanges. Bookmakers calculate the odds for available outcomes on selected matches, races, competitions and other sports markets. The term Book originates from the reference used by wagebrokers to track the details on wagers that are placed through their services. There are Bookies and Sportsbook, these services are generally online sources; some mainstream bookmakers screen live major events, such as football matches, rugby, cricket, and golf.