A bet on a specific outcome of a sports event. If the bet wins, it pays; if it loses, it loses. Money lines change constantly – the listed line at the time you place your bet may differ from the posted line when the game starts. Also known as a “over/under” bet, this wager is over the total number of runs scored in a baseball or football game (depending on the sport) or points scored in a basketball game or hockey contest.

In totalizators (also called flexible-rate bets) the odds on a particular outcome are changing in real-time based on the share of the total exchange each result has received taking into account the bookmaker’s return rate. The more money placed on a result, the lower its odds become.

With sports betting becoming more commonplace, NFL players must be aware of how their actions might affect the integrity of regulated markets. The league has taken steps to embed itself in the industry since the Supreme Court struck down PASPA, including enhancing technology, adding security personnel and partnering with sportsbooks and integrity firms to provide more visibility of bets and where they are placed.

The NFL’s policy prohibits team and league employees, as well as agents, trainers, doctors and stadium workers, from placing, soliciting or facilitating bets on its games or practices. However, the prohibition doesn’t extend to amateur athletes or to fantasy contests that don’t involve cash prizes. The league has partnered with a number of sportsbooks and is integrating betting menus into pregame shows and stadiums.