Possession (sports) determined by several methods, including a coin flip (American football and cricket), home team status (baseball), or by giving the teams an equal opportunity to physically take possession; this may be called a dropped-ball (association football), a ball-up (Australian rules football), a jump ball (basketball), or a face-off (hockey). In some timed sports, the team with possession may try to "run time off the clock" by keeping the ball and not attempting to score, in order to deny the opposing team possession. A shot clock speeds gameplay by requiring teams to attempt to score within a certain period of time
Comparison of rugby league and rugby union during a one on one tackle in league there is less scope for a turnover to occur than in rugby union. A study commissioned by the IRB found that between the years 2002 and 2004 possession was retained by the attacking team in 13 out of 14 tackles in rugby union. Collins has argued that the six tackle rule in rugby league offers a more even distribution of possession despite fewer opportunities to contest it. In both games the attacking team loses possession if they drop or pass the ball forward, which results in a scrum being awarded to the