T20 Cricket During the first 6 overs of an innings, a maximum of 2 fielders are allowed to stand outside the 30-yard circle. After this, a maximum of 5 players are allowed outside the circle for the rest of the innings. Additionally, there are only 5 fielders allowed on the leg side of the field at any point in the innings. One last rule, which not as many people know about, is that there is only allowed to be 2 fielders behind square on the leg side whenever the ball is bowled. ODI cricket There are three ‘powerplay’ periods in ODI matches which govern where fielders can stand. In the first powerplay, two fielders are allowed to stand outside the 30-yard circle. In powerplay two, four fielders are allowed outside the circle. In the last powerplay, five fielders are allowed outside the circle. As well as the powerplay rules, I should also mention that a fielding side is only allowed to place a maximum of five fielders on the leg side at any point during the innings. Powerp...