If a bowler delivers a no-ball by overstepping the crease, it costs one or two runs (depending on the competition) and their next delivery is designated a "free-hit". In this circumstance the batter can only be dismissed through a run out, hitting the ball twice or obstructing the field. The following fielding restrictions apply: No more than five fielders can be on the leg side at any time. During the first six overs, a maximum of two fielders can be outside the 30-yard circle (this is known as the powerplay). After the first six overs, a maximum of five fielders can be outside the fielding circle. If the fielding team does not start to bowl their 20th over within 75 minutes, the batting side is credited an extra six runs for every whole over bowled after the 75-minute mark; the umpire may add more time to this if they believe the batting team is wasting time. Tie deciders Currently, if the match ends with the scores tied and there must be a winner, the tie is broken with a one-over-per-side Eliminator or Super Over: Each team nominates three batsmen and one bowler to play a one-over-per-side "mini-match". The team which bats second in the match bats first in the Super Over. In turn, each side bats one over bowled by the one nominated opposition bowler, with their innings over if they lose two wickets before the over is completed. The side with the higher score from their Super Over wins. If the Super Over also ends up in a tie, it is repeated until the tie is broken. In the Australian domestic competition the Big Bash League, the Super Over is played slightly differently, with no two-wicket limit, and if the Super Over is also tied then a "countback" is used, with scores after the fifth ball for each team being used to determine the result. If it is still tied, then the countback goes to four balls, and so on. The latest Super Over to decide a match was between the Sydney Sixers and the Brisbane Heat on 25 January 2017, in the Big Bash League at the Brisbane Cricket Ground, with the Sixers winning 0/22 to 0/15 in the Super Over after tying on 164. Tied Twenty20 matches were previously decided by a bowl-out. International Women's and men's Twenty20 Internationals have been played since 2004 and 2005 respectively.