Play-offs
Many rugby union club competitions culminate in a play-off series to determine the champion, including Super Rugby, Top 14, and the English Premiership. Up until the 2009–10 season, the PRO12 did not use this format, and champions were decided by the final league table.
Starting with the 2009–10 season the league champion is decided through the play-offs. This consists of the top four clubs of the league entering into a semi final with the winners progressing to the grand final. The winner of the final are crowned league champions.
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