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The International Racquetball Tour is the professional racquetball organization for men's competition that dates back to the 1980s. Events are played mostly in the USA. Jason Mannino currently serves as President.〔http://www.irt-tour.com/index.php?option=com_content&view=article&id=122&Itemid=169〕 A former pro player himself, Mannino succeeded Dave Negrete, who resigned as IRT Commissioner on November 25, 2009 after being Commissioner since 2001. Initially, Mannino continued to play on the tour during the 2009-2010 season as well as serve as the IRT's leader, but retired at the end of that season to concentrate on being IRT President. ==Rules of play== IRT matches primarily use the rules as set out by (USA Racquetball ) with a few exceptions.〔http://www.irt-tour.com/index.php/2010-11-rules〕 The primary exceptions are matches are best of five games to 11 points each, and each game must be won by a minimum of two points (e.g., a 12-10 score can end a game, but 11-10 cannot). Also, players can only call one timeout per game. Beginning in the 2010-2011 season, the IRT has changed its service rule so that players get two opportunities to put the ball into play (two serve rule),〔http://irt-tour.com/index.php?option=com_content&view=article&id=118&Itemid=167〕 as in tennis where players are allowed two faults before losing a point. Since the 1990s, the IRT had been using a one serve rule, so a fault serve resulted in an immediate loss of serve. ==Results== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「International Racquetball Tour」の詳細全文を読む スポンサード リンク
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