The first edition of the A-League Men finals series was played at the culmination of the
2005–06 A-League season, beginning with the top four teams from the league ladder qualifying using a modified
Page playoff system, with the difference that each first-round game would be played over two legs starting with the modified Page playoff system.
Sydney FC claimed the first A-League Men championship, by defeating the
Central Coast Mariners 1–0 in the Grand Final, despite
Adelaide United winning the premiership prior. The same playoff systems were used the next few editions from 2007 to 2009. After four straight years the finals series adapted a new modified system for
top-six play-offs in 2010, with the amount of finals teams being increased from four to six; meaning the introduction of the elimination-finals for the lower finishing finals teams. ==Venues==