The league's final attempt to win the Cup came a year later in March 1911, with Galt again losing to Ottawa, which now played in the National Hockey Association (NHA) .
The league disbanded after the 1911 season. The OPHL teams were raided for players by the NHA after the NHA was itself raided for players by the Pacific Coast Hockey Association(PCHA). Players who left included Eddie Oatman, Jack McDonald and Goldie Prodgers. The Moncton Victorias of the Maritime Professional Hockey League (MPHL) signed nearly all of the champion Galt team's players. The Victorias would win the MPHL championship and challenge NHA champion Quebec.