The season started earlier, on November 29, and because the Mount Royal Arena couldn't produce ice, it was decided to move a game against the Toronto St. Patricks to the Forum.
[1] To facilitate the change in venue, the Canadiens paid the Mount Royal Arena CA$1,000 (equivalent to $17,456 in 2023) to play at the Forum.
It was suggested that the Ottawa Senators be included in the playoffs, but St. Patricks manager Charlie Querrie and Canadiens' coach Leo Dandurand cited a fourth-place finish didn't qualify Ottawa a playoff berth and it was decided that Montreal and Toronto had played for the league title.
Montreal won the series against Toronto and was awarded the Prince of Wales Trophy and earned the right to play for the Stanley Cup.
As a foot-note, the Seattle Metropolitans could have claimed the Stanley Cup during the flu cancelled season of 1919, but chose not to as a display of good-sportsmanship.