After placing fourth in 1913–14, the Senators improved to win the NHA title, but lost the Stanley Cup 'World Series' playoff to the Vancouver Millionaires, played in Vancouver.
The Senators traded Percy LeSueur to the Ontarios for Fred Lake.
Montreal and Ottawa played a two-game total-goals series to determine the league championship and the O'Brien Cup.
As the 1914 Final was held in Toronto, all three games in this series were played at the arena of the PCHA's champion in Vancouver, British Columbia.
The Millionaires swept the best-of-five series in three games.