For the first time in history, the customary seven man per side hockey game was reduced to six. The rover position had now been eliminated. Another rule change in 1912 required teams to complete their regular season before competing for the Stanley Cup. The Quebec Bulldogs, who posted a league-high 10-8-0 record, successfully defended the Cup against Moncton of the Maritime Professional Hockey League. The championship was a best of three affair. The Bulldogs won game one 9-3, and went on to win game two by an a 8-0 verdict to win their second straight title. Jack McDonald and Joe Malone combined for 14 of Quebec's 17 goals.