All of the games were held at the
Seattle Ice Arena. As with previous Stanley Cup series, the differing rules for the leagues alternated each game. PCHA rules were to be used in games one, three, and five; and NHL rules were to be used in games two and four. The actual game five used NHL rules, as it was considered a replay of game four. Seattle dominated Montreal under PCHA rules, scoring two in the first, three in the second, and a further two in the third. Corbeau of Montreal was injured but finished the game and continued to play in the series as a substitute. The Canadiens evened the series in game two with
Newsy Lalonde scoring all of Montreal's goals. Montreal took the lead and never relinquished it, although Seattle scored two in 32 seconds in the third to make it close. Joe Hall took a puck to the nose on a deliberate play by
Cully Wilson, but the rough tactics did not continue as Seattle tried to catch up. Back under PCHA rules, the Metropolitans won game three, 7–2. Seattle scored four goals in the first to take a commanding lead. No goals were scored in the second. In the third, Seattle prevented any comeback, outscoring Montreal 3–2. Game four has been considered one of the greatest hockey games ever played, ending in a scoreless tie after 20 minutes of overtime, with Seattle's
Hap Holmes and Montreal's
Georges Vézina blocking every shot. At the end of the first period, the Mets' Cully Wilson scored a goal, but Hall of Fame referee
Mickey Ion waved it off, deciding it was scored just after he had blown the period's final whistle. Near the close of the second overtime, Berlinguette of Montreal had a chance to win it but missed by inches. Wilson of Seattle mixed it up with Berlinguette, who had to leave the ice. As players lay collapsed across the ice, the crowd gave both teams an ovation after the game in appreciation of the teams' play. Between games four and five, discussions were made about which rules to use for game five. As game four had finished in a tie, the Canadiens wanted game five to be a replay of game four, using NHL rules, and Seattle wanted PCHA rules. The game was played under NHL rules, and it was agreed that in the future, teams would play overtime until a winning goal was scored. In the extra period, Montreal's substitute
Jack McDonald sprinted on the ice and tallied the game-winning goal in dramatic fashion after the Mets were down a player when
Frank Foyston was injured,
Jack Walker broke a skate, and Cully Wilson collapsed from exhaustion, leading the Canadiens to a 4–3 victory. The Metropolitans had only one substitute player, and the team was exhausted. On the last play, Cully Wilson went to the bench to be replaced by Frank Foyston. Foyston had scored nine of Seattle's 19 goals in the series, but by that point, he was unable to move and replace Wilson, leaving the team shorthanded while McDonald scored. Some players went to the hospital after the game, while others had to be carried home. ==Cancellation==