The prediction market for the winner of the NHL Eastern Conference Second Round series between the Buffalo Sabres and Montreal Canadiens saw a significant reversal on Sunday, May 17, 2026. Implied odds for a Sabres series victory surged 32.0 percentage points to 54%, flipping them from underdogs to favorites. The dramatic shift followed Buffalo's decisive 8-3 victory in Game 6, where the team scored seven unanswered goals to avoid elimination and force a deciding Game 7 [1], [2]. The probability for a Montreal series win fell in tandem, dropping 31.0 percentage points to 48%.
Distribution Analysis
The repricing reflects a direct transfer of probability from Montreal to Buffalo, with trading volume heavily concentrated on the rising Sabres contract.
| Outcome | Current Prob | Change | Volume |
|---|---|---|---|
| Buffalo Sabres | 54% | +32.0pp | 88,635 |
| Montreal Canadiens | 48% | -31.0pp | 47,169 |
Net: Probability shifted entirely to the Buffalo Sabres following their series-tying win, with volume on the rising contract nearly double that of the declining one.
What's Driving the Shift
The market's abrupt reversal appears to be a direct reaction to the on-ice momentum and the confirmation of home-ice advantage for the final game, though historical data provides some countervailing context.
Decisive Game 6 Victory: The primary catalyst for the repricing was Buffalo's stunning comeback in Montreal on Saturday, May 16 [1]. After falling behind 3-1 in the first period, the Sabres scored seven unanswered goals to win 8-3 and tie the series [2], [3]. Sabres captain Rasmus Dahlin contributed a goal and four assists, and the team chased two Montreal goalies from the net [1]. This offensive explosion likely convinced traders that the Sabres have significant momentum heading into the final game.
Home-Ice Advantage: By winning Game 6, the Sabres ensured that the series-deciding Game 7 will be played at their home arena, the KeyBank Center in Buffalo [1]. The game is scheduled for Monday, May 18, at 7:30 p.m. ET [1]. Home-ice advantage is a critical factor in a high-stakes elimination game, and its confirmation for Buffalo is now fully priced into the market.
Historical Headwinds: Despite the strong recent performance, Buffalo's price may be tempered by the franchise's historical struggles in these situations. The Sabres have an all-time record of one win and six losses in Game 7s, a win percentage of just.143 [4]. Conversely, the Canadiens have a strong historical record of 16-9 in Game 7s, a.640 winning percentage [4]. This historical data may explain why Montreal's implied probability remains relatively high at 48%, even after a lopsided loss.
Market Context
The shift marks a dramatic turnaround in a series that Montreal appeared poised to win. The Canadiens had taken a 3-2 series lead with a 6-3 victory in Buffalo in Game 5, putting them on the verge of advancing to the Eastern Conference Final [5]. The all-time playoff history between the two franchises is nearly even, with Montreal holding a slim 18-17 advantage in games won [8]. This is their first playoff meeting since the 1998 Eastern Conference Semi-Finals, a series Buffalo won in a 4-0 sweep [7].
The current market price of 54% for a Sabres win implies a slight edge, but it is far from a certainty, reflecting the unpredictable nature of a single elimination game. The winner will advance to face the Carolina Hurricanes for the conference title [2], [3].
What to Watch
The market will resolve following the conclusion of Game 7 on Monday, May 18, 2026. The game is scheduled to begin at 7:30 p.m. ET [1]. Settlement of the market will be based on official results reported by ESPN, the NHL, and Fox Sports.
