The Bruins beat the Maple Leafs 5-3, and Boston's dominance showed in the underlying metrics: 55% of expected goals (5.46–4.46), 10 high-danger chances to Toronto's 6. But that advantage didn't translate in the expected way. Boston went 0-for-10 on high-danger looks; Toronto 0-for-6. Both teams scored elsewhere—the Bruins via the rush (4 goals from 35 chances) and low-danger spots (2 goals), the Leafs from low-danger (2 goals) and the rush (2 goals on 26 chances).

Goaltending decided it. J. Swayman (BOS) was exceptional: 30 saves at 0.909 SV%, 1.46 goals above expected. D. Hildeby (TOR) was nearly as good with 19 saves and a 1.58-goal advantage against expected. A. Stolarz was the problem: 8 saves at 0.727 SV%, 1.1 goals worse than expected. The tandem collapse for Toronto—particularly the second unit—negated what should have been a closer game based on play.

Boston found secondary scoring and Toronto's rebound opportunities evaporated: 9 created, zero converted. The Bruins had 3 rebound chances themselves and also failed to finish, but they didn't need to. They converted their chances in the margins.

The model projects a 2.5 to 2.7 goal game with Boston at 54% to win—as close to a pick'em as playoff hockey gets. The underlying numbers explain why.

At five-on-five, Boston owns a territorial edge: 49.0% Corsi to Toronto's 45.0%. The Bruins will camp in Toronto's end for stretches. But that Corsi advantage doesn't fully translate offensively—Boston's 47.0% xG% runs nearly even with Toronto's 46.0%. Here's the complication: Boston's 1.023 PDO means they're outperforming their shot quality. Regression is pricing in, which is why the model gives them only 54%, not 60%.

Goaltending matters for variance. D. Hildeby plays on a back-to-back—watch whether Boston pivots to a backup or leans on a tired starter, as that will reshape shot volume and rebound chaos.

Auston Matthews is Toronto's offensive engine at 1.10 expected goals per 60 minutes, with 17 goals and 13 assists. His 10.6% shooting rate is the key variable: that's unsustainably high for most players. If it regresses, Toronto's scoring output contracts. John Tavares (15G 24A, 0.91 xG/60) offers a countervailing advantage—a 12.4% shooting rate and 3 high-danger goals suggest secondary scoring depth that Boston can't simulate away.

Viktor Arvidsson anchors Boston's reply with 1.04 xG/60 across 18 goals and 24 assists, plus a 13.0% shooting rate that has room to stay elevated. Tanner Jeannot (6G 14A, 0.75 xG/60) grades as a secondary threat with 2 high-danger goals, though his 8.3% shooting rate implies downside if puck luck shifts.

Defensively, the edges are subtle. Toronto's Bo Groulx and Boston's Elias Lindholm are the listed weak links, but neither breakdown is dramatic enough to swing a coin flip. Matchup execution will decide this—Boston's territorial control against Toronto's shooting luck, with goaltending variance as the tiebreaker.