The TD Garden faithful arrived expecting to celebrate. Instead, they witnessed the Buffalo Sabres dismantle their Bruins, ripping a 6-1 victory right out from under them in a Game 4 playoff shocker. This wasn't just an upset; it was an absolute offensive barrage from a Sabres team suddenly playing with its back against the wall.
Buffalo Sabres
The Sabres exploded from the opening puck drop, establishing an early lead and never relinquishing control. 
Bowen ByramBUF ignited the scoring, followed quickly by 
Alex TuchBUF and 
Peyton KrebsBUF, who tore apart the Bruins' defensive structure with a relentless surge of goals. Buffalo maintained suffocating pressure throughout the contest, converting chances and silencing the home crowd as they rolled to a commanding victory.
Tonight, the pre-game model's 49% win probability for Buffalo proved insufficient, unable to anticipate such a lopsided offensive display. Bowen ByramBUF, riding an 87% surge above his season average in momentum per minute (PPM), delivered with a crucial goal and an assist. Alex TuchBUF also provided 1 goal and 1 assist, his PPM trending a robust 48% above his season average, validating his recent ascent.
Colorado Avalanche
Colorado responded fiercely to their previous loss, unleashing a dominant performance that saw them control the game from the second period onwards. 
Nathan MacKinnonCOL spearheaded the attack, creating multiple high-danger chances before converting his own opportunities, as the Avalanche piled on goals to establish an insurmountable lead and dictate the pace against the Kings.
The model correctly projected a Colorado victory with a 61% win probability, recognizing the Avalanche's underlying strength. Nathan MacKinnonCOL, despite his momentum per minute signaling 31% below his season average, still showcased his elite talent with 2 goals and 1 assist, proving that pure star power can transcend recent trends.
Tampa Bay Lightning
The Tampa Bay Lightning showcased their championship pedigree in a tight, back-and-forth battle, capitalizing on key power plays and defensive lapses from the Canadiens. 
Brandon HagelTBL struck twice, once early to set the tone and again in the decisive third period, propelling the Lightning to a narrow but critical road victory that kept their series hopes alive.
This contest represented an upset for the model, which only gave Tampa Bay a 49% chance to win, underestimating the Lightning's ability to grind out a road victory. Brandon HagelTBL, whose PPM was trending a solid 8% above his season average, proved to be the difference-maker with two critical goals, while 
Nikita KucherovTBL, despite a PPM 32% below his season average, still notched two crucial assists.
Edmonton Oilers
The Anaheim Ducks staved off elimination with a gritty, resilient performance, refusing to let the Oilers close out the series on home ice. After a seesaw first period, Anaheim found an extra gear, making the most of their chances and holding off a late Edmonton push to secure a vital one-goal victory, bringing energy back to the Honda Center.
The model's 50% win probability for Anaheim was validated, correctly identifying the toss-up nature of the matchup despite Edmonton's series lead. While no single Duck dominated the top performer list, the team's collective effort and timely scoring, particularly in preventing a sweep, confirmed the model's assessment of a closely contested battle.
Momentum Watch
The Buffalo Sabres' young core delivered emphatically, with Bowen ByramBUF's PPM soaring 87% above his season average and Peyton KrebsBUF' PPM climbing 78% above his, validating their recent upward trends as they combined for four points. Alex TuchBUF, with his PPM up 48%, further cemented Buffalo's momentum surge. Meanwhile, star power overcame slowing trends elsewhere; Nathan MacKinnonCOL (PPM -31% below season average) still produced 3 points for Colorado, and Nikita KucherovTBL (PPM -32% below season average) chipped in two assists for Tampa Bay, proving that established talent can often override short-term momentum dips.
Looking Ahead
Game 5s loom large across the board, with Buffalo and Tampa Bay looking to leverage their momentum to seize control of their now tied series against Boston and Montreal, respectively. The Colorado Avalanche will also aim to build on their dominant win as they head back home with the series knotted. All eyes will be on how Edmonton responds after missing their chance to sweep, with a desperate Anaheim looking to force even more games.
