SOUTH BEND, Ind. — David Pastrnak delivered once again. Patrice Bergeron showed off his all-around game, and Tuukka Rask made a couple of big stops.

Oh, and those suits, too.

It was stylish start to the new year for the Boston Bruins.

Pastrnak had a goal and an assist, Rask made 36 saves and the Bruins beat the Chicago Blackhawks 4-2 on Tuesday in the Winter Classic at Notre Dame.

“You want to win those games when you’re on the big stage like that,” Bergeron said. “I know it’s a regular-season game, but still you know the meaning’s different when you’re playing in front of 76,000 people and on national TV. So we know what’s at stake with those games and we want to make the most of it.”

They certainly dressed for the occasion. Bergeron and company wore tailored suits, vests and hats to the game in a nod to their surroundings and “Peaky Blinders,” a TV show about a gang in England right after World War I. Rask also had Notre Dame’s iconic “Play Like A Champion Today” sign painted on the back of his helmet.

“I think these are the experiences that once you are done with the hockey career you can look back and like be happy that you were a part of and kind of cherish those moments,” Rask said.

Bergeron, Sean Kuraly and Brad Marchand also scored as Boston won for the second time in three appearances in the NHL’s annual outdoor game on New Year’s Day. The Bruins went 2 for 5 with the man advantage and killed off each of the Blackhawks’ four power plays.

The game was tied at 2 when Boston (22-14-4) caught a break in the third period – a little luck at the home of the Fighting Irish. Matt Grzelcyk’s big slap shot went off teammate Chris Wagner in front, but Kuraly beat Blackhawks defenseman Gustav Forsling to the rebound and backhanded the puck past Cam Ward at 10:20.

Backed by most of the sellout crowd of 76,126 in perfect conditions for outdoor hockey – the game-time temperature was 35.5 degrees, and a gray, overcast sky took the sun out of the equation – Chicago pushed hard for the tying score in the closing minutes, but came up empty.

Jonathan Toews sent a shot off the post after the Blackhawks pulled Ward for an extra attacker with about 1:30 left. Marchand then added an empty-netter for his 13th of the season.

Chicago (15-21-6) had won 5 of 6, but remained winless in an NHL-high fourth appearance in the Winter Classic. It also dropped to 1-5 in six outdoor games – also tops in the league.

Brendan Perlini and Dominik Kahun scored for the Blackhawks, and Ward made 32 stops in his first outdoor NHL game.

Chicago jumped in front when it scored first for the sixth straight game. David Kampf dug the puck out from behind the net and found a wide-open Perlini in the slot 8:30 into the first.

Pastrnak responded with his team-best 24th goal. With Artem Anisimov in the penalty box for tripping, Pastrnak got free in front and slid the puck past Ward at 12:38. He then celebrated by flapping his arms like a bird.

The teams exchanged goals again in the second. Kahun scored his fifth of the season, but Bergeron broke up a potential short-handed breakaway before tying it at 2 when he scored another power-play goal with 1:12 left.