Broad Run goalie Joseph Pappagallo was late to Friday night’s game against No. 2 Stone Bridge, making his way to the rink after competing in a swim meet for the Spartans earlier in the afternoon.

Pappagallo arrived with about six minutes left in the first period, but by the time he was ready to enter the game, it was too late. With a flurry of early goals, the Bulldogs buried their Ashburn rivals and cruised to an 8-2 win before a standing room only crowd at the Ashburn Ice House.

Stone Bridge (10-0) got a pair of goals from junior Chris Berry and two more from Patrick O’Connor, who hit the back of the net twice on wicked slap shots from just inside the blue line to help the Bulldogs build a 4-0 lead before Pappagallo entered the net.

Trevor Mack, the Bulldogs’ leading scorer this season, celebrated his his senior night midway through the third period with Stone Bridge’s eighth and final goal — his 18th of the season.

“It feels great, especially your senior year, it feels awesome,” Mack said. “Especially with the score, too, I can say I ended beating Broad Run four years in a row. In any sport, it’s kind of hard to say that.”

The Bulldogs also got one goal each from Tanner Cochran, Luke Giroux and Cade Groton, a freshman. Danny Haurin and Taylor Rook scored for Broad Run (5-3-1).

Stone Bridge goalie Martin Trivieri backed his team’s scoring surge with a nearly flawless night, allowing goals by Haurin in the first period when his team was already up by three and Rook late in the third period long after the game had been decided. The junior made several impressive stops, including a glove save on a Broad Run breakaway in the first period and a second-period kick save that blocked an otherwise open net.

The win capped an undefeated regular season for the Bulldogs, who will begin their run for a third straight Northern Virginia Scholastic Hockey League title later this month. Stone Bridge did not face fellow division leaders No. 8 Woobridge and No. 10 Langley, along with 2012 state finalist No. 7 Briar Woods during the regular season, but Friday’s crosstown rivalry revved the Bulldogs up for another playoff run.

“It was pretty nerve-racking, a little shaky legs and definitely a little hyped up before the game, but once I got out there in that first shift I got my legs under me and I was good to go,” Groton said of his first taste of the Stone Bridge-Broad Run rivalry. “It’s awesome. It’s definitely one of the best experiences I’ve ever had. I really looked forward to it, and all day school was pretty much a blank to me.”