Taylor Carpentier was upset, feeling as if she had shirked her obligations at a crucial time and let everyone down.

Not the Garden City girls lacrosse team, but her family. They were in North Carolina this weekend for her brother A.J.'s college graduation. Carpentier struggled with the decision but chose to stay with her team.

"I felt guilty at first," the Trojans goalie said. "My dad was joking like, 'Yeah, come. It's only St. Anthony's. No big deal.' "

It's kind of a big deal. And the decision was validated.

There were no caps and gowns, but plenty of pomp and circumstance as a large crowd watched Garden City beat St. Anthony's, 14-9, in non-league.

"This," Carpentier said, "kind of makes up for it."

advertisement | advertise on newsday

Haley O'Hanlon scored five goals and Michaela Bruno had two goals and three assists as the Trojans (10-3) earned their first win over the Friars since 2011.

"Coming off two losses, we had something to prove," said Tara DeAngelo, who scored twice. "We know they're great, but we couldn't lose three straight, no matter who it was. We have a lot of pride."

They stunned a St. Anthony's team that, a week ago, was ranked fifth in the country. The Friars (10-2) lost to Sacred Heart on Monday, defeated by a Long Island team for the first time since falling to Garden City three years ago.

The "underdog" Trojans dominated a 20-minute stretch, beginning midway through the first half. Katie Muldoon (three goals) gave them a 12-3 lead with 20:29 remaining. For perspective: In the teams' 2012 meeting, the Friars had a 12-2 lead on Garden City. "My sister [Alexandra] was on that team and I remember how upset she was," Bruno said with a grin. "This one's for her."

The Friars pulled within 13-6, but defender Kristen Adams forced a turnover near the 40, then outran the pursuit and scored with 13:20 left. Carpentier made eight saves.

"We were intense from warm-ups, which was foreshadowing for how we'd play," O'Hanlon said. "It's awesome to finally be on the other side [of the coin] against them."

Adams, Melanie McHugh and Morgayne Rix contained superstars Izzy Mangan (two goals) and Kasey Behr (one). Katie O'Neill had three goals for St. Anthony's.

"Our adrenaline was pumping the whole way," Adams said. "This is a huge accomplishment and the feeling of pride right now is hard to describe."

Sort of like graduation day.