NASHUA — The latest chapter of the most high-profile rivalry in NHIAA boys' lacrosse was one-sided from the start.

Three-peat-seeking Bishop Guertin unleashed its full arsenal on Pinkerton Academy Monday at Stellos Stadium. The Nashua squad won faceoffs, peppered the cage in settled play, forced turnovers that led to transition scores and coasted to a 15-4 Division I win over its Derry rival.

“We came out focused today. We really wanted this game,” BG close defender and University of Massachusetts recruit Bob Fahey said after the game, which was scouted by college coaches from Hartford and Holy Cross. “We really wanted to put an 11-spot on them.”

Guertin (13-2 overall, 9-1 Div. I) speed and size advantages, particularly on defense, were obvious. Fahey and fellow UMass recruit Kyle Karaska rarely allowed Astros attackmen near the net.

Of course, that's when Pinkerton (10-4, 8-3) possessed the ball. The opening five minutes were almost exclusively played in Pinkerton's end. Cardinals John Miller, Tommy Vailas and Hunter Allen staked their team to a 3-0 lead before J.D. Dudek fired the Astros' first shot.

Goaltender Pearce Connal (eight saves) played extremely well for the Astros. But the stopper, much like the defenders in front of him, couldn't keep up with Cardinals. They built a 5-1 halftime lead, and coach Chris Cameron said he felt the offense missed on several opportunities.

“Not good. Not what I was hoping for, expecting. We were dominated in all phases of the game,” said Pinkerton coach Brian O'Reilly, whose team entered on a five-game win streak.

Casey Burnett (three goals, two assists) was a killer around the crease. The senior attackman was among nine Cardinals to crack the scoring column. Burnett used an ankle-breaking dodge at the right post to create shooting space for his second goal, which gave Guertin a 7-1 third-quarter cushion.

It was also the second of Guertin's six goals in the frame.

Burnett fueled a four-goal run to open the second half, scoring twice during a spurt that featured markers from midfielders Colin Swanson and Johnny Karanasios.

Dom Corsetto briefly stopped the run with one of Pinkerton's few point-blank shots on rarely tested Colin Delea (six saves). Corsetto also assisted on Dudek's first-quarter tally and Evan Sweeney's extra-man goal in the closing seconds of the third.

By the time Sweeney struck, however, the game was well in hand. Guertin owned an 11-4 lead entering the fourth quarter.

“Pinkerton is well-coached. They're always motivated, organized,” Cameron said. “We were going to get their best shot. We knew that. But they got ours.”