Darin Peart helped the Stony Brook defense breathe a collective sigh of relief.

Down by three with under four minutes left, William & Mary’s Tommy McKee overthrew his receiver deep over the middle. Peart secured the interception, giving his offense the ball to chew clock.

But William & Mary got the ball back with 53 seconds remaining and drove 40 yards in six plays, aided by two personal fouls against Stony Brook. When McKee attempted to spike the ball to set up an attempt at a game-tying 55-yard field goal with eight seconds left, the Tribe went offsides.

Due to the penalty, 10 seconds ran off the clock, giving Stony Brook a 21-18 win over host William & Mary in a Colonial Athletic Association game Saturday night.

The Seawolves watched a three-touchdown lead evaporate late but held on to improve to 4-1, 3-0 in the Collegiate Athletic Association.

“It gave us a dose of reality,” coach Chuck Priore said. “It’s great to learn from a win.”

Donald Liotine’s 9-yard touchdown run gave Stony Brook a 14-0 lead just before halftime and his 61-yard touchdown reception pushed the lead to 21-0 with 8:16 left in the third quarter before William & Mary (2-2, 0-1) chipped away.

advertisement | advertise on newsday

Kris Hooper made a 34-yard field goal, Nate Evans ran in from 3 yards away and Chris Conlan caught a 21-yard touchdown to bring the game within a field goal.

Stony Brook’s Stacey Bedell led all rushers with 104 yards and a touchdown on 21 carries. Joe Carbone completed 12 of 17 passes for 182 yards and a touchdown.