With his team trailing by a single point and the final 45 seconds ticking off the clock Friday night at Broad Run, Briar Woods quarterback Trace McSorley turned to his coach on the sideline and screamed, “I want a touchdown!”

A field goal would have done the trick for the No. 12 Falcons against their Ashburn rival, but on a night full of flags and fumbles, McSorley didn’t want to take any chances.

So the junior quarterback stuck the ball in the gut of his running back, and Cory Colder took care of the rest, powering around right tackle Jared Coker and into the end zone with 24.6 seconds left to give Briar Woods a gritty 20-15 victory.

The win avenged the Falcons’ lone loss of the 2012 season and ran their string of consecutive victories to 16, tops in the area.

“I want to seal it. I don’t want to leave anything to chance — a hold, they block the kick,” McSorley said. “I wanted points.”

Broad Run (1-1) stunned the two-time defending Virginia AA Division 4 champion when sophomore quarterback Brady Reitzel hit a streaking Dorian Jenkins for a 68-yard touchdown pass only 62 seconds into the contest. After Colder was stripped of the ball on Briar Woods’s ensuing drive, the Spartans extended their lead to 15-0 with senior Da’Qwan Earl’s two-yard touchdown run.

But Colder, who was benched for the first half of the first quarter, made up for his miscue by capping a 14-play, 80-yard touchdown drive with a six-yard run that pulled the Falcons (2-0) to within 15-8 at the half.

Broad Run milked eight minutes off the clock with a lengthy drive, extended by a roughing the kicker penalty on Briar Woods, and when the Falcons finally got the ball back, consecutive holding calls left them facing second-and-29 from their own 18.

But McSorley lofted a deep ball to his favorite target, senior tight end Cam Serigne (Wake Forest), who out-jumped his defender for a 38-yard completion. McSorley scored on a one-yard keeper with 4:44 left but instead of going for the tie, the Falcons went for two and failed to convert.

Broad Run failed to get a first down on its next possession, and McSorley hit Brandon Polk to set up three consecutive Colder runs — the third ending in the end zone.

“I had to come out with a vengeance, because I knew my team needed me,” said Colder, who finished with 149 yards on 28 carries. “We always find a way, we never give up.”

Briar Woods played without linebacker Matt Rolin (South Carolina), who was sidelined with a sprained ankle.