Richard Montgomery running back Ty Hebron, pictured earlier this season, played a massive part in the Rockets’ semifinal win over Northwest. (Eric Goldwein/The Washington Post)

Quarterback Spencer Silverstein sneaked it past the first-down marker, and had he stopped there, it likely have been enough for Richard Montgomery to run out the clock and begin the celebration of its Maryland 4A West region semifinal win against Northwest.

But junior Adam Tounkara wanted to give the offense one final push. With Silverstein wrapped up, the 6-foot-2, 270-pound lineman charged ahead full-speed and shoved his teammate into the end zone for the game-clinching score as the Rockets defeated the Jaguars, 28-13, for their first postseason victory since 2001.

“In the trenches all the time, and we’re working,” said Tounkara, the unit’s lone returning starter. “We’re doing stuff that a lot of people won’t do.”

The Rockets’ offensive line calls itself the ‘Crunch Bunch,’ and it proved worthy of the nickname Friday night in Rockville, clearing lanes for senior running back Ty Hebron and buying Silverstein time in the pocket.

Tounkara and Nic Wissinger are the lone starting juniors, left guard Abubakar Audu and right tackle Kianoush Afshar are sophomores, and freshman right guard Shazali Audu — Abubakar’s brother — just turned 14 earlier this month.

The Rockets (10-1) were considered the underdogs against the Jaguars (7-4), who won the region last years and state titles in 2013 and 2014. Richard Montgomery lost to Northwest, 46-13, in the regular season meeting and fell 33-21 in last year’s opening round of the playoffs.

“We went into this game with the mindset that we had to be mistake-free and correct what we did,” Wissinger said. “We had to communicate better across the board. To ourselves, to the people next to us.”

Richard Montgomery played like the favorites on their home field Friday. Hebron rushed for 289 yards on 31 carries with three touchdowns, including a 75-yard score in the second quarter and a 61-yard score that extended the Rockets’ lead to 21-13 in the second half.

“There was a special kind of violence about him, something extra on Friday night,” Rockets Coach Josh Klotz said.

Northwest had a chance to tie midway through the fourth quarter when it drove the ball deep into Richard Montgomery territory. But a fumble on the play was recovered by senior Xzavier Blackmone on the 1-yard line, and after regaining possession, the Rockets handed the ball to Hebron and drained the clock.

On the final play, Hebron faked catching a toss to the left to distract the defense, then watched Silverstein and the offensive line go to work one final time before next week’s game against Quince Orchard. He thought the play was over, and was ready to line up for the next snap and “punch this thing in.”

“Then Adam just comes out of nowhere,” Hebron said. “I was just jumping up and down, so happy. I was tearing up because we finally got these guys.”

Host B.J. Koubaroulis reveals the top plays from the week of football in the DMV area. (Video by Nick Plum for Synthesis/Koubaroulis LLC./The Washington Post)
The Big number: 711

Days since Damascus’s last loss. After falling to Franklin in the 2014 Maryland 3A state finals, the defending state champion and No. 3 Swarmin’ Hornets (11-0) have since won 25 consecutive games, including Friday’s 21-7 victory over Linanore in the Maryland 3A West region semifinals.

Montgomery County player of the week

RB Ty Hebron, Richard Montgomery, Sr.

In addition to the big rushing game (289 yards, three touchdowns), Hebron registered 10 tackles (two for loss) and had three punts inside the 20-yard line. On the season, he has rushed for 2,185 yards and 28 touchdowns.