CONCORD -- At 6-foot, 225-pounds, Chris Williams doesn't exactly look like a high school quarterback when he's dragging defenders with him into the end zone.
But there's no arguing with his results for one of the nation's premier teams.
With Williams under center, De La Salle is 29-0 over the past two seasons. If he can lead the Spartans past St. John Bosco-Bellflower in Saturday's CIF Open Division state championship in Carson, he would become the first De La Salle quarterback to go undefeated in at least two full seasons since the program's 151-game winning streak ended at the start of the 2004 campaign.
Not bad considering Williams' high school football career began as a defensive tackle and linebacker for De La Salle's freshman team. He was a lineman for much of youth football and didn't take a snap until eighth grade.
"It's been a really big accomplishment," Williams, a senior, said of his varsity career in which he's passed for 2,677 yards, rushed for 846 and accounted for 52 touchdowns. "Freshman year I didn't think I'd ever be in the situation I am today. I had to put in a lot of work to get here, and I'm proud of it."
The lefty can sling it when called upon but has been trusted to run the offense just as much for his calm demeanor. Plus, he can run the ball like a fullback.
"He's got a toughness about him that we like," De La Salle coach Justin Alumbaugh said. "He doesn't get too flustered."
De La Salle's offense has been nearly unstoppable this year, averaging over 450 yards per game. In the veer, that doesn't happen without the quarterback making the right reads.
Williams' junior season started out rocky with turnovers and some poor decisions. But Alumbaugh calls his improvement since then "pretty dramatic."
"He doesn't get enough credit for how well our offense is doing," Alumbaugh said. "There's areas that he can improve on, but there's areas that all our guys can improve on."
Williams wasn't always destined to be De La Salle's starting quarterback.
The youngest brother of former Spartans wide receiver standouts Demetrius and Anthony Williams, Chris said he didn't take football seriously enough when he started at De La Salle.
His wake-up call came during a meeting with the coaches during his sophomore year.
"They kind of have that heart to heart with every athlete here," Williams said. "They say you're not going to achieve what you want to achieve unless you put in the work. I took it seriously and I changed. I changed my whole body over, and I changed my attitude and the way I approach things."
He's now a team captain, can bench press 315 pounds and also launches home runs for the Spartans' baseball team as a first baseman and outfielder. That's part of why his childhood nickname, Bopper, has lived on at De La Salle.
Williams has an offer to play football at Montana and baseball at Fresno State. He isn't sure which route he'll take.
"It's going to be a really hard decision," he said.
Since Saturday might be the last time he ever throws or runs for a touchdown, Williams plans to make the most of the opportunity.
The Spartans will need his best effort against a stout Bosco defense. Not only will he need to manage the game, but his arm also could be the difference.
"I haven't pulled any punches with him either," Alumbaugh said. "He's going to have to play really well."
Follow Stephanie Hammon on Twitter at twitter.com/stephhammon.
State championship games
ALL GAMES AT STUBHUB
Division IV: Central Catholic-Modesto (14-1) vs. Bakersfield Christian (12-2), 4 p.m. CSNBA
Division I: Del Oro-Loomis (13-2) vs. Bakersfield (12-2), 8 p.m. CSNBA
Division III: Sacred Heart Prep-Atherton (13-1) vs. Corona del Mar-Newport Beach (15-0), noon CSNCA
Division II: Enterprise-Redding (13-0) vs. Chaminade-Los Angeles (13-2), 4 p.m. CSNCA and CSN-Plus
Open: De La Salle (14-0) vs. St. John Bosco-Bellflower (15-0), 8 p.m. CSN-Plus