SEATTLE — The Seahawks swarmed Alex Smith. They gouged Frank Gore. They tied records for stinginess.

Then again, those records came against the NFL's worst-ranked offense.

Seattle held the San Francisco to six first downs, leaving ample opportunity for Matt Hasselbeck to enjoy fulfilling coach Mike Holmgren's promise of more throws with two touchdown passes as the Seahawks beat the inert 49ers 24-0 Monday night.

The shutout kept the Seahawks (5-4) ahead of Arizona (4-5) in an NFC West that has been awful. Most awful: the Rams (1-8) and the 49ers (2-7), who lost for the seventh consecutive time.

"The shutout was huge," Seattle linebacker Lofa Tatupu said. "This is the NFL. They get paid a lot of money to move the ball."

That money is going to waste faster than cash inside a casino.

The Seahawks tied their team record for fewest first downs allowed, set against San Diego in 1987. San Francisco matched its fewest first downs since 1963 — for the second time in less than a month.

So much for the 49ers ending the Seahawks' three-year reign of the division. Seattle swept the season series, outscoring San Francisco 47-3.

The 49ers squandered three drives that started inside Seattle's 41-yard line. They didn't get a first down and had just 31 yards until Arnaz Battle caught a 45-yard pass at the Seattle 11 on the last play of the first half.

Alex Smith, the $49.5 million quarterback, was sacked three times. The NFL's lowest-rated passer lost fumbles on two of them.

Hasselbeck completed 27 of 40 passes for 278 yards, including a 1-yard touchdown throw to Will Heller that ended Seattle's first drive and a 10-yard scoring pass to D.J. Hackett on the first play of the fourth quarter.

Patrick Kerney rushed untouched and hit Smith from behind to force a fumble that Rocky Bernard recovered at the San Francisco 21 midway through the first quarter. That became a 20-yard field goal by Josh Brown.

And Maurice Morris, playing while injured Shaun Alexander missed his first game, ran 6 yards for another score 10 minutes into the second quarter.

At that point, Seattle led in total yards 220-32.