SEATTLE (AP) - Brent Lillibridge now has a Safeco Field memory that goes well beyond the 20 or so Seattle Mariners games he'd attend every summer as a kid.

A game-winning homer trumps nearly everything else.

"You grow up watching games here, 20 games a year, every year as a fan of the Mariners and I'm able to hit one here out of the park against your favorite team, it's something special," Lillibridge said. "I won't forget it."

The White Sox do-everything utility man hit a tiebreaking two-run homer in the fifth inning, Jake Peavy pitched six strong innings for just his second win since late June and the Chicago White Sox beat Seattle 4-2 on Friday night.

Lillibridge, a Seattle area native and former college star across town at Washington, snapped a 2-all tie with his 12th homer deep into the bullpen in left-center field off Seattle starter Charlie Furbush. Lillibridge had struck out in his first two at-bats before taking Furbush (3-6) deep.

White Sox manager Ozzie Guillen has used Lillibridge nearly everywhere this season. He's played all three outfield positions, second base and made his eighth start at first base on Friday night. It's all come without regularity - Friday night was his first start since last Sunday - but along the way, Lillibridge has proved himself invaluable to the White Sox lineup.

Lillibridge's homer was his fifth in the past 15 games and came after he got just one at-bat in Chicago's previous series against the Los Angeles Angels.

The White Sox bullpen didn't make it easy for Peavy to even his record. Matt Thornton took over for Peavy and struck out Ichiro Suzuki and Dustin Ackley in the seventh, but gave up singles to Franklin Gutierrez and Mike Carp. Jesse Crain entered and walked Miguel Olivo to load the bases but got rookie Kyle Seager swinging at strike three in the dirt to end the threat.

Seattle left 11 runners on base.

"We pushed the game offensively but we didn't finish the offense," Seattle manager Eric Wedge said.