Baltimore ? Their spot in the playoffs is assured, yet home-field advantage is still up for grabs.

So the New York Yankees aren’t letting up. Not even a little bit.

Bernie Williams got his 100th RBI, Derek Jeter homered and Andy Pettitte won his fifth straight start as New York beat the Baltimore Orioles 6-2 Friday.

Jason Giambi had three hits and collected his 119th RBI to help the Yankees maintain their slim lead over Oakland for best record in the AL and home-field advantage in the playoffs.

“We’re still going hard,” said Pettitte, who threw five shutout innings. “There is a lot to play for; we haven’t clinched anything yet. We’re trying to win out the season.”

It was the 10th straight loss for the Orioles, who are 4-30 since Aug. 23. Baltimore avoided its 16th shutout of the season when Jay Gibbons hit an RBI double in a two-run ninth off Steve Karsay.

Sidney Ponson (7-9) allowed two runs in seven-plus innings, but absorbed his fourth straight loss. Baltimore scored three runs in his final four starts.

In his final start before the playoffs, Pettitte (13-5) allowed three hits and two walks. He struck out five.

Yankees manager Joe Torre said before the game that Pettitte would go five innings. The left-hander threw only 70 pitches, but improved to 9-1 in his last 11 starts.

“He gave us what we needed,” Torre said. “That was a nice little tuneup.”

Orlando Hernandez pitched two innings, and Mariano Rivera and Karsay threw an inning apiece.

With two outs in the sixth inning of a scoreless game, Giambi singled on an 0-2 pitch from Ponson. He then advanced on a wild pitch and scored when Williams bounced a single up the middle.

Williams, Giambi and Alfonso Soriano all have at least 100 RBIs and 100 runs scored.

Twins 3, White Sox 1

Minneapolis Corey Koskie’s two-run homer in the bottom of the eighth lifted Minnesota. Tony Fiore (10-3) pitched two scoreless innings for the win, and Eddie Guardado worked the ninth for his 44th save in 50 opportunities.

Athletics 3, Rangers 2

Arlington, Texas Mark Mulder (19-7) pitched seven shutout innings. Billy Koch worked the ninth for his 44th save in 50 opportunities.

Ray Durham doubled on the first pitch thrown by Chan Ho Park (9-8) and Mark Ellis reached on an infield single.

With their 101st win, the Athletics remained a half-game behind the Yankees for a chance at home-field advantage through the AL playoffs.

Red Sox 6, Devil Rays 1

Boston John Burkett (13-8) pitched eight strong innings and Brian Daubach and Nomar Garciaparra drove in two runs each as Boston beat Tampa Bay

Blue Jays 5, Tigers 2

Toronto Rookie Pete Walker (10-5) went seven innings for his 10th win.

Dave Berg and Tom Wilson each had three hits and two RBIs for the Blue Jays.