BALTIMORE – Barry Bonds hit his 675th homer and capped a four-run 11th inning with an RBI single, leading the San Francisco Giants past the Baltimore Orioles 9-6 on Saturday in the opener of a day-night doubleheader.

The Giants overcame two home runs by Rafael Palmeiro, who moved past Mickey Mantle into 11th place on the career list.

It was only the third time in baseball history that two players with 500 homers connected in the same game. Willie Mays and Ernie Banks did it in 1970, and Mays and Aaron both homered on May 8, 1971.

Bonds’ solo homer off Rodrigo Lopez in the third inning left him 39 short of second-place Babe Ruth and 80 behind career leader Hank Aaron. He went 3-for-6 with two RBIs and two runs scored.

Palmeiro has 537 homers, one more than Mantle. His second homer, a solo shot off Scott Eyre that traveled an estimated 434 feet to dead center, tied it at 5 in the eighth.

Palmeiro came in with a season-long 11-game homerless drought and had only one in his previous 22 games.

A.J. Pierzynski led off the 11th with his fourth homer, a drive to right-center against Jorge Julio (1-2), who allowed only one home run in 22 innings this season. Marquis Grissom added a two-run single, and Bonds chased Julio with a single to left, foiling a shift to the right side by the Baltimore infield.

Matt Herges (2-2), who worked the final three innings and gave up a sacrifice fly to Brian Roberts in the 11th, began his stint by getting out of a bases-loaded, no outs jam in the ninth.

With Bonds serving as the main attraction, the game drew 48,869 fans – the largest crowd of the season and sixth-largest in the 13-year history of Camden Yards. Five of the ballpark’s six biggest crowds were for interleague games.

The Giants took a 5-4 lead with a four-run seventh. After Bonds hit a one-out single and Edgardo Alfonzo homered to left, Lopez was lifted after walking Pierzynski.

Rick Bauer walked Pedro Felix before Damon Minor singled in a run and Neifi Perez hit a run-scoring grounder.

Bonds grounded out in his first at-bat, but put the Giants up 1-0 in the third with his 17th homer, an opposite-field drive to left. It was his 499th home run with the Giants and his first at Camden Yards, the 32nd ballpark in which he has homered.

Baltimore answered with three runs in the bottom half against Dustin Hermanson. After Miguel Tejada drove in a run with a groundout, Palmeiro hit a 1-1 pitch over the right-field scoreboard with a man on.

Larry Bigbie made it 4-1 in the fourth with his seventh homer, the first since May 18.

Notes: Lopez became the 400th pitcher that Bonds has homered against. … It was Palmeiro’s 33rd career two-homer game. He has 38 interleague homers, the most in baseball history. … Giants DH Dustan Mohr went 0-for-5 with four strikeouts.

AP-ES-06-12-04 1915EDT