SAN DIEGO (AP) _ Preston Wilson hit a two-run homer and an RBI double, and pitcher Ryan Dempster doubled and scored as the Florida Marlins beat the San Diego Padres 5-2 Monday night to stop a five-game losing streak.

Wilson's homer was the 10th given up by right-hander Woody Williams, tying him with Houston's Jose Lima for the most allowed in the majors.

The Padres have given up 27 runs on 10 homers in their last six games, four of them by Williams. He allowed three homers in his previous start, including a grand slam, but didn't figure in the decision in a 9-8 loss at Pittsburgh.

The Padres, swept by the Atlanta Braves during the weekend, are on their first four-game losing streak of the season and have lost six of their last seven.

With Dave Berg aboard on a single, Wilson homered to right with two outs in the first, his third. After the Padres pulled to 3-2 in the eighth, Wilson doubled in Cliff Floyd in the ninth. Floyd scored on Derrek Lee's single, which chased Williams (3-2).

With the Marlins leading 3-1 in the eighth, Dempster (2-2) was chased by consecutive one-out singles by Dave Magadan and Eric Owens. Ryan Klesko singled to right off Vic Darensbourg, just the second hit by a left-hander in 16 at-bats against the lefty reliever, to score Dave Newhan pinch-running for Magadan. Right fielder Mark Kotsay threw out Owens at third on a close play.

Dempster held the Padres to seven hits and two runs in 7 1-3 innings. He struck out eight and walked two. Williams allowed five runs and nine hits in 8 1-3 innings, the longest outing by a Padres pitcher this year. He struck out five and walked none.

Antonio Alfonseca pitched the ninth for his ninth save.

Dempster doubled leading off the sixth for his first hit of the year, took third on Kotsay's groundout and scored on Floyd's single to right for a 3-1 lead. Until that at-bat, Dempster had been 5-for-74 (.068) lifetime.

Williams doubled and scored on Owens' double in the third.

Notes: Owens crashed into the fence in center after catching Lee's fly ball in the seventh, hitting his right side against a padded upright. Owens started to throw the ball back in, but pulled back, apparently in pain, and flipped the ball to RF Kory DeHaan to throw in. Owens stayed in the game. ... The Padres started retooling their shaky bullpen on Monday by optioning right-hander Will Cunnane to Triple-A Las Vegas and recalling right-hander Buddy Carlyle. The Padres hope to have RHP Donne Wall (tendinitis) available by Tuesday night, and will activate RHP Rodney Myers on Friday if his rehab assignment at Class A Rancho Cucamonga goes well. ... Dempster didn't factor in the decision in his last two starts despite allowing just three earned runs over 13 2-3 innings. Both games went extra innings, with the Marlins beating Pittsburgh and losing to San Francisco.