SEATTLE -- Jarrod Washburn hasn't lost confidence in his new team, the Seattle Mariners.
"We've played pretty good baseball this season and we're capable of playing much better," the veteran left-hander said.
Washburn pitched into the seventh inning and the Mariners beat the Chicago White Sox 5-1 on Wednesday night to hand Mark Buehrle his first loss of the season.
The last-place Mariners took two of three from the first-place White Sox, who came into Seattle with a little bit of swagger after an eight-game winning streak. The one run was a season low for the defending World Series champions.
"I expected us to play well and to win ballgames," said Washburn, who has a 3.51 ERA in five starts in his first season with the Mariners after signing a $37.5 million, four-year contract with the team in December. "I don't think our record is indicative of how good we are.
"There's a lot of baseball to be played," he said. "I don't think anybody in here is panicking."
Bouncing back after a 13-3 loss to the White Sox on Tuesday night in which Chicago homered five times, the Mariners gave Washburn (2-3) all the runs he needed in a three-run second inning.
"That's good," he said. "Any time you go against a guy like Buehrle and get three runs right away, it's nice."
Washburn was taken out of the game in the seventh, when the White Sox scored their only run off him. In 6 2/3 innings, he gave up four hits, all singles, and a walk with four strikeouts.
Buehrle (3-1) came into the game with a 1.93 ERA in four starts, a total of 28 innings. He went 2-0 against Seattle last season, allowing two earned runs in 16 innings.
But the Mariners got to Buehrle for four runs and seven hits in seven innings in their first matchup this year.
Richie Sexson and Carl Everett opened the second with singles and Kenji Johjima was hit by a pitch by Buehrle to load the bases. Adrian Beltre, dropped to seventh place in the batting order from sixth, then drove in a run with an infield out. It was his fifth RBI of the season, all in Seattle's nine-game homestand.
Jose Lopez then hit a 2-2 changeup by Buehrle to right field for a two-run double.
"If he pitches it outside, I try to hit it to right field," Lopez said. "This year, I hit it to right field. Last year, I try to pull the ball a lot. Tonight, I hit it good to right field."
Buehrle gave Lopez credit for hitting a mistake pitch.
"I wasn't getting ahead in the count," Buehrle said. "Whenever you are falling behind in the count, you have to lay a pitch in there."
Mariners manager Mike Hargrove likes the way Lopez is maturing this season. He played 54 games with the team last season after playing 57 games with Seattle in 2004.
"There's nothing worse than loading the bases and scoring one run," Hargrove said of the second inning. "Jose is still not a polished player, but he has a chance to become one."
In the sixth, Raul Ibanez gave Seattle a 4-0 lead when he led off the inning by hitting a 3-1 pitch over the left-field fence into the visitor's bullpen for his second homer of the season.
Paul Konerko singled and scored on Juan Uribe's sacrifice fly to cut the Seattle lead to 4-1 in the seventh.
Rafael Soriano followed Washburn with 1 1/3 hitless innings and J.J. Putz pitched a scoreless ninth.
Everett hit a sacrifice fly in the eighth to make it 5-1.
The White Sox outscored the Mariners 17-12 in the series, but still lost their first series after winning four sets in a row.
"It's not how many runs you score in one game, it is how many games you win in a series and we lost the series," Chicago manager Ozzie Guillen said.
Johjima was hit by a pitch for the fifth time this season, tops in the AL. ... The Mariners beat a LHP starter for the first time in seven decisions. ... Buehrle now is 6-4 in his career against Seattle, including 1-3 at Safeco Field. ... Washburn evened his career record to 5-5 against the White Sox. His last win over Chicago came July 7, 2004, at Comiskey Park. ... The Mariners were 3-6 on their homestand.