• Figure this: Tejada hit his second homer in three games, after going homerless in the previous 25 games.
• Unsung hero: Starter Brian Burres gave up just one run and three hits in a six-inning stint.
• Figure this: Nick Swisher hit his eighth homer of the season and his fourth off Baltimore.
-- ESPN.com news services
Orioles 8, Athletics 3
BALTIMORE (AP) -- For the first time in two weeks, the Baltimore Orioles experienced the pleasure of a blowout victory.
Ten of Baltimore's previous 11 games were decided by two runs or fewer; the exception was a 5-2 win over Toronto. The Orioles were 3-8 over that span.
"I don't think a manager ever gets real comfortable. I think you're always looking for what-ifs," manager Sam Perlozzo said. "But it was nice to see our guys swing the bats like we thought we were capable of. We had a lot of two-out hits, which is another good sign. It's a start, hopefully something we can build on."
Tejada put the Orioles ahead for good with a two-run homer in the first inning off Joe Kennedy. He has two home runs in three games after opening the season with two homers in his 46 games.
Roberts singled and scored in the first inning, hit an RBI single in the second and singled in two runs in a four-run fifth that made it 8-1.
"There have been a lot of one-run games, two-run games, it's been crazy," Roberts said. "It was nice to have a little breathing room."
Brian Burres (2-2) allowed one run and three hits in six innings. Pitching with 10 days' rest, the left-hander struck out four and walked three in earning his second major league win.
Oakland starter Joe Kennedy (1-4) allowed seven runs, eight hits and five walks in 4 2/3 innings to raise his ERA from 2.70 to 3.62.
"Joe's just a guy. I admire the courage he showed," A's manager Bob Geren said. "He didn't really have a real good feel, but he kept battling and got himself out a lot of jams. He actually pitched his heart out."
Although the Orioles treated the game like a runaway, Geren saw it differently. He liked the fact that Oakland scored a ninth-inning run off Danys Baez and had two runners on before Swisher popped out.
"It really got interesting the last couple of innings. We were one big swing away from making it a close ballgame," Geren said.
That put the lid on the Orioles' most prolific offensive showing since they scored 11 against Tampa Bay on May 10.
Patterson, who batted eighth, scored three runs and Payton, the No. 9 hitter, went 3-for-3.
"What we saw tonight is what we need: contributions for different areas in the lineup," Perlozzo said.
Buck got Oakland to 8-2 with his fifth homer off John Parrish in the seventh.
Burres retired the first 10 batters before Swisher drove a 2-1 pitch into the left-field seats in the fourth. Half of Swisher's eight home runs this season have come in four games against the Orioles.
"I like this park. It's a good ballpark to hit in," Swisher said. "It's probably just luck. Plus, it's close to home, too," Swisher, a West Virginia native, said.
In the bottom of the fourth, Baltimore loaded the bases with no outs and went up 4-1 when Gomez hit into a fielder's choice.
The A's filled the bases with one out in the fifth before Shannon Stewart bounced into a 6-4-3 double play, Oakland's AL-high 52nd of the season.
Eric Chavez returned to the Oakland lineup after missing three games with tendinitis in his triceps. He went 0-for-4 and has only one hit in his past 17 at-bats. ... Hernandez walked twice before snapping a 1-for-16 skid with a seventh-inning single. ... Oakland fell to 11-8 in games started by left-handers.