ARLINGTON, Texas -- Spot starter John Wasdin was the beneficiary of a power display by the Texas Rangers.
David Dellucci hit a grand slam, Mark Teixeira reached the 30-homer mark for the second straight season and the Rangers beat Baltimore 10-3 on Saturday, the Orioles' first loss under interim manager Sam Perlozzo.
Hank Blalock also homered for Texas, and Wasdin (1-1) gave the Rangers' rotation a lift, pitching into the seventh inning.
"We'd like that type of performance every night," Teixeira said of Wasdin's timely effort. "That takes pressure off the offense. He did a great job."
Wasdin, who wasn't officially told he was making his fifth start of the season until Friday night, allowed two runs and six hits, striking out three and walking two.
Wasdin is used to filling a utility role. Of his 290 career appearances, 231 have been out of the bullpen.
"That's the type of pitcher I am," Wasdin said. "I'm used to the pen. I embrace that role. I want the ball whenever it comes."
Texas, which had only two wins from its starters in the last 24 games, had lost eight of the previous nine at home.
But the Rangers' offense kicked into gear early, and Texas put up double-digit runs for the 12th time this season.
"This offense is capable of putting up big numbers," Dellucci said. "I've never lost confidence in our ability to score runs."
Perlozzo had won both games since replacing the fired Lee Mazzilli on Thursday.
For Perlozzo, the best part of Saturday was that his team didn't quit despite the lopsided score and a late-inning downpour.
"The effort was there into the ninth," Perlozzo said. "They kept trying. We had guys cheering on the bench."
Orioles starter Daniel Cabrera (8-10) struck out the side in the first with a fastball clocked in the high 90s, but the right-hander gave up two singles to start the second and seemed to lose his focus.
Cabrera walked the next three batters, including Gary Matthews Jr. and Sandy Alomar with the bases loaded. Then he served up the home run ball to Dellucci on a full count and Texas led 6-0. It was Dellucci's second career grand slam and his 19th homer of the season.
Wasdin retired the first 10 batters he faced until Eric Byrnes hit a one-out double in the fourth. Javy Lopez drove in Byrnes with a two-out single to make it 6-1.
After Cabrera issued his fifth walk of the game in the fourth, Teixeira's two-run homer pushed the Rangers' lead to 8-1 and knocked out Cabrera.
"The first inning was good," Cabrera said. "Everything felt right. The next inning, I gave up two base hits and that's when the problem started. My problem was walks. I was trying to make the perfect pitch."
Blalock greeted reliever Chris Ray with his 23rd homer, and another run scored later in the fourth on second baseman Brian Roberts' error, making it 10-1.
Cabrera allowed eight runs and five hits in 3 2/3 innings with seven strikeouts.
David Newhan, who drove in a run in the seventh with a single, added a solo homer in the ninth off Kameron Loe, who went three innings for his first major-league save.
Newhan's homer, an impressive 422-foot blast into the right-center field bleachers, came in the midst of a driving rain that created soggy field conditions during the final inning.
"The Lord parted the rain like the Red Sea for me," Newhan said. "I wasn't going to give away an at-bat. I tried to hit a strike and got a good pitch to hit."
Teixeira is the fifth Ranger with multiple 30-homer seasons. He hit 38 last year. The others are Juan Gonzalez and Rafael Palmeiro (six each), Alex Rodriguez (three) and Dean Palmer (two). ... Texas had back-to-back homers for the eighth time this season. ... With lightning flashing in the sky nearby, fans were ordered to leave the upper deck in the seventh and sit in the lower seating bowl. Rain began to fall in the eighth as fans scurried for cover but play continued. ... Byrnes has hit safely in all eight games since being acquired from Colorado.