BALTIMORE (AP) -- The Los Angeles Angels ' shaky playoff hopes took another blow Saturday night when Ervin Santana yielded five first-inning runs in a 6-2 loss to the Baltimore Orioles .
Desperately needing a win to stay within striking distance of first-place Texas in the AL West and Boston in the wild-card chase, Los Angeles fell flat for the second night in a row against the last-place Orioles.
The Angels fell 4 1/2 games behind Texas in the division race after the Rangers beat Seattle 7-6. Los Angeles trails the Red Sox by five games. The Angels have lost four of six and have only 11 games left.
Orioles rookie Zach Britton (10-10) allowed one run and three hits in seven innings, walked two and had a career-high seven strikeouts.
Pedro Strop worked the eighth and Jim Johnson gave up a two-out RBI triple to Vernon Wells in the ninth.
J.J. Hardy hit his career-high 27th homer and Mark Reynolds hit No. 34 in the first inning for the Orioles, who have won four straight.
Santana (11-12) settled down after the first inning, but the damage was done. The right-hander gave up five runs and five hits over seven innings and lost his third consecutive start. He was 5-0 in his previous five road starts.
Santana was dangerously wild. He walked three and hit two batters with pitches, including Reynolds, who was plunked in the helmet with a fastball in the third inning. Reynolds insisted upon remaining in the game, but was removed in the top of the fifth.
Baltimore sent 10 batters to the plate in the first inning and scored twice before Santana got an out.
After Matt Angle drew a leadoff walk, Hardy drove a 3-2 pitch over the left-field wall. One out later, Vladimir Guerrero singled and Matt Wieters walked before Reynolds homered with two outs on an 0-2 pitch.
The Angels, meanwhile, didn't get their first hit until Mike Trout singled with one out in the fifth. Erick Aybar followed with a single and Bobby Wilson hit a sacrifice fly.
Mark Trumbo led off the seventh with a single and advanced to third with two outs before Aybar grounded out.
Baltimore made it 6-1 in the eighth against Garrett Richards . Wieters walked on four pitches and scored when Trout bobbled Chris Davis ' double to right.
NOTES: The start of the game was delayed 14 minutes after home plate umpire Brian O'Nora was struck by a ricocheting warmup pitch from Britton. The fallen umpire was helped off by Orioles athletic trainers. Second base umpire Alfonzo Marquez moved behind the plate and the game was played with three umps. ... An MRI performed Saturday on Orioles OF Adam Jones revealed a sprained right thumb. "I'm fine, basically. Just tough it out," said Jones, who missed his seventh straight start because of the injury. "I've never really had this before. It's new to me." ... Right-hander Jered Weaver will start Sunday for the Angels on three days rest, manager Mike Scioscia said. ... Orioles manager Buck Showalter said left-hander Brian Matusz would start one of the games in Monday's doubleheader at Boston.