Anthony Swarzak (2-4) picked up the win, allowing a hit and one walk in 2-2/3 innings of relief. Alex Burnett allowed only one walk in 1-1/3 innings and Glen Perkins pitched the ninth for his third save in five chances in place of injured closer Matt Capps.
MARINERS 6, ORIOLES 3
In Seattle, Casper Wells hit a go-ahead, three-run double with two out in the seventh inning as Seattle beat Baltimore.
Miguel Olivo and Dustin Ackley added back-to-back homers in the eighth as the Mariners rallied for the win in their first game of the season against Baltimore.
Wells had a couple of scoring chances earlier in the game and failed to drive in any runners. He came up in the eighth and drove an 0-1 pitch from Jason Hammel (8-4) into the gap in right-center. Ackley, Munenori Kawasaki and Ichiro Suzuki all scampered home to give Seattle a 4-3 lead.
ATHLETICS 6, RED SOX 1
In Oakland, California, Josh Reddick and Brandon Moss homered against their former team to send Daisuke Matsuzaka to an early exit and lead Oakland to a victory over Boston.
Jarrod Parker (5-3) was the beneficiary of the home runs, allowing one run and six hits in 6-2/3 innings to get the win.
Parker allowed one run or fewer for 10th time in 14 career starts. He is the first pitcher since Ferdie Schupp of the New York Giants to do that in his first 14 starts, although Schupp was a spot starter who pitched mostly in relief when he did it from 1913-1917.
Matsuzaka (0-3) was knocked out before retiring a batter in the second inning.
AP, ST LOUIS, MISSOURI
Allen Craig hit a pair of home runs and Carlos Beltran extended his RBI streak to a major league-high nine games, helping Kyle Lohse and the St Louis Cardinals beat the Colorado Rockies 9-3 on Monday.
Matt Holliday homered and drove in two runs for the Cardinals, who punished a pitching staff that entered with a major league-worst 5.37 ERA.
Tyler Colvin and Wilin Rosario homered for the Rockies, who have dropped five of seven. Rosario homered for the third straight game, but Colorado pitchers totaled four wild pitches, eight walks and an error that allowed a run. Tyler Chatwood (1-1) got the loss.
REDS 8, DODGERS 2
In Los Angeles, rookies Devin Mesoraco and Todd Frazier had three RBIs each, leading Cincinnati to the victory.
Homer Bailey (6-6) allowed two runs and five hits in eight innings for NL Central-leading Cincinnati, which played without injured sluggers Joey Votto and Scott Rolen. He struck out seven and walked one.
Chad Billingsley (4-8) lost his fourth straight start, giving up three runs and six hits in six innings with eight strikeouts and no walks.
BREWERS 6, MARLINS 5
In Milwaukee, Wisconsin, pinch-hitter Norichika Aoki drove in the go-ahead run with a safety squeeze in the eighth inning, lifting Milwaukee over Florida.
Rickie Weeks sparked the winning rally with a leadoff double. He moved up on Martin Maldonado’s single to right and scored when Aoki greeted Randy Choate with a bunt single that gave Milwaukee a 6-5 lead.
Justin Ruggiano hit a two-run homer and finished with a career-high four RBIs for Miami, which committed three errors that led to two unearned runs. Ryan Webb (3-2) got the loss.
CUBS 4, BRAVES 1
In Atlanta, Georgia, Jeff Samardzija had a career-high 11 strikeouts and Luis Valbuena hit a tiebreaking three-run double in the seventh as Chicago earned its fourth consecutive win.