Steve Pearce homered and scored twice to help Wei-Yin Chen earn his ninth victory, and the Baltimore Orioles beat the Washington Nationals 4-3 on Thursday night for their eighth win in 10 games.
Adam Jones and Nelson Cruz both drove in a run for the Orioles, who built a 4-0 lead in the third inning and held on. Baltimore took two of three from the Nationals in this rain-shortened, home-and-home interleague showdown between division leaders.
Jayson Werth homered for Washington and Ryan Zimmerman had two hits and an RBI.
Chen (9-3) gave up three runs and eight hits in 5 2-3 innings, walking none and striking out six. The Taiwanese left-hander is 6-1 in 12 starts since May 3, and his nine wins are most on the team. He was 0-2 with a 7.71 ERA in his previous two starts against the Nationals.
After Darren O'Day worked out of a bases-loaded jam in the eighth, Zach Britton got three outs for his 15th save, capping his 22nd consecutive scoreless appearance at home by retiring Werth with a runner on first.
Gio Gonzalez (6-5) allowed three earned runs and six hits in 6 2-3 innings. His streak of 22 consecutive scoreless innings ended when Pearce connected in the first.
Gonzalez won his previous three starts without giving up a run and was unbeaten in four starts following a one-month stay on the disabled list with a shoulder injury.
Pearce put the Orioles in front for good with a drive to left on a 2-0 pitch. It was his 11th home run, more than his previous three seasons combined.
Baltimore added three runs in the third after Gonzalez retired the first two batters. After an RBI double by Jones put runners at second and third, Cruz grounded a run-scoring single in the hole that shortstop Ian Desmond gloved before throwing wildly to third, allowing Jones to score.
That ended Washington's 13-game errorless streak, which matched the team's longest run since the franchise moved from Montreal in 2005.
Zimmerman's two-out RBI single made it 4-1 in the fourth, and Washington got runners on the corners with two outs in the fifth before Chen struck out Anthony Rendon on three pitches.
The Nationals closed to 4-3 in the sixth. After Werth homered on an 0-2 pitch — his second long ball in two nights — Zimmerman doubled and Desmond chased Chen with an RBI double off the scoreboard in right field before Tommy Hunter retired Wilson Ramos on a groundout.
Ramos later flied out with the bases full in the eighth.
NOTES: Baltimore optioned RHP Bud Norris to Double-A Bowie and recalled RHP Preston Guilmet from Triple-A Norfolk. Norris pitched Wednesday and won't be needed against until after the All-Star break. ... The Orioles host the New York Yankees in a three-game series before heading into the All-Star break. Miguel Gonzalez (4-5) faces New York's Hiroki Kuroda in the opener Friday night. ... Washington closes the first half with a three-game series in Philadelphia. Jordan Zimmermann will start for the Nationals on Friday night. ... Ramos extended his career-best hitting streak to 13 games, but teammate Bryce Harper went 0 for 3 and is in a 1-for-20 skid over his last six games. ... Orioles pitchers hit two batters, raising their AL-leading total to 43.