Ryan Dempster pitched eight innings, his longest outing in more than two months and his best since being traded to Texas, and the AL West-leading Rangers beat the surprising Baltimore Orioles 5-1 on Monday night.
Dempster (2-1 in Texas, 7-6 overall) retired the last 11 batters he faced. The right-hander acquired from the Chicago Cubs on July 31 allowed one run and four hits.
David Murphy had two RBI singles for the Rangers, who opened a 10-game homestand. All nine Texas starters had a hit.
Miguel Gonzalez (5-3), who had won his previous three decisions, gave up four runs in five innings.
The Orioles have still won 11 of their last 16 games.