Detroit, a distant third in the American League's Central Division, got to 20 games over .500 at home this week when it took three of four games from the second-place Chicago White Sox.
Johnny Damon went 4-for-4 with an RBI and two runs scored and Rick Porcello threw eight strong frames as the Tigers handed the White Sox a 6-3 loss to close out a four-game series. Ryan Raburn and Jhonny Peralta each drove in a pair and Will Rhymes had three hits and two runs scored for Detroit, which is 46-26 in front of its fans this season.
Porcello (9-11) won a fourth straight start, scattering four hits and three runs while striking out three and walking none in the win.
Near-perfect game artist Armando Galarraga takes the mound for the hosts with an eye on continuing a stretch in which he's allowed two runs or less in four straight starts.
The 28-year-old Venezuelan was touched for seven hits and four runs in a five- inning stint against the White Sox on Aug. 15 in Chicago, but has since given up just four runs on 20 hits in 24 1/3 innings.
He picked up a win on Aug. 20 against Cleveland and has since gotten tough- luck no-decisions in three straight while the Tigers have been outscored, 10-7.
Galarraga, who is winless in three career starts against the Orioles, last faced them on July 6 in Detroit and got a no-decision after allowing 10 hits and three runs in a game Detroit later won, 7-5.
He is 3-3 in 12 home appearances in 2010.
For Baltimore, veteran righty Kevin Millwood continues what's been a miserable season.
The 35-year-old North Carolina native, who was 13-10 with Texas last season, got his 15th loss in 18 decisions on Sept. 3 against Tampa Bay after allowing seven hits and four runs in a 4-1 loss.
He began the season with eight straight losses, won two in a row on June 19 and 24 and has subsequently lost seven of eight decisions, with the lone other win coming at the Los Angeles Angels of Anaheim on Aug. 28.
Millwood lasted just one inning against the Tigers on July 5 in Detroit while allowing four hits and five runs in a 12-9 loss.
He is 4-5 lifetime against the Tigers and 2-8 this season in 13 road starts.
On Wednesday in New York, Nick Swisher's one-out, two-run homer in the bottom of the ninth lifted the Yankeesto a 3-2 victory over Baltimore in the finale of a three-game set.
Koji Uehara (1-1) began the home ninth by giving up a single to Alex Rodriguez, then retired Robinson Canoon a deep fly to center. Swisher then lofted the game-winning blast over the wall in left-center to end the game.
Matt Wieters slugged a two-run homer for the Orioles, whose four-game win streak came to a halt.
The Tigers swept a three-game set from the O's earlier in the year and has won five in a row and seven of the last eight meetings.