O's starter David Hernandez gave up three runs and three hits over four innings and took the loss as the Chicago White Sox beat the Orioles 4-1 Saturday to even the series.
Carlos Quentin's solo homer in the 2nd gave Chicago a 1-0 lead and it grew to 3-0 in the 4th on RBI from Alexei Ramirez and Mark Kotsay.
The O's cut a 4-0 lead to 4-1 in the 7th. Luke Scott drew a leadoff walk and later scored on a wild pitch.
Winning pitcher John Danks improved to 11-8, 3.85. He gave up just one run and three hits over 6 1/3 with six walks and three strikeouts.
Danks is 6-2, 3.14 over his last ten starts.
With the loss, the O's missed a chance to win their first series since the All-Star break, but could still do it with a win Sunday afternoon.
Brian Roberts went 0 for 3 with two walks as his 11-game batting streak ended.
The O's fall to 4-4 vs. Chicago, 6-15 in August and 10-25 since the All-Star break.