ROUND ROCK, Texas (AP) _ Drew Meyer's RBI broke a tie in the ninth inning and the RedHawks went on to beat Round Rock 3-to-2.
Meyer's hit skipped off the glove of JR House, allowing Miguel Ojeda to score the winning run for Monday night's victory.
Earlier Alan Zinter hit a homer off RA Dickey in the fourth, bringing the Express closer at 2-to-0.
Jason Hart hit a homer to lead off the third inning, his 12th of the season, breaking the career record for home runs by a RedHawks player.
Oklahoma travels to Tennessee to begin a series with Memphis tonight.
The RedHawks improve to 64-and-59 and are seven games behind the Express in the Southern Division of the Pacific Coast League's American Conference.