ARLINGTON -- Triple-A Round Rock pitcher Eric Hurley won his fourth straight start on Sunday afternoon as the Express defeated Omaha, 3-1. Hurley went seven innings and allowed one run on five hits. He walked one and struck out four. Hurley, who missed two months after getting hit in the head by a line drive, is 5-0 with a 3.94 ERA in nine starts for Round Rock. He has a 2.77 ERA in his last four starts. Darren O'Day, who was optioned to Round Rock after the All-Star break, pitched a scoreless ninth on Sunday and earned his first save down there. He has pitched four scoreless innings since being optioned.