Eventually six consecutive Sooners reached base, capped by back-to-back two-run hits by Mac James and Austin O’Brien.
The Sooners also got help from the bullpen after starter Jacob Evans lasted just two innings.
Robert Tasin entered the game in relief and didn’t have an easy start, battling through a jam in the third then giving up two runs in the fourth before settling in.
Tasin (4-4) wound up throwing five innings, giving up four hits and just the two runs to pick up the win.
“You get that eight spot, you need to put a zero up there,” Hughes said. “He had a shut-down inning and then he did it for three more innings for us. Even after letting up that two-run homer, the kid kept his composure and kept throwing strikes for us to keep building a lead.”
Tasin’s performance also helped OU’s cause for Sunday, as the Sooners will be able to start Ralph Garza. They also will have a fresh Kindle Ladd and Drew Krittenbrink in their bullpen after neither were needed Saturday.
Craig Aiken, Sheldon Neuse and Hermelyn all finished one hit short of the cycle.
Home plate umpire Harry Greer had to leave the game in the fifth after being hit with a pitch on his left wrist. Jon Wolfe replaced him after Greer was taken for X-rays.