O'Korn was 22 for 27 for 263 yards and three touchdowns, and Houston forced a late fumble to beat the visiting Bulls, 35-23, on Thursday night.
Deontay Greenberry caught four passes for 106 yards and a touchdown, and Kenneth Farrow had rushing and receiving touchdowns for Houston (7-1, 4-0 American Athletic Conference). The Cougars are the only Football Bowl Subdivision team to score in every quarter this season.
Making his first start, Mike White was 26 for 41 for 311 yards and two touchdowns for the Bulls (2-6, 2-2). Andre Davis caught nine passes for 134 yards, and Mike McFarland had two touchdowns. South Florida was penalized 19 times for 170 yards.
"It was tough because it was the first time all year we played that well," South Florida Coach Willie Taggart said. "It was tough on our kids to be down like we were in the comeback and lose the game. It's tough. It's tougher on our kids because they fall hard. They practiced well, fell hard, got in that game, and we had a chance there at the end, but it didn't go our way."
After a muffed punt by Houston, South Florida recovered at the Houston 27 with six minutes remaining. Davis was called for offensive pass interference on a catch that would have put the Bulls on the one.
Taggart said he was told that Davis pushed off on the play.
"I saw a catch, a touchdown," Taggart said. "I wasn't over there on that side, and it is what it is."
Browning leads Louisiana Monroe
Kolton Browning threw for 354 yards and five touchdowns and ran for a score to help Louisiana Monroe beat Troy, 49-37, at Troy, Ala.
Browning completed 21 of 31 passes for the Warhawks (5-4, 3-1 Sun Belt). He threw two touchdown passes to Ajalen Holley in the first half, a 60-yarder and a six-yarder. In the third quarter, Browning threw a 23-yard scoring pass to Tre' Perrier, a 55-yarder to Rashon Ceaser, and scored on a one-yard run. Browning capped the scoring with 3:01 to go with a 29-yard touchdown pass to Perrier.
Corey Robinson completed 31 of 52 passes for 362 yards and two touchdowns for Troy (5-4, 3-2).
Antoinne Jimmerson had a long touchdown run and Brelan Chancellor returned a punt for a score in a 1:35 span in the second quarter in North Texas' 28-16 victory over Rice at Denton, Texas.
Jimmerson scored on a 42-yard run and Chancellor had a 65-yard return to give the Mean Green (6-3, 4-1 Conference USA) a 21-16 lead with 3:26 left in the first half.
Taylor McHargue threw two touchdown passes for Rice (6-3, 4-1) in the second quarter. The loss ended Rice's winning streak at five and its Conference USA streak at eight.