Iowa State's Todd Blythe, right, catches a touchdown pass in front of Colorado's Josh Smith. The Cyclones stunned the Buffaloes, 31-28, Saturday in Ames, Iowa.

Ames, Iowa ? Iowa State coach Gene Chizik wasn’t sure what happened at the end. Neither was Colorado coach Dan Hawkins.

They weren’t alone.

Everyone in the stadium watched in confusion as Colorado’s Kevin Eberhart first made a 50-yard field goal that was negated, then made a 55-yarder that was called off because time had run out, allowing Iowa State to escape with a 31-28 victory on Saturday.

“I’ve been in a lot bizarre games,” Hawkins said. “This might be close to the top.”

The wild sequence came after Iowa State (3-8, 2-5 Big 12) matched its biggest comeback since a 1989 win over Missouri by scoring 31-second half points to erase Colorado’s 21-0 halftime lead.

Colorado (5-6, 3-4) cut the lead to three on Cody Hawkins’ nine-yard touchdown pass to Scott McKnight with 2:40 left. The Buffaloes’ defense held, and Colorado got the ball at its own 28 with 46 seconds left and no timeouts.

Hawkins drove them to the Iowa State 33, but Tyson DeVree couldn’t get out of bounds on a third-down reception, so the field goal unit had to rush onto the field. Eberhart’s kick fluttered through the uprights, but Colorado was called for delay of game for snapping the ball before it was blown into play.

The officials marched off 5 yards, put a second on the clock and Colorado lined up again. Eberhart made the longer kick, but the officials ruled time had expired before the ball was snapped, and the Buffaloes stomped off the field.

No. 4 Oklahoma 52, Baylor 21

Norman, Okla. – DeMarco Murray provided the style points for Oklahoma as the Sooners made their argument to move up in the Bowl Championship Series rankings.

The freshman running back scored four touchdowns, one on a 91-yard kickoff return.

Oklahoma has not lost to Baylor in 17 meetings between the teams. Baylor lost its seventh straight game amid reports that its coach, Guy Morriss, would be replaced at the end of the season.

No. 7 Missouri 40, Texas A&M 26

Columbia, Mo. – Jeremy Maclin caught two touchdown passes, one to pull Missouri out of late trouble and the other on the school’s longest reception in 31 years.

Chase Daniel threw for 352 yards and three touchdowns for Missouri, which reached nine victories for the first time since 1969. The Tigers scored nine points in the final 3:44 on Maclin’s 12-yard grab and a safety when Lorenzo Williams sacked Stephen McGee in the end zone to avert a second-half collapse.

No. 15 Texas 59, Texas Tech 43

Austin, Texas – Colt McCoy passed for four touchdowns, ran for two more, and the Longhorns scored 24 points in the fourth quarter to hold off the Red Raiders.

The Longhorns and Raiders scored 47 points in the final 12 minutes.

“You can’t ever think the game is in hand against those guys,” McCoy said. “They never give up.”

The teams combined for 48 points in the first half but the game didn’t get really crazy until the fourth quarter.