BYU upset No. 13 Kansas State 38-9 late Saturday night by blowing up the Wildcats in the middle of the game. The Cougars stunned the Big 12 co-favorite with a barrage of huge plays that created a freight train of momentum K-State could not answer.

BYU's defense forced three turnovers, Jake Retzlaff threw for 149 yards and two touchdowns and Parker Kingston had a highlight reel 90-yard punt return touchdown in a 38-9 victory over No. 13 Kansas State on Saturday night.

K-State (3-1, 0-1 Big 12) suffered its first loss of the season and watched in disbelief as BYU (4-0, 1-0 Big 12) ran away with things for a lopsided win that was played late at night in the mountains of Utah.