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.

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.

BYU has been searching for a defining moment in its young Big 12 football existence for more than a year now, and on a wild and woolly night in Provo, head coach Kalani Sitake’s crew delivered it in some of the most unimaginable ways possible.

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.

Preview the Kansas State Wildcats vs. BYU Cougars college football matchup, with score predictions, stats, and game information.

BYU's Tommy Prassas grabs the loose ball and takes it 30 yards for a Cougars touchdown.

BYU scored three touchdowns off Kansas State turnovers in a three-minute span as the Cougars knocked off the No. 13 Wildcats 38-9 on Saturday night in Provo, Utah. Jake Retzlaff

Kansas State football laid an egg against BYU on the road in its Big 12 opener. Here is how the Wildcats graded out.

BYU absolutely steamrolled No. 13 Kansas State in 38-9 fashion Saturday at LaVell Edwards Stadium, and the social media world had plenty to say about it. Here are some of the best reactions to the Cougars’ stomping of the Wildcats and all of the moments that made it happen.