AP PHOTO - Iowa State forward Joshua Jefferson (5) tries to shoot over TCU forward Xavier Edmonds (24) during a Big 12 Conference basketball game Tuesday in Fort Worth, Texas.

FORT WORTH, Texas — Jayden Pierre’s 3-pointer put TCU ahead with 48 seconds left and the Horned Frogs scored the final 12 points to upset No. 5 Iowa State 62-55 on Tuesday night.

Tanner Toolson had 17 points and nine rebounds off the bench for TCU (15-9, 5-6 Big 12), which earned its first victory over a top-five team since beating No. 3 Houston in January 2024. Micah Robinson also scored 17.

Pierre’s pull-up 3 gave the Horned Frogs a 57-55 lead, and Xavier Edmonds stole the ball from Iowa State point guard Tamin Lipsey near midcourt on the ensuing possession. That started a fast break, which Robinson finished with a dunk to make it 59-55 with 28 seconds remaining.

Lipsey then missed the front end of a 1-and-1 before Toolson sank three free throws to seal it.

Joshua Jefferson had 12 points, nine assists and eight rebounds for the Cyclones (21-3, 8-3), who had won five straight. Lipsey also finished with 12 points, and Milan Momcilovic had three 3-pointers and 11 points, but Iowa State went scoreless over the final 2 1/2 minutes.

A physical game full of momentum swings saw both teams trade leads throughout, but it was TCU’s defense and opportunistic offense that changed the tenor in the final minutes. The Horned Frogs converted 19 points off 17 Iowa State turnovers, turning mistakes into chances and swinging the game’s fragile balance their way.

Up next

Iowa State hosts No. 9 Kansas on Saturday.

TCU visits Oklahoma State on Saturday.