AMES, Iowa (AP) — Trevone Boykin threw for 436 yards and four touchdowns and third-ranked TCU rolled past Iowa State 45-21 Saturday for its third road win in four weeks. Josh Doctson had 190 yards receiving and two TDs for the Horned Frogs (7-0, 4-0 Big 12), who went on a 31-0 run after the first quarter.

Boykin’s 3-yard TD run with 14:36 left put TCU ahead 38-21. Doctson made it a rout with a 42-yard touchdown catch six minutes later. Sam Richardson had 251 yards passing for Iowa State (2-4, 1-2).