Instant analysis: No. 3 TCU 55, Iowa State 3

FORT WORTH, Texas -- TCU completed its body of work in the regular season by handling its business with a 55-3 win against an overmatched Iowa State team (2-10) on Senior Day at Amon G. Carter Stadium. The third-ranked Horned Frogs (11-1) rested their case for a spot in the inaugural College Football Playoff in impressive fashion.

Let's take a look at how it happened.

How the game was won: After a first half that TCU dominated everywhere but the scoreboard (17-3), the Frogs slammed on the gas in the third quarter. Quarterback Trevone Boykin found running back Aaron Green for a 54-yard touchdown strike on the fourth play of the second half. Safety Derrick Kindred added a 44-yard pick-six later as TCU finished with 31 points in the quarter.

Game ball goes to: Trevone Boykin. The Frogs junior completed 15 of his first 19 pass attempts and finished the game 30-of-41 passing for 460 yards with four touchdowns and an interception. He also had his first career touchdown catch to put TCU on the board. Boykin, who broke Andy Dalton's single-season team record for touchdown passes, won't win the Heisman Trophy, but he might get an invitation to New York as a finalist.

Playoff implication: TCU did nothing to hurt its position at No. 3 in the playoff rankings on the eve of the selections. If the Frogs somehow fall, it's because of what Baylor and Ohio State do later today in games against superior competition. TCU has impressed the selection committee for months and continued to do so Saturday.

Best play: The Frogs went razzle dazzle minutes into the game, as wide receiver David Porter caught a lateral from Boykin, then threw back to Boykin, who followed a convoy of linemen 55 yards to the end zone.

What's next: TCU will play close attention to tonight's Kansas State-Baylor game in Waco, as a Baylor loss would settle the Big 12 playoff debate between the teams. Gary Patterson's squad then will await its College Football Playoff fate, as the selections are announced Sunday at 12:45 p.m. ET about 30 miles from here at the Gaylord Texan Resort.