Idaho (0-4) had tied the game on the final play of regulation, when Dominique Blackman tossed an 8-yard TD pass to Mike Scott in the corner of the end zone. Trey Farquahar's extra point made it 34-all.
Farquahar's 49-yard field goal put the Vandals ahead in overtime, but Smith and Claiborne pulled it out for the Cowboys (1-3).
Smith was 23 of 35 for 365 yards and was not intercepted, and Chris McNeill caught eight passes for 219 yards. Blackman finished 34 of 46 for 306 yards and had three touchdowns and no interceptions.
Check out the final seconds of Duke's win over Virginia, with the Cavaliers' Malcolm Brogdon scoring a go-ahead layup, followed by Grayson Allen driving to the other end to score an off-balance bucket at the buzzer.
John Lattner, the 1953 Heisman Trophy winner who helped lead Notre Dame to a 9-0-1 record and a No. 2 ranking in Frank Leahy's final year as coach, has died. He was 83.
Jabbar Juluke, the former running backs coach at Louisiana Tech who spent just one month at Texas Tech, will assume the same role on Les Miles' staff at LSU.
Corey Robinson is returning for his senior year on the gridiron at Notre Dame while also assuming the responsibilities of student-body president.
Baylor will hire more counselors and provide additional training for faculty in an effort to improve the school's response to sexual assault incidents, school regents said Friday.
Answering questions about the hype around two young quarterbacks, whether Stanford will sooner or later fall back into mediocrity and more.