Kaidon Salter completed 16 of 25 passes for 255 yards, two touchdowns and rushed for 57 yards to spring Colorado to a 24-17 upset over No. 22 Iowa State on Saturday in Boulder, Colo.

Joseph Williams had eight catches for 128 yards and a touchdown and Omarion Miller had three grabs for 83 yards and a touchdown. Tawfiq Byard added an interception, while Micah Welch had a rushing touchdown for the Buffaloes (3-4, 1-3 Big 12).

Abu Sama III had 177 rushing yards on 24 carries and two touchdowns for Iowa State (5-2, 2-2), which has lost two straight games. Rocco Becht completed 18 of 33 passes for 205 yards and an interception.

Salter hit Williams in the corner of the end zone with 4:26 left in the third quarter on what would be the go-ahead score that gave the Buffaloes a 21-17 lead. After t

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