BOULDER, Colo. (Interstat) — Kaidon Salter passed for 255 yards and two touchdowns and rushed for 57 yards to lead Colorado to a 24-17 upset of 15th-ranked Iowa State on Saturday at Folsom Field. The Buffaloes scored 14 points in the third quarter to take control. Iowa State running back Abu Sama III rushed for 177 yards and two touchdowns in the loss. The Cyclones fell to 5-1, while Colorado improved to 2-4 before a crowd of 52,698.