EUGENE, Ore. — Steven Montez threw for 333 yards and three touchdowns in his first career start and Colorado held off Oregon 41-38 on Saturday, the Buffaloes’ first victory over the Ducks since joining the Pac-12 in 2011. Ahkello Witherspoon intercepted Dakota Prukop’s pass to Darren Carrington in the end zone on Oregon’s final drive to preserve the win for Colorado (3-1). “That’s the most fun I’ve had in football in a while,” Montez said. The Buffaloes had retaken the lead following a controversial 31-yard touchdown from Montez to Bryce Bobo.