Bo Nix threw for 283 yards and five touchdown passes, leading 10th-ranked Oregon to a 45–30 win over No. 9 UCLA on Saturday afternoon at Eugene, Ore. The Ducks (6–1, 4–0 in Pac-12) ended the day as the only undefeated team in the conference and won their 23rd straight game at Autzen Stadium. Bucky Irving…