Oregon (3-1) had won seven in a row and three straight over the rival Beavers. The loss dashed any slim hopes the Ducks had of a spot in the College Football Playoffs. The Ducks were ranked No. 15 in the first CFP rankings released Tuesday.
Tristan Gebbia threw for 263 years and a score and had a touchdown run during the foggy game at Reser Stadium. While no fans were allowed in the game, cars passing near the stadium honked for the home team in the aftermath.
Tyler Shough threw for 266 yards and two touchdowns for Oregon.