Independents
- Army (0-0-2)
While Oregon has never lost to Army, the Ducks have never defeated the Mules either. In the matchup's history, Oregon and Army have twice with zero wins or losses for either side.
Mid-American Conference
- Bowling Green (1-0)
Mountain West Conference
- UNLV (2-0)
- Wyoming (2-0)
- Utah State (4-0)
- New Mexico (1-0)
- San Diego State (4-0)
With the largest undefeated record over Mountain West teams, Oregon boasts a combined 13-0 against Nevada-Las Vegas, Wyoming, Utah State, New Mexico, and San Diego State.
Toward the beginning of the 2017 season, the Ducks ran through the Wyoming Cowboys 49-13 in one of the team's more recent wins over a Mountain West team.