The 1985 Oregon State vs. Washington football game was a college football game between the Oregon State Beavers and Washington Huskies that took place on October 19, 1985. The game featured the largest overcome point spread in college football history at the time when the Huskies, after being favored by 38 points, lost 21–20 after the Beavers blocked a punt and recovered the ball in the end zone with 1:29 left to play in the game. It is considered one of the greatest upsets in college football history.

On October 6, 2007, Stanford achieved the highest point spread upset in college football history when the 41 point underdog Cardinal upset No. 2 USC 24–23. Oregon State, Stanford, USC, and Washington are all members of the Pac-12 Conference, thus the two biggest point spread upsets have come in Pac-12 games.

During the middle 1980s the University of Washington Huskies were a powerhouse of American collegiate football, finishing the 1984 season ranked number 2 nationally. After a bit of a rough start, the Seattle team was on a roll again in 1985, feeling strong as a result of the four-game win streak that had returned the Huskies to the top of the Pac-10 standings.

In stark contrast, the Beavers were coming off four straight losses including back to back blankings against USC and Washington State, where they allowed a total of 97 points. No team in Oregon State history had allowed that many points over back-to-back games. Prior to that, the Beavers lost to Division I-AA team Grambling State 23–6 and to Fresno State 33–24. To make matters worse for Oregon State, starting quarterback Erik Wilhelm was out for the season, and Pac-10 Conference (Pac-10) leading receiver Reggie Bynum was also out due to injury. Additionally, the Beavers had lost the last 10 games played against Washington by an average of 24 points.

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