Iowa and Washington have not met since at least the 2017 season.
Right now Iowa is 33–23 and Washington is 25–32, with Iowa at 153 days since a win against Washington's 152.
Full schedules and drought counters: Iowa Hawkeyes and Washington Huskies.
Iowa vs Illinois, Iowa vs Indiana, Iowa vs Maryland, Iowa vs Michigan, Iowa vs Michigan State, Iowa vs Minnesota, Iowa vs Nebraska, Iowa vs Northwestern, Iowa vs Ohio State, Iowa vs Oregon, Iowa vs Penn State, Iowa vs Purdue, Iowa vs Rutgers, Iowa vs UCLA, Iowa vs USC.
Washington vs Illinois, Washington vs Indiana, Washington vs Maryland, Washington vs Michigan, Washington vs Michigan State, Washington vs Minnesota, Washington vs Nebraska, Washington vs Northwestern, Washington vs Ohio State, Washington vs Oregon, Washington vs Penn State, Washington vs Purdue, Washington vs Rutgers, Washington vs UCLA, Washington vs USC.