A list of games in which Ohio State or Michigan has been unbeaten and untied coming into their annual meeting, dating to when it became last regular-season game for each team in 1935:
Ohio State
Year OSU Record U-M Record Result
1944 8-0 8-1 Won, 18-14
1954 8-0 6-2 Won, 21-7
1968 8-0 8-1 Won, 50-14
1969 8-0 7-2 Lost, 24-12
1970 8-0 9-0 Won, 20-9
1973 9-0 10-0 Tied, 10-10
1975 10-0 8-0-2 Won, 21-14
1979 10-0 8-2 Won, 18-15
1995 11-0 8-3 Lost, 31-23
1996 10-0 7-3 Lost, 13-9
2002 12-0 9-2 Won, 14-9
2006 11-0 11-0 Won, 42-39
Record vs. Michigan when perfect: 8-3-1
Michigan
Year U-M Record OSU Record Result
1947 8-0 2-5-1 Won, 9-3
1948 8-0 6-2 Won, 13-3
1970 9-0 8-0 Lost, 20-9
1971 10-0 6-3 Won, 10-7
1972 10-0 8-1 Lost, 14-11
1973 10-0 9-0 Tied, 10-10
1974 10-0 9-1 Lost, 12-10
1997 10-0 10-1 Won, 20-14
2006 11-0 11-0 Lost, 42-39
Record vs. Ohio State when perfect: 4-4-1
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