Turns out, not many: just us and Indiana have lost 12 or more straight. Indiana is the clear conference leader though with 26 straight losses.
Current conference losing streaks against Ohio State:
Illinois (9 games)
Iowa (0 games; Iowa won last meeting in 2017)
Michigan (8 games)
Michigan State (5 games)
Northwestern (9 games)
Penn State (4 games)
Purdue (0 games; won last meeting in 2018 and has won 4 of the last 9)
Wisconsin (8 games)
The following conference teams haven’t played Ohio State 12 times (certainly may get to 12 straight losses with time):
Maryland (0-6 all time)
Nebraska (1-8 all time)
Rutgers (0-7 all time)
The big surprise here is Purdue, a team the Gophers have been pretty successful against recently, going 4-5 in the last nine.
Source: http://mcubed.net/ncaaf/series/ohst/ne.shtml
Current conference losing streaks against Ohio State:
Illinois (9 games)
Iowa (0 games; Iowa won last meeting in 2017)
Michigan (8 games)
Michigan State (5 games)
Northwestern (9 games)
Penn State (4 games)
Purdue (0 games; won last meeting in 2018 and has won 4 of the last 9)
Wisconsin (8 games)
The following conference teams haven’t played Ohio State 12 times (certainly may get to 12 straight losses with time):
Maryland (0-6 all time)
Nebraska (1-8 all time)
Rutgers (0-7 all time)
The big surprise here is Purdue, a team the Gophers have been pretty successful against recently, going 4-5 in the last nine.
Source: http://mcubed.net/ncaaf/series/ohst/ne.shtml