What is every Big Ten Conference team's record against the over/under line as a road underdog since the 2020 season?

Definitions
Team Over Record Over % Under % Total +/-
Ohio St 1-0-0 100.0% 0.0% +8.0
Wisconsin 1-0-0 100.0% 0.0% +16.5
Michigan 2-0-0 100.0% 0.0% +11.8
Indiana 11-6-0 64.7% 35.3% +5.2
Northwestern 6-7-1 46.2% 53.9% -0.6
Purdue 5-7-1 41.7% 58.3% -2.5
Michigan St 6-10-0 37.5% 62.5% +0.2
Illinois 6-11-0 35.3% 64.7% -2.3
Penn St 2-4-0 33.3% 66.7% -7.0
Rutgers 5-11-0 31.3% 68.8% -2.5
Minnesota 3-7-0 30.0% 70.0% -5.9
Nebraska 4-10-0 28.6% 71.4% -4.7
Iowa 3-8-0 27.3% 72.7% -2.7
Maryland 3-8-0 27.3% 72.7% -7.1