What is every Big Ten Conference team's record against the over/under line as a road underdog since the 2017 season?

Definitions
Team Over Record Over % Under % Total +/-
Ohio St 1-0-0 100.0% 0.0% +8.0
Michigan 5-1-0 83.3% 16.7% +5.6
Indiana 16-9-0 64.0% 36.0% +5.0
Wisconsin 3-2-0 60.0% 40.0% +6.1
Maryland 11-12-0 47.8% 52.2% -1.0
Nebraska 11-13-0 45.8% 54.2% +1.0
Illinois 13-16-1 44.8% 55.2% +0.9
Minnesota 9-12-0 42.9% 57.1% -1.5
Northwestern 9-13-2 40.9% 59.1% -3.5
Iowa 7-11-0 38.9% 61.1% -3.3
Penn St 3-6-0 33.3% 66.7% -4.0
Purdue 6-13-1 31.6% 68.4% -5.3
Michigan St 7-16-0 30.4% 69.6% -2.8
Rutgers 7-22-0 24.1% 75.9% -4.8