What is every Big Ten Conference team's record against the over/under line as a road underdog in the 2018-2019 season?

Definitions
Team Over Record Over % Under % Total +/-
Iowa 6-2-0 75.0% 25.0% +7.9
Nebraska 6-2-0 75.0% 25.0% +9.2
Indiana 7-3-0 70.0% 30.0% +4.5
Michigan 2-1-0 66.7% 33.3% -5.2
Rutgers 7-5-0 58.3% 41.7% +6.2
Michigan St 1-1-0 50.0% 50.0% +3.0
Penn St 4-6-0 40.0% 60.0% -4.1
Wisconsin 2-3-0 40.0% 60.0% -5.0
Northwestern 3-6-0 33.3% 66.7% -2.6
Illinois 3-7-0 30.0% 70.0% -7.4
Purdue 1-3-0 25.0% 75.0% +2.1
Maryland 2-6-0 25.0% 75.0% -12.9
Ohio St 2-7-0 22.2% 77.8% -10.9
Minnesota 0-9-1 0.0% 100.0% -13.0