What is every Big 12 Conference team's record against the over/under line as an underdog since the 2015 season?

Definitions
Team Over Record Over % Under % Total +/-
Oklahoma 9-3-0 75.0% 25.0% +8.0
Houston 22-14-1 61.1% 38.9% +3.3
TX Christian 22-15-0 59.5% 40.5% +3.5
Kansas 48-36-1 57.1% 42.9% +2.8
Texas Tech 34-27-1 55.7% 44.3% +2.5
Kansas St 29-27-1 51.8% 48.2% +2.1
UCF 14-14-1 50.0% 50.0% +2.9
W Virginia 19-26-2 42.2% 57.8% -1.1
BYU 18-25-0 41.9% 58.1% -1.5
Baylor 21-33-0 38.9% 61.1% -1.7
Iowa St 20-33-1 37.7% 62.3% -3.0
Oklahoma St 14-24-0 36.8% 63.2% -0.9
Texas 13-25-0 34.2% 65.8% -2.5
Cincinnati 13-30-0 30.2% 69.8% -5.7