What is every Big 12 Conference team's record against the over/under line as an underdog since the 2017-2018 season?

Definitions
Team Over Record Over % Under % Total +/-
W Virginia 54-36-1 60.0% 40.0% +5.1
Baylor 32-25-1 56.1% 43.9% +1.3
Texas Tech 31-25-3 55.4% 44.6% +2.1
Oklahoma St 63-53-3 54.3% 45.7% +1.4
Kansas 20-17-1 54.1% 46.0% -0.7
Texas 42-37-0 53.2% 46.8% +2.0
Kansas St 57-52-2 52.3% 47.7% +2.5
Iowa St 55-52-1 51.4% 48.6% +0.9
TX Christian 43-41-3 51.2% 48.8% +1.9
Oklahoma 49-48-0 50.5% 49.5% -0.1
BYU 28-30-0 48.3% 51.7% +2.2
Cincinnati 26-29-1 47.3% 52.7% -0.5
UCF 43-48-2 47.3% 52.8% -1.7
Houston 7-14-0 33.3% 66.7% -4.3