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

Definitions
Team Over Record Over % Under % Total +/-
Texas Tech 21-11-2 65.6% 34.4% +5.1
Oklahoma St 40-25-0 61.5% 38.5% +3.7
Kansas St 38-25-1 60.3% 39.7% +5.6
W Virginia 30-20-0 60.0% 40.0% +5.0
Texas 29-21-0 58.0% 42.0% +2.6
TX Christian 29-24-2 54.7% 45.3% +3.6
Iowa St 33-28-1 54.1% 45.9% +1.6
UCF 27-25-2 51.9% 48.1% +1.6
Baylor 19-18-0 51.4% 48.7% -0.1
Oklahoma 30-29-0 50.9% 49.2% +1.1
BYU 17-17-0 50.0% 50.0% +3.7
Cincinnati 18-19-0 48.7% 51.4% -0.7
Kansas 12-14-0 46.2% 53.9% -3.0
Houston 5-6-0 45.5% 54.6% -0.5