What is every Big 12 Conference team's record against the over/under line as an underdog since the 2014-2015 season?

Definitions
Team Over Record Over % Under % Total +/-
Baylor 46-35-3 56.8% 43.2% +1.4
Iowa St 77-61-1 55.8% 44.2% +2.6
W Virginia 63-50-2 55.8% 44.3% +3.0
Kansas St 79-72-3 52.3% 47.7% +2.0
Oklahoma St 79-74-3 51.6% 48.4% +0.9
Texas Tech 53-52-3 50.5% 49.5% +0.4
TX Christian 70-70-4 50.0% 50.0% +1.9
Texas 61-62-0 49.6% 50.4% +0.7
BYU 38-39-0 49.4% 50.7% +1.9
Kansas 24-25-1 49.0% 51.0% -1.8
UCF 66-75-2 46.8% 53.2% -0.6
Oklahoma 62-71-0 46.6% 53.4% -0.8
Cincinnati 31-39-3 44.3% 55.7% -1.9
Houston 19-34-0 35.9% 64.2% -3.5