What is every Big 12 Conference team's record against the over/under line as an underdog since the 2008 season?

Definitions
Team Over Record Over % Under % Total +/-
Houston 39-22-1 63.9% 36.1% +3.9
Oklahoma 12-8-1 60.0% 40.0% +2.2
TX Christian 30-23-0 56.6% 43.4% +2.6
Texas A&M 37-30-0 55.2% 44.8% +3.2
Texas Tech 53-43-1 55.2% 44.8% +2.6
Colorado 72-60-2 54.6% 45.5% +0.9
Kansas 78-68-1 53.4% 46.6% +1.8
Nebraska 38-34-1 52.8% 47.2% +1.4
Kansas St 50-46-1 52.1% 47.9% +1.5
W Virginia 34-35-2 49.3% 50.7% +1.3
UCF 27-29-2 48.2% 51.8% +0.2
Missouri 35-44-1 44.3% 55.7% -1.7
Iowa St 50-64-1 43.9% 56.1% -1.0
Baylor 38-50-2 43.2% 56.8% -0.6
Oklahoma St 25-36-0 41.0% 59.0% -1.0
Cincinnati 27-39-0 40.9% 59.1% -2.3
BYU 29-43-0 40.3% 59.7% -2.6
Texas 23-41-1 35.9% 64.1% -3.1