What is every Big 12 Conference team's record against the over/under line as an underdog since the 2009 season?

Definitions
Team Over Record Over % Under % Total +/-
Oklahoma 12-7-1 63.2% 36.8% +3.9
Houston 36-22-1 62.1% 37.9% +3.2
TX Christian 30-22-0 57.7% 42.3% +2.9
Colorado 70-55-1 56.0% 44.0% +1.1
Texas Tech 51-43-1 54.3% 45.7% +2.5
Kansas 73-67-1 52.1% 47.9% +1.5
Nebraska 35-33-1 51.5% 48.5% +1.3
Kansas St 46-44-1 51.1% 48.9% +1.3
Texas A&M 30-29-0 50.9% 49.2% +1.7
W Virginia 34-35-2 49.3% 50.7% +1.3
UCF 23-26-1 46.9% 53.1% +1.2
Missouri 33-44-1 42.9% 57.1% -2.1
Baylor 34-46-2 42.5% 57.5% -0.4
Iowa St 44-61-1 41.9% 58.1% -1.2
Oklahoma St 23-33-0 41.1% 58.9% -0.9
BYU 28-41-0 40.6% 59.4% -2.8
Cincinnati 25-38-0 39.7% 60.3% -2.6
Texas 22-41-1 34.9% 65.1% -3.5