What is every Big 12 Conference team's record against the over/under line as an underdog since the 2007-2008 season?

Definitions
Team Over Record Over % Under % Total +/-
Iowa St 137-100-3 57.8% 42.2% +3.1
Baylor 90-66-4 57.7% 42.3% +2.9
Texas 101-90-0 52.9% 47.1% +1.7
Missouri 124-111-2 52.8% 47.2% +1.1
Nebraska 154-142-3 52.0% 48.0% +1.2
Houston 74-70-3 51.4% 48.6% +1.7
Kansas St 113-108-3 51.1% 48.9% +1.7
W Virginia 93-89-3 51.1% 48.9% +0.9
Oklahoma St 124-120-3 50.8% 49.2% 0.0
Texas Tech 120-124-5 49.2% 50.8% +0.1
Texas A&M 104-109-2 48.8% 51.2% +0.1
UCF 109-116-4 48.4% 51.6% -0.2
TX Christian 132-145-6 47.7% 52.4% +1.2
BYU 57-65-0 46.7% 53.3% +1.0
Oklahoma 102-121-4 45.7% 54.3% -1.1
Colorado 104-126-0 45.2% 54.8% -0.8
Cincinnati 68-90-3 43.0% 57.0% -2.9
Kansas 29-41-1 41.4% 58.6% -2.8