What is every Big 12 Conference team's record against the over/under line as an underdog in the 2012-2013 season?

Definitions
Team Over Record Over % Under % Total +/-
Iowa St 10-0-0 100.0% 0.0% +17.6
Texas 11-8-0 57.9% 42.1% +6.8
TX Christian 11-8-1 57.9% 42.1% +2.3
W Virginia 9-7-0 56.3% 43.8% +2.3
Oklahoma 6-5-1 54.6% 45.5% -1.2
Oklahoma St 4-4-0 50.0% 50.0% +3.3
Baylor 5-5-0 50.0% 50.0% -0.5
Texas Tech 9-13-0 40.9% 59.1% -4.2
Kansas St 4-6-0 40.0% 60.0% -4.4
Kansas 0-2-0 0.0% 100.0% -1.0