What is every Big 12 Conference team's record against the over/under line as a road underdog since the 2003 season?

Definitions
Team Over Record Over % Under % Total +/-
Oklahoma 8-5-1 61.5% 38.5% +3.3
Nebraska 22-15-0 59.5% 40.5% +6.7
Kansas St 33-23-1 58.9% 41.1% +3.0
Texas A&M 27-21-0 56.2% 43.8% +0.5
TX Christian 18-14-0 56.2% 43.8% +2.7
Texas Tech 25-23-0 52.1% 47.9% +1.4
Kansas 39-39-1 50.0% 50.0% +1.5
Baylor 25-26-1 49.0% 51.0% +2.7
W Virginia 15-16-0 48.4% 51.6% +0.1
Missouri 18-20-0 47.4% 52.6% -0.2
Oklahoma St 17-20-0 46.0% 54.0% +0.2
Colorado 34-42-0 44.7% 55.3% -2.2
Iowa State 31-42-0 42.5% 57.5% -2.3
Texas 5-15-0 25.0% 75.0% -11.2