What is every Big 12 Conference team's record against the over/under line as a road underdog since the 2011 season?

Definitions
Team Over Record Over % Under % Total +/-
Texas Tech 18-14-0 56.2% 43.8% +2.4
Kansas St 20-17-1 54.0% 46.0% +2.0
TX Christian 11-10-0 52.4% 47.6% +0.7
Baylor 10-10-1 50.0% 50.0% +1.9
Oklahoma 3-3-1 50.0% 50.0% +0.2
Missouri 14-15-0 48.3% 51.7% +0.1
Kansas 24-29-1 45.3% 54.7% -0.3
W Virginia 9-11-1 45.0% 55.0% -0.7
Iowa State 18-23-0 43.9% 56.1% -1.9
Oklahoma St 7-9-0 43.8% 56.2% +0.2
Texas A&M 8-14-0 36.4% 63.6% -4.3
Texas 6-13-0 31.6% 68.4% -8.2