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

Definitions
Team Over Record Over % Under % Total +/-
Oklahoma 1-0-0 100.0% 0.0% +10.5
TX Christian 6-3-0 66.7% 33.3% +2.1
W Virginia 10-6-0 62.5% 37.5% +8.6
Texas A&M 6-4-0 60.0% 40.0% +7.8
Texas Tech 12-9-1 57.1% 42.9% +4.3
Iowa State 18-14-1 56.2% 43.8% +1.8
Oklahoma St 7-6-0 53.8% 46.2% -0.8
Kansas 21-21-0 50.0% 50.0% -1.0
Missouri 7-8-0 46.7% 53.3% -6.6
Baylor 5-6-0 45.5% 54.5% +3.8
Texas 5-8-1 38.5% 61.5% +1.1
Kansas St 7-15-0 31.8% 68.2% -1.8