What is every Big 12 Conference team's record against the over/under line as a home underdog in the 2018 season?

Definitions
Team Over Record Over % Under % Total +/-
W Virginia 1-0-0 100.0% 0.0% +28.5
TX Christian 2-0-0 100.0% 0.0% +9.3
Texas Tech 3-0-0 100.0% 0.0% +11.3
Oklahoma St 2-1-0 66.7% 33.3% +7.8
Kansas 2-2-0 50.0% 50.0% -0.4
Texas 1-1-0 50.0% 50.0% +11.0
Iowa St 1-1-0 50.0% 50.0% -1.5
Kansas St 0-4-0 0.0% 100.0% -18.1
Baylor 0-2-0 0.0% 100.0% -13.8