What is every Big 12 Conference team's record against the over/under line as a home underdog in the 2018-2019 season?

Definitions
Team Over Record Over % Under % Total +/-
Texas 1-0-0 100.0% 0.0% +4.0
Baylor 3-0-0 100.0% 0.0% +5.2
Iowa St 1-0-0 100.0% 0.0% +15.5
Oklahoma 2-1-0 66.7% 33.3% -0.5
W Virginia 3-4-0 42.9% 57.1% +1.9
Oklahoma St 2-4-1 33.3% 66.7% -3.6
TX Christian 1-2-0 33.3% 66.7% -3.3