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

Definitions
Team Over Record Over % Under % Total +/-
Baylor 13-4-0 76.5% 23.5% +5.3
Kansas 5-3-0 62.5% 37.5% +3.2
Kansas St 5-3-0 62.5% 37.5% -0.8
Iowa St 3-2-0 60.0% 40.0% +4.3
W Virginia 11-10-0 52.4% 47.6% +4.3
Oklahoma St 10-10-1 50.0% 50.0% +3.5
TX Christian 5-5-1 50.0% 50.0% +2.1
Texas Tech 4-5-0 44.4% 55.6% -3.9
Texas 5-7-0 41.7% 58.3% -1.1
Oklahoma 6-9-0 40.0% 60.0% -4.0