What is every Big 12 Conference team's record against the over/under line as an underdog since the 2017 season?

Definitions
Team Over Record Over % Under % Total +/-
Texas Tech 16-10-1 61.5% 38.5% +3.1
Oklahoma 3-2-0 60.0% 40.0% +14.8
TX Christian 9-6-0 60.0% 40.0% +3.2
Kansas 22-15-1 59.5% 40.5% +3.1
Kansas St 13-18-1 41.9% 58.1% +0.8
Baylor 10-16-0 38.5% 61.5% +0.3
Oklahoma St 4-7-0 36.4% 63.6% -0.3
Iowa State 7-15-0 31.8% 68.2% -5.7
W Virginia 6-13-2 31.6% 68.4% -2.8
Texas 6-14-0 30.0% 70.0% -4.2