What is every AFC South Division team's record against the over/under line as an underdog since the 2018 season?

Definitions
Team Over Record Over % Under % Total +/-
Indianapolis 27-22-0 55.1% 44.9% +2.1
Tennessee 28-28-0 50.0% 50.0% -1.2
Jacksonville 32-38-1 45.7% 54.3% -0.6
Houston 30-37-1 44.8% 55.2% +0.1