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

Definitions
Team Over Record Over % Under % Total +/-
Jacksonville 20-17-1 54.1% 46.0% +1.6
Indianapolis 18-16-0 52.9% 47.1% +1.1
Tennessee 16-17-0 48.5% 51.5% -2.0
Houston 16-22-1 42.1% 57.9% -1.2