What is every Southwest Division team's record against the over/under line as an underdog since the 2009-2010 season?

Definitions
Team Over Record Over % Under % Total +/-
San Antonio 261-221-9 54.2% 45.9% +1.0
Memphis 318-312-5 50.5% 49.5% +0.6
Dallas 287-291-7 49.7% 50.4% +0.7
Houston 277-284-6 49.4% 50.6% +1.3
New Orleans 337-379-9 47.1% 52.9% -0.1