What is every AFC West Division team's record against the over/under line as a road underdog in the 2015 season?

Definitions
Team Over Record Over % Under % Total +/-
Denver 2-0-0 100.0% 0.0% +14.2
Kansas City 3-1-1 75.0% 25.0% +3.4
Las Vegas 3-2-0 60.0% 40.0% +5.5
LA Chargers 3-5-0 37.5% 62.5% -2.5