Anthony Miles had 12 points and five steals for the Cardinals (16-8, 7-3 Southland), who moved into a tie with the Demons (14-10, 7-3) for second place in the conference's Eastern Division, a half-game behind idle McNeese State.
Lamar shot 50 percent (18 for 36) in the second half to break open a game it led 40-30 at the break. The Cardinals enjoyed a 20-4 points-off-turnovers advantage, as it had just seven giveaways to the Demons' 18.
Brandon Davis had 11 points for Lamar.
- Northwestern State
- Mike James