Clarke Rosenberg's putback with 2 seconds left in regulation got Chicago State into the extra session but after Anthony Glover's basket with 3:27 left in overtime the Cougars didn't score again. They missed their last seven shots, allowing New Mexico State to win its fifth straight and only its second on the road.
Daniel Mullings had 12 points off the bench for the Aggies (14-10, 7-1 Western Athletic), including five in overtime. Pascal Siakum also had 12 points.
The Cougars trailed 31-21 at the half but shot 53.6 percent in the second half to get back in the game. They forced 20 New Mexico State turnovers they turned into 21 points.