Cal State Northridge (3-7) snapped a five-game losing streak. Portland State (3-6) has lost four straight.
Isaiah Pineiro scored a layup and Cameron Forte made 3 of 4 free throws to pull the Vikings to 55-53 with 8:12 remaining. Warren answered with a pair of free throws to spark a 14-7 spurt and the Matadors led 69-60. Warren made four free throws and two field goals during the stretch.
Hale-Edmerson had 14 points for the Matadors. Robinson made seven 3-pointers and scored 21 points to lead Portland State.