Cal Poly (9-9, 5-3 Big West) found itself trailing 49-47 with 13:04 remaining in the game after Josh Greene made a lay-up to break the tie but the Mustangs took over from there, going on a 28-15 run to end the game. Eversley hit the go-ahead 3-pointer to make it 50-49 and Cal Poly never looked back.
Green finished his night with 14 points for the Matadors.
Brian Bennett had 17 points and six rebounds for Cal Poly.
Three other players were in double figures for Cal State Northridge (10-11, 1-8) as Trevone Williams led the way with 15 points and eight rebounds. Landon Drew had 10 points and nine assists and Stephen Maxwell chipped in with 14.