Northwest led 17-10 at the end of the first quarter and 22-19 at the half.
Green Ridge came back to take a 40-30 lead after three quarters. Green Ride outscored the Mustangs 41-21 in the second half.
Hayden Doane led Green Ridge with 14 points and three treys. Connor Dillon added 13 points with three treys. Justin McCarthy added 10 with a trey. Axton Harding had nine points.
Harding led Green Ridge with seven rebounds, three assists and a steal. Dillon and Austin Story had five rebounds each. Story had six assists and Dillon four.
No Northwest stats were reported.