The victory gave coach Bryce Drew, his brother Scott Drew and father Homer Drew a combined 500 coaching victories at Valparaiso. The family already topped 1,000 collegiate coaching victories this season.
Charles Cooper hit a pair of free throws with 42 seconds left in the first half to cut Valparaiso's lead to five points going into halftime, 33-28, and the Crusaders pulled away in the second half.
Carrington Love pulled the Phoenix to 69-59 with 4:05 left in the game, but Green Bay got no closer and Valparaiso answered with an 8-0 run.
Vashil Fernandez finished with 13 points and 11 rebounds for the Crusaders (15-3, 5-0).
Love and Cooper both scored 22 points to lead Green Bay (11-7, 4-2).