Vander Joaquim had 15 points for the Rainbow Warriors (15-9, 9-4 Big West), who won their fifth straight game.
Hawaii trailed 34-31 at the break and fell behind by seven points in the second half. But a 14-0 run over a 6:23 stretch gave the Warriors the lead for good.
Vander had seven points during the surge, and Standhardinger's back-to-back jumpers made the score 49-42 with 11:29 left.
The Anteaters got within four points down the stretch, but Hawaii protected the lead by going 11 of 12 from the free-throw line in the final 1:28.