The smaller Geoducks had stayed close for the first five minutes until Umipig hit a 3-pointer, stole the ball and made a three-point play in a 19-second span as Seattle U (2-1) broke away and never looked back. The Redhawks burst from a 6-6 tie to lead by 21, holding the Geoducks scoreless for 5:24.
Umipig and Sunderhaus each scored 13 in the first half. Sunderhaus' early totals included three dunks.
The bigger Redhawks outscored Evergreen State 58-10 in the paint and, thanks to a 68-28 disparity in rebounding, also enjoyed a 32-10 scoring edge in second-chance baskets. Jack Crook had 14 rebounds for Seattle, Sunderhaus 11.
KJ Hong led Evergreen with 17 points and Kwame Awadjie added 10.