Gabe Vincent gave the Gauchos (9-11, 3-4 Big West) the lead for good at 59-56 on a 3-pointer with 5:19 left. That sparked a 10-2 run which he capped with another 3 at 66-58 with 2:25 to play.
After Aaron Wright made 1 of 2 free throws for the Anteaters (17-6, 6-1), Eric Childress extended UC Santa Barbara's possession with an offensive rebound and Vincent fed Bryson along the baseline for a two-handed dunk to make it 68-59 at 1:10.
UC Irvine had a pair of technical fouls in the final minute that helped the Gauchos extend their margin of victory.
Vincent added 14 points and Childress scored 12 for UCSB.