Darren Fells added 12 points and 13 rebounds for the Anteaters (12-4, 1-2 Big West).
UC Irvine led 64-52 after a 3-pointer by Lauer with 5:53 remaining but UC Santa Barbara then forced the Anteaters into six turnovers and scored five points in a 20-second stretch that cut the lead to 64-63 with 1:10 left.
Sanders missed the front end of a one-and-one with 13.3 seconds remaining and the Gauchos set up for a shot to take the lead, but Harris lost the ball with two seconds left.
Sanders then made a pair of free throws in the final second.
The NBA will keep calling John Calipari. But will he ever answer? Don't count on it. He's a fixture in Lexington. Our stability rankings look at who else is solid in the SEC and who isn't so set.
The ACC, in partnership with ESPN, is expected to launch its own conference network by August 2019, according to sources.
Kobe Paras has signed with Creighton and will have four years of eligibility with the Bluejays after withdrawing from UCLA when he failed to meet academic conditions.