The final score will read 87-83, but it took a self-destructive final thirty seconds of regulation and two overtimes to get there.
Oregon led 69-63 with 24 seconds remaining in regulation, but UCLA was able to score eight points in that span, the Ducks just two, to force overtime. David Wear made three-point shot from just inside the half-court line as time expired to tie it.
The make came after Joseph Young converted two free throws, the second of which allowed the Bruins to get set out-of-bounds. Wear ran unguarded down the court, caught the pass and drained the shot.
The teams scored just two points a piece in the first overtime. Oregon had two shot clock violations before Young stole a Bruin handoff near mid court and took it for the Ducks only basket of the overtime.
Young put the Ducks ahead with 2:34 left in the second overtime on a corner three, his fourth made of the game. Oregon never trailed again.
Without the two starting guards, freshman Bryce Alford burnt the Ducks for 31 points, most coming in the closing minutes of regulation when he had 11 of UCLA's final 17 points.
Young and Jason Calliste each came up empty on free throw line trips in the final 43 seconds. Young missed the front end, just his fourth miss of Pac-12 play, while Calliste missed two with 16 seconds to go.
Alford followed the pair of misses with a three-pointer to cut it to 69-68 with 11 seconds remaining.
Oregon led by 14 on two occasions, the last time with 10:33 remaining in the second half.
The Ducks held an advantage for 43 straight minutes until UCLA made two free throws in the opening minute of the first overtime.
Young led the Ducks with 26 points. Mike Moser's 20 rebounds were the most by an Oregon player since Greg Ballard in 1977. Moser also had 12 points.
Callsite had 15 first half points, 12 coming on three-point shots, but had just three after. The lone made three, his fifth of the game, appeared to be a dagger.
Calliste made a step back three to beat the buzzer with 1:43 left to make the lead five.