The Bruins defeated the San Diego Toreros on an overtime goal from Leo Stolz in the 97th minute.
Norman Powell scored 24 points and had six steals in UCLA's 77-63 win over Long Beach State.
The Bruins are 8-2 against the 2014 NCAA field and enter with the nation's best record at 27-3.
Sam Mewis scores the game-winning goal in the 88th minute to send the Bruins into the quarterfinals.
Danny McClintick scored a team-high three goals to lead the Bruins (photo by John Hilinski).