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.
The newest edition to Easton Stadium chronologizes the history of the winningest softball program.
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).
Nirra Fields led UCLA for the third-straight game (19 points), but the Bruins fell to 0-3.
UCLA and Pepperdine battle in the third round of the NCAA Tournament at Drake Stadium at 3pm.
Three Bruins had double figures in kills, while four had at least 10 digs in Saturday's win.
Brett Hundley threw for three touchdowns as UCLA cruised past USC, 38-20, at the Rose Bowl.
The Bruins had a total of 11 swimmers reach the championship finals on Saturday.
Garrett Danner had 12 saves, but the Bruins' offense scored the fewest goals in six years.