The game was called after five innings because of the 10-run rule.
It was the third shutout of the tournament and the 20th of the season for Bruin pitcher Lisa Fernandez (27-0), who struck out five and gave up two hits in five innings. Fernandez, a two-time All-American, also was three for three, scored two runs and drove in another.
Robyn Burgess (17-5) of Cal (47-15) gave up four runs during the first inning and yielded 11 hits overall.
"As soon as we scored a couple of runs, it was like the wind went out of them," UCLA Coach Sharron Backus said.
UCLA (51-2) scored the final run with two out in the fifth inning on four consecutive singles by Fernandez, Yvonne Gutierrez, Janae Deffenbaugh and Jennifer Brundage.
Fresno State 4, Cal State Long Beach 0--Marcie Green (23-7) pitched a two-hitter and the Bulldogs handed the 49ers their first loss in the double-elimination tournament.
Kim Maher was two for four and hit a home run for Fresno State (52-14), which split four games with Long Beach (40-31) while winning the Big West Conference title this season.
Today, UCLA plays third-seeded Fresno State and Long Beach plays eighth-seeded Massachusetts (38-15), a 4-2 winner over Florida State (63-9).