Cal swept a doubleheader from No. 23 Arkansas on Sunday, 4-3 and 2-1 at Evans Diamond.
In the nightcap, Brian Celsi scored the go-ahead run in the eighth inning when third baseman Clark Eagan's throw hit the runner in the back of the helmet during a run-down. Celsi was pinch-running for Brenden Farney, who went 3 for 3.
In the opener, Devon Rodriguez had a two-run double and bases-loaded walk for Cal (10-5).
Freshman Cal Quantrill turned in a dominant 126-pitch effort to blank Kansas and lead Stanford (7-8) to a 1-0 win. Alex Dunlap had an RBI single in the fourth.
Penn State rallied for a 9-6 victory over host Saint Mary's (7-8).
Saint Mary's beat Belmont 6-0 and Brown 5-3 to finish the Loyola Marymount Invitational 5-1. Lujane Mussadi earned both wins in the circle to go 4-0 in Los Angeles.
Staff writer Jon Wilner contributed to this report.