Freshman Brian Celsi's single to right field in the bottom of the ninth inning scored pinch-runner Sean Peters (De La Salle High) and gave Cal a 2-1 baseball victory over Michigan on Sunday at Evans Diamond.
The Bears' win capped an opening-season three-game sweep of the Wolverines, all by one run.
Brenden Farney led off the ninth with a walk and was sacrificed to second by Mitchell Kranson (De La Salle). Devin Pearson walked, and after a wild pitch, Mike Reuvekamp (Miramonte High) was intentionally walked to set up Celsi's heroics.
Cal starter Michael Theofanopoulos (Foothill High) pitched five scoreless innings.
Austin Barr's eight-inning double was No. 7 Stanford's only hit in a 3-0 loss at No. 17 Rice.
Saint Mary's (1-3) lost 8-3 at Cal State Northridge. Christopher Akmon had a two-run double in the eighth for the Gaels.
The Cardinal won the team title at 569 -- 14 shots ahead of Cal.
The Earthquakes and host Portland battled to a 3-3 draw in the opener of a round-robin preseason tournament at JELD-WEN Field. The Quakes got goals from Chris Wondolowski, Victor Bernardez and Mike Fucito.
Jordan Morrison had San Francisco's lone goal in a 3-1 loss to Stockton at the Cow Palace.