Daulton Jefferies limited Coastal Carolina to a run over seven innings and third-seeded California beat the second-seeded Chanticleers 9-3 on Friday in their NCAA regional opener.
Jefferies (6-5) allowed three hits, including a solo home run by Tyler Chadwick in the second inning.
The Golden Bears (35-19) scored two runs in the fifth on RBI doubles by Aaron Knapp and Devin Pearson for a 3-1 lead. Mitchell Kranson had two RBIs for Cal.
On Saturday, California will play the Texas A&M-Texas Southern winner. Coastal Carolina (38-20) will face the loser.
Cal made the tournament for the first since playing in the 2011 College World Series.
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