The Humboldt Crabs split two games against the Seattle Studs over the weekend to secure the four-game series.
The Crabs, who took the opening two games on Thursday and Friday, won 8-4 on Saturday night, before dropping the series finale 3-2 in a close game on Sunday.
Merek Sears pitched six strong innings for the win on the mound on Saturday, his first in a Crabs uniform.
The former Arcata Tiger allowed just two hits and two walks and struck out two.
Javier Felix hit a grand slam home run in the win and also had a triple, while Tyler Davis also had a home run.
The Studs, however, avoided the series sweep with a one-run win on Sunday.
Nick Perryman got the start for the Cabs and allowed seven hits in four innings for the loss.
The Crabs, who are now 8-3, will hit the road for five games this week, playing the Yuba-Sutter Gold Sox on Wednesday and Thursday, before three weekend games at the Lincoln Potters.