Rising up from the depths of Lake Chabot, the Bad Bass (a strangely kilt-wearing, bagpipe-playing Scottish bass with teeth) shows itself once again on July 16th 2022! Why is he Scottish? What is he doing in Castro Valley? How can he play bagpipes with his fin? We have no idea how to answer those questions. Why is he so bad-to-the-fishbone? Maybe he just knows how awesome the trails of Lake Chabot really are!
Whatever the Bad Bass is doing here, we hope you'll join us at the beautiful Lake Chabot Marina in Castro Valley for the scenic Bad Bass 5K, 10K or Half Marathon!
Registration fees
5K Closed
Online registration closed-
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$58.00Mar 7 – Jun 5
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$63.00Jun 6 – Jun 26
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$68.00Jun 27 – Jul 16
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10K Closed
Online registration closed-
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$67.00Mar 7 – Jun 5
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$72.00Jun 6 – Jun 26
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$77.00Jun 27 – Jul 16
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Half Marathon Closed
Online registration closed-
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$85.00Mar 7 – Jun 5
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$90.00Jun 6 – Jun 26
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$95.00Jun 27 – Jul 16
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Remote Runner Closed
Online registration closed-
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$45.00Mar 7 – Jun 19
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$50.00Jun 20 – Jul 16
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Event schedule
- Sat, July 16, 2022 7:30 AM - Hiker start (for those walking the half marathon, planning to take longer than 3.5-4 hours)
- Sat, July 16, 2022 8:30 AM - Half Marathon
- Sat, July 16, 2022 8:55 AM - 10K
- Sat, July 16, 2022 9:10 AM - 5K
Contact information
- Event contact
- Race Director
- Website
- Visit website