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 28th 2018! 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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$46.00Aug 17 – Jun 3
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$51.00Jun 4 – Jul 1
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$56.00Jul 2 – Jul 27
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5K No shirt Closed
Online registration closed-
-$5.00
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$41.00Aug 17 – Jun 3
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$46.00Jun 4 – Jul 1
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$51.00Jul 2 – Jul 27
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10K Closed
Online registration closed-
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$55.00Aug 17 – Jun 3
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$60.00Jun 4 – Jul 1
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$65.00Jul 2 – Jul 27
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10K No shirt Closed
Online registration closed-
-$5.00
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$50.00Aug 17 – Jun 3
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$55.00Jun 4 – Jul 1
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$60.00Jul 2 – Jul 27
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Half Marathon Closed
Online registration closed-
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$71.00Aug 17 – Jun 3
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$76.00Jun 4 – Jul 2
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$81.00Jul 3 – Jul 27
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Half Marathon No shirt Closed
Online registration closed-
-$5.00
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$66.00Aug 17 – Jun 3
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$71.00Jun 4 – Jul 2
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$76.00Jul 3 – Jul 27
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Remote Runner Closed
Online registration closed-
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$40.00Aug 17 – Jul 1
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$45.00Jul 2 – Jul 27
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Remote Runner No shirt Closed
Online registration closed-
-$5.00
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$35.00Aug 17 – Jul 1
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$40.00Jul 2 – Jul 27
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Event schedule
- Sat, July 28, 2018 7:30 AM - Hiker start (for those walking the half marathon, planning to take longer than 3.5-4 hours)
- Sat, July 28, 2018 8:30 AM - Half Marathon
- Sat, July 28, 2018 8:55 AM - 10K
- Sat, July 28, 2018 9:10 AM - 5K
Contact information
- Event contact
- Race Director
- Website
- Visit website