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Castro Valley, CA

Bad Bass

  • Date
  • First start7:30 AM PDT
  • Location17600 Lake Chabot Road, Castro Valley, CA 94546
  • DistancesHalf Marathon · 6.4 Miles · 3.35 Miles
  • SurfaceTrail
  • SwagHalf Marathon Shirt · Race Shirt

Bib Scout Report

  • Trail
Events, current fees, and scheduled price increases
EventDistanceStartCurrent feeNext increase
HALF MARATHONHalf Marathon8:30 AM PDT$90$95 on
10K6.4 Miles8:55 AM PDT$72$77 on
5K3.35 Miles9:10 AM PDT$63$68 on
Half Marathon HikerHalf Marathon7:30 AM PDT$100—

Scouted from the official RunSignup listing. Fees shown exclude processing fees. Merit badges are detected from the organizer’s description. Dates, courses, and prices can change — confirm on the registration page.

About Bad Bass

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 24th 2027! 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!

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