Bad Bass

  • Date Sat 18th July 2026
  • Time 8:30AM PDT
  • Location Castro Valley, California
  • Price $60.92 - $109.07
  • Races 4 races
  • Distances Half Marathon

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Event summary

Get ready for an unforgettable adventure at the Bad Bass event on Saturday, July 18th, 2026, set against the stunning backdrop of Lake Chabot in Castro Valley, Alameda! This whimsical celebration features the iconic Bad Bass, a quirky Scottish fish known for its bagpipe skills and kilt, making for a truly unique experience. Participants can choose from a scenic 5K, a challenging 10K, or an exhilarating Half Marathon, all designed to showcase the breathtaking trails of Lake Chabot. Whether you're a seasoned runner or just looking for a fun day out with friends and family, the Bad Bass promises a fantastic atmosphere filled with laughter, camaraderie, and the spirit of adventure. Don’t miss your chance to join in the fun and discover why the trails here are simply awesome!

Organiser's Description

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 18th 2026! 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!

Races

  • Half Marathon

    Incl. $9.07 Fee & Half Marathon Shirt

    Sat 18th July 2026 (8:30AM PDT)

    $109.07

  • 10k

    Incl. $7.81 Fee & Race Shirt

    Sat 18th July 2026 (8:55AM PDT)

    $89.81

  • 5k

    Incl. $7.18 Fee & Race Shirt

    Sat 18th July 2026 (9:10AM PDT)

    $80.18

  • Remote Runner

    Incl. $5.92 Fee & Race Shirt

    $60.92

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Location

17600 Lake Chabot Road, Castro Valley, 94546, CA, United States

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Jul 18, 2026

$60.92 - $109.07