Not affiliated with this event. Official website. We may earn a commission on registrations.
Not affiliated with this event. Official website. We may earn a commission on registrations.
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!
17600 Lake Chabot Road, Castro Valley, CA, 94546, US













































































$68 after
Registration closes
$68 after
Registration closes