ROCK THE LOCH!

CATCH A BAD BASS PERSONAL RECORD!

THIS IS HOW WE PARTY!

Rock the Loch on July 22, 2023!

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 -- even if he's a little late! 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!

THE CLOCH IS TICKING

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RACE DETAILS

RACE INFO

Everything you need to know.

Race Info

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COURSE

Three emerald courses await you.

Course Details

FAQ

Frequently asked questions.

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RESULTS

Check out your race standing and finishing time here.

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RACE PHOTOS

Provided for free by our volunteer photographers.

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VOLUNTEER

Help your family and friends by volunteering!

Volunteer

JOIN US AT LOCH CHABOT!

BAD BASS SPONSORS

Thank you to our race sponsors, through their contributions, our sponsors help keep entry costs down and expose our runners their outstanding products and services. Learn more about becoming a sponsor.