Bad Bass Half Marathon/10K/5K
Join Brazen Racing at the beautiful Lake Chabot Marina in Castro Valley for the scenic Bad Bass 5K, 10K or Half Marathon!
Beginning and ending at the Lake Chabot Marina, all courses include rolling, but mostly runnable hills. The 5K will be almost entirely on paved trails around the lake. The 10K and half marathon are roughly 50% on paved trail and 50% on fire trails.
Rising up from the depths of Lake Chabot, the Bad Bass (a strangely kilt-wearing, bagpipe-playing Scottish bass with teeth) shows itself once each July! 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!
Want to Run Faster?
If you’re interested in improving your running and setting new personal bests, our preferred training partner (RunDoyen) can help!
RunDoyen offers effective training plans for 5k, 10k, Half Marathon, and Marathon distances. They have a special Boston qualifying program as well!
Each run training plan has individually calculated workouts for different levels of runners.
The plans have been designed and reviewed by the world class group of RunDoyen coaches.
View their training plans to find the right one for you, and get 15% off any training plan using the coupon code RUNGUIDES15View Training Plans
Find your running pace and splits, and learn if you can outrun dangerous animals with the RunGuides run pace calculator.