Brazen New Year's Day Half Marathon, 10K & 5K

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The sun is rising on Saturday. Where should you be? Hitting the trails of Lake Chabot, of course! Join in at Lake Chabot in Castro Valley for the scenic and invigorating 5k, 10k or half marathon. Bring your runner friends and family along and start the new year in the right fashion.
5k, 10k, Half Marathon, and 1 more
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Sun, Jan 1, 2023
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Castro Valley, United States
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25 to 100ft elevation gain per mile

After booking your event, invite your friends to join you and you'll get £5 credit if they make it their first Let's Do This booking.

17936 Lake Chabot Rd, Castro Valley, CA 94546, USA
Start times
Sun, Jan 1, 2023
9:10am |
8:55am |
Half Marathon:
8:30am |
Half Marathon (Hike):
Here's what races are available for Brazen New Year's Day Half Marathon, 10K & 5K
The 5k is entirely on paved trails. The 10k is about 50% paved trails and 50% dirt trails. The half marathon is approximately 30% paved trails and 70% dirt trails.
The 5k and 10k will essentially be out and back courses, while the half marathon will basically be a loop.
All courses include rolling hills that are mostly runnable.
Organizer route images
  • Finisher's medal
  • T shirt
  • Aid stations
17936 Lake Chabot Rd, Castro Valley, CA 94546, USA
Get full directionsExternalLink
The race starts and finishes at the Lake Chabot Marina at 17600 Lake Chabot Road, Castro Valley, CA 94546.
Parking inside the park will be free until the lots are full. After that, parking will be on the streets just outside.
7:30am Half hikers
8:30am Half Marathon
8:55am 10k
9:10am 5k
Brazen Racing's logo
We don’t care if you are fast or slow, big or small, young or old. We aren’t the beautiful people you might see in a shoe commercial on TV. We never will be. We’re just everyday people who have discovered the happiness that running can bring. If you have the guts to get off the couch, get outside and run or walk at least 5K (3.1 miles), we are ready for you.
View more Brazen Racing eventsExternalLink
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