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Brazen New Year's Day

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Brazen New Year's Day

January 1, 2027
Castro Valley, CA 94546 US

5K

The 5K is entirely on paved 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.
Price:
$74.83 incl. $6.83 Fee
Registration:
Price increases to $80.18 after October 2, 2026 at 11:59pm PDT
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10K

The 10K is about 50% paved trails and 50% 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.
Price:
$84.46 incl. $7.46 Fee
Registration:
Price increases to $89.81 after October 2, 2026 at 11:59pm PDT
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HALF MARATHON

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.

The half marathon will start at 8:30 am and the course will have a time limit of 4.5 hours. All half marathoners must reach the aid station at mile 10.7 by 11:45 am.
Price:
$103.72 incl. $8.72 Fee
Registration:
Price increases to $109.07 after October 2, 2026 at 11:59pm PDT
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REMOTE RUNNER

Price:
$55.58 incl. $5.58 Fee
Registration:
Price increases to $60.92 after December 4, 2026 at 11:59pm PST
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