Whether you're looking to squeeze in your first trail run or you're looking to log that 1,000th mile before the clock strikes midnight on 12/31/2023, this is your chance.
Note: This year we will have back-to-back events at Lake Chabot, Castro Valley with a 5K, 10K and half marathon!
New Year's Eve, Sunday, 12/31/2023
New Year's Day, Monday, 1/1/2024*
Make it a double and join us both days and earn the Brazen New Year Mega-Medal!
*Note: Each race is a unique event on its own and requires separate registration.
Registration fees
Prices are inclusive of mandatory charges, items, and fees
NYE 5K Closed
Online registration closed-
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$64.17Jun 12 – Oct 1
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$69.50Oct 2 – Dec 3
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$74.84Dec 4 – Dec 31
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NYE 10K Closed
Online registration closed-
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$73.77Jun 12 – Oct 1
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$79.11Oct 2 – Dec 3
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$84.45Dec 4 – Dec 31
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NYE Half Marathon Closed
Online registration closed-
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$92.99Jun 12 – Oct 1
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$98.33Oct 2 – Dec 3
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$103.66Dec 4 – Dec 31
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NYE Remote Closed
Online registration closed-
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$50.29Jun 12 – Oct 1
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$55.63Oct 2 – Dec 3
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$60.96Dec 4 – Dec 31
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Event schedule
- Sun, December 31, 2023 7:30 AM - NYE Hiker start (for those walking the half marathon, planning to take longer than 3.5-4 hours)
- Sun, December 31, 2023 8:30 AM - NYE Half Marathon
- Sun, December 31, 2023 8:55 AM - NYE 10K
- Sun, December 31, 2023 9:10 AM - NYE 5K
Contact information
- Event contact
- Race Director
- Website
- Visit website
