In 130 days · Fri, Jan 1, 2027
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Friday, January 1st, 2027
17936 Lake Chabot Rd, Castro Valley CA
Half · 5K · 10K
44–56°F · some rain risk
See last 10 years
On this date: rain 1 of the last 10 years
2026
49–59°F
rain
2025
38–54°F
dry
2024
46–58°F
dry
2023
44–59°F
dry
2022
35–50°F
dry
2021
39–56°F
dry
2020
45–59°F
dry
2019
38–52°F
dry
2018
44–61°F
dry
2017
44–50°F
dry
Best months to race in California →
About this race
Event Overview
The sun is rising on Friday morning, January 1st, the first day of 2027. Where should you be? Pounding the trails of Lake Chabot, of course!
Race Information
- Location: 17936 Lake Chabot Rd, Castro Valley, CA
- Events: Scenic and invigorating 5K, 10K or half marathon
- Date: January 1, 2027
- Registration link: Sign up here
Special Offers
- New Year Mega Medal: Join us at the Brazen New Year's Eve race and start 2026 with the highly coveted New Year Mega Medal!
- Additional Information: Learn about our Brazen New Year's Eve race here.
- Marathon Challenge: Take it even one step higher by running both half marathons (one on 12/31 and one on 1/1).
- Bragging Rights: Then brag to your friends: "It took me two years to finish that marathon"!
Course map
Train with a club
Run clubs near Castro Valley to train with before race day.
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