Brazen New Year's Eve
Brazen New Year's Eve is a running race on January 1, 2027 in Castro Valley, CA, with entry fees from $68 to $95.
- Date
- January 1, 2027 (163 days to go)
- Price
- $68–$95
- Sport
- Running
From the Organizer
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 12/31/2026, 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, Thursday, 12/31/2026
New Year's Day, Friday, 1/1/2027*
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.
Events
Weather
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
59°
Typical Low
43°
Chance of Rain
32%
Based on US Climate Normals data from Hayward Air Terminal, 4 mi from the venue.
Host City
About Castro Valley, CA
City Elevation
393 ft
Nearest Airport
OAK
San Francisco Bay Oakland International Airport · 9 mi
Time Zone
Pacific Time
From Endurance Grid
Line up lodging and travel early to lock in your race weekend.
Race Location
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at Brazen New Year's Eve, put it on the calendar, and turn “someday” into a start date.
163
Days to train
- Race
- Brazen New Year's Eve
- Date
- January 1, 2027
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From Endurance Grid
About This Sport
Endurance Grid is here to help you understand the sport, decide if it’s the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.
Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.
Running
From 5K to marathon, running races are an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Coming Up
More Running races near Castro Valley, CA
Summer Breeze
5K · 10K · Half Marathon · From $73 · 1400 Monarch Bay Dr
5 miles away
Beer City Half™ Bishop Ranch
1 Mile · 5K · 10K · Half Marathon · From $30 · 6000 Bollinger Canyon Rd
8 miles away
Rocky Ridge
5K · 10K · From $63 · 18012 Bollinger Canyon Rd
7 miles away
10K On The Bay
1 Mile · 5K · 10K · From $25 · 4901 Breakwater Avenue
6 miles away
Plan your trip
Make it a Racecation
Coming from out of town? There's more to Castro Valley than race day. We'll help you line up nearby lodging, flights, a rental car, and things to do so you can make the most of your racecation.
Plan your trip to Castro ValleyFrequently Asked Questions (FAQs)
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Brazen New Year's Eve
Jan 1, 2027