Laufen
Half Marathon
21,1 km
886m
Pre-registration price: 125,00 EUR

Laufen
Half Marathon
21,1 km
886m
Pre-registration price: 125,00 EUR
Laufen
10K
10 km
Pre-registration price: 95,00 EUR
Laufen
5K
5 km
95m
Pre-registration price: 85,00 EUR
Start 2027 the right way with Brazen Racing’s scenic New Year’s Day race at Lake Chabot in Castro Valley — choose the 5K, 10K, or half marathon, enjoy aid stations with water, sports drink, gels, and earn the coveted New Year Mega Medal (or combine both NYE and New Year’s Day for bragging rights).
Water stations stocked with water, sports drink, gels, pretzels, and candy; toilets at start/finish; cupless policy for half marathon aid stations; Hydrapak Speed Cup available ($5 with tax) at merchandise tent.
Pacemaker flags and target times per start wave are provided on the race day schedule (Renntag) to help you hit your goal pace; follow pacer guidance for supported pacing.
Monatsdurchschnitte aus historischen Daten (2000–heute).
5 kilometers = 3.1 miles 10 kilometers = 6.2 miles Half Marathon = 13.1 miles (21.1 kilometers) Note that for trail races, due to an inability to lengthen and shorten trails, races can sometimes be a little bit more or (once in a rare while) a little bit less than the advertised distance.
You won't be out of place at all. Our races are planned for participants of all abilities -- including walkers/hikers.
Yes, but we ask that you keep the volume down at a safe level so that you can hear other runners or instructions from event personnel. We also ask that you remove them, or, at the very least, remove one ear bud when you are coming to aid stations, in a large crowd or on more technical or difficult sections of the course. The important thing is paying attention to everyone's safety and maintaining basic race etiquette with other runners.
Yes. Unless the park limits have been reached (would be announced here on the website), race day registration will be open at 7:00 am.
We do not. There are many different ways for pricing race entry fees. Although it can sometimes make runners feel like they are getting a special deal, we do not use the method of offering a price higher than necessary to support the race, then offering discounts to only those who are lucky enough to find a coupon. We believe that such a policy unfairly penalizes those who (for whatever reason) do not find out about and utilize the coupon or discount. Our prices are arranged so that every runner automatically gets the group discount, because they are in fact part of the large group running that race. Almost all of our races are composed of several hundred runners (sometimes well over a thousand) and it is because of these numbers that we can offer a high quality experience while still charging an entry fee well below what you might expect or find at comparable events elsewhere. We do offer a discount to those who sign up early, since early sign-ups allow us to plan better and lower the overall costs of the race. Similarly, we include an additional charge for those who sign up late, since the accomodation of race entries in the last two weeks before a race increases the per-runner cost. The other exception for discounts is for those who volunteer at one race and then partipate at a later one. Those volunteers receive a discounted (and sometimes free) race entry.
Yes, we will have results and awards for age group finishers in 5 year divisions (see the shirts and award page). If you do not receive your age group medal on race day, you can request it here.
You can find bib pick-up information here.
The half marathon has a 4.5 hour time limit. All half marathoners must reach the aid station at mile 10.7 by 11:45 am. For half marathon participants who wish to hike the course and take more than 3.5-4 hours, we will offer a "Hiker Start=" at 7:30 am. Those starting at 7:30 should carry water as the first and second aid stations might not be 100% up and running, depending on the hikers speed. Hiker starts will not be eligible to win the race or for age group awards, but will be listed as official finishers in the Hikers Division and will still receive finisher medals.
Yes, there will be a sweat-check area and these will be checked in and watched over by a volunteer. Bags for storing your sweats will be available if you do not bring your own. Please do not leave valuables in your sweat bags -- we cannot be responsible for these items.
Unfortunately no. As much as we love dogs and running with our own, not everyone is comfortable being around dogs (even if leashed) and for reasons of safety (for those with two legs and four) we ask runners not to bring their dogs along for the race.
No. The race will be held, rain or shine. Courses may be modified to account for weather conditions.
Click here to see our event cancellation policy.
No. Putting on a race can be a very expensive (and financially risky) endeavor. To a small extent, that risk gets shared by all who enter since injuries, emergencies and plain old "life happening=" can potentially ruin plans for participation. Because the majority of the funds collected have been spent long before the race occurs, we do not issue cash refunds. We will, however, credit you with 50% or 75% of your entry toward a future race if you let us know in advance (at least 2 weeks for 75% credit, at least 72 hours for 50%).
Please use the contact form for further questions.
Stay in the loop with all things Brazen Racing by joining our mailing list. "*" indicates required fields Name First Last Email* Δ document.getElementById( "ak_js_1=" ).setAttribute( "value=", ( new Date() ).getTime() );
Stay in the loop with all things Brazen Racing by joining our mailing list.
Zuletzt aktualisiert: Jun 6, 2026, 12:08:29 AM
Wir mailen dir, wenn Läufe zu deinen Filtern passen. Kein Spam — nur passende Rennen.
Auf die Plätze
Racedetails werden geladen…