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** ONLINE REGISTRATION NOW CLOSED.  RACE DAY REGISTRATION WILL OPEN AT 7:15 AM. ** 

All courses are on trails. While there are some hills, this event, like all Brazen Racing runs, is very friendly to first-time trail runners and experienced runners alike.

Walkers/hikers are welcome in all distances.

Age group awards will be awarded to the top 3 finishers in 5 year categories (smaller categories for the younger ages). 

Registration fees

5K Closed

    1. Registration closed

5K No shirt Closed

-$5.00

    1. Registration closed

10K Closed

    1. Registration closed

10K No shirt Closed

-$5.00

    1. Registration closed

Half Marathon Closed

    1. Registration closed

Half Marathon No shirt Closed

-$5.00

    1. Registration closed

30K Closed

    1. Registration closed

30K No shirt Closed

-$5.00

    1. Registration closed

Remote Runner Closed

    1. Registration closed

Remote Runner No shirt Closed

-$5.00

    1. Registration closed

Event Schedule

  • November 3 7:45 AM PDT - Early Half Start (for those walking the half marathon, planning to take longer than 3.5 hours)

  • November 3 8:15 AM PDT - 30K

  • November 3 8:30 AM PDT - Half Marathon

  • November 3 9:00 AM PDT - 10K

  • November 3 9:15 AM PDT - 5K

Contact Information

Event Location

Castle Rock Road, Walnut Creek, CA, United States

Click here to view map