Stomp To The Summit of Mount Diablo!

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. Depending on the weather, all distances may include mud and creek crossings!

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). 


30K: 7:45 am

Half Marathon: 8:00 am

10K: 8:20 am

5K: 8:40 am

Cutoff time for the half marathon is 4.5 hours.

More information on the races and the family hike can be found on the course info page.


Want to run with us, but can't make it in person?