Diablo Summit Stomp

Walnut Creek, United States • 17 Oct 2026

Diablo Summit Stomp 2026

Diablo Summit Stomp 2026 takes place on October 17, 2026, at 1700 Castle Rock Road, Walnut Creek, CA, United States. The event offers multiple trail distances and a remote runner option for participants who cannot attend in person.

All courses are on trails and include some hilly sections. The organizer notes the courses are approachable for first-time trail runners as well as experienced runners. Walkers and hikers are welcome to use any distance.

Distances available:

  • 30K
  • Half Marathon
  • 10K
  • 5K
  • Remote Runner

Age group awards are given to the top three finishers in five-year age categories, with smaller categories used for younger ages. Registration is available for each distance with tiered pricing that changes by date. Visit the organization's website for the most recent information.

Race information

30 km
30k
Half Marathon
Half Marathon
10 km
10k
5 km
Visit the organization's website for the most recent information.
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