Diablo Summit Stomp

Walnut Creek, United States • 17 Oct 2026

Diablo Summit Stomp

The Diablo Summit Stomp is a trail running event on October 17, 2026 in Walnut Creek at Mount Diablo. Multiple distances are offered on trails that lead toward the summit and surrounding ridge lines.

Distances available

  • 30K
  • Half Marathon
  • 10K
  • 5K

All courses are run on trails. The routes include some hills and, depending on weather, may include mud and creek crossings. Walkers and hikers are allowed to participate in all distances.

The event includes standard race services such as bib pick up and official results. Volunteer photographers provide race photos, and volunteer opportunities are listed for those who wish to help. Race information and an FAQ are provided for participants. 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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