Diablo Summit Stomp
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About the race
The Diablo Summit Stomp is a trail race held on October 17, 2026 in Walnut Creek at Mount Diablo. All courses run on trails and include some hills; depending on weather, routes may include mud and creek crossings.
Distances offered:
- 30K
- Half Marathon
- 10K
- 5K
Walkers and hikers are welcome in all distances. The event information notes it is accessible to first-time trail runners as well as more experienced trail runners. Race photos are provided free by volunteer photographers.
Additional event materials include race information pages for course details, bib pick-up, start times, directions, shirts and awards, and an FAQ. Official results are published after the race. Visit the organization's website for the most recent information.
