Diablo Summit Stomp

Walnut Creek, United States • 17 Oct 2026

Event Overview

The Diablo Summit Stomp is a trail race taking place in Walnut Creek on October 17, 2026. Participants can choose from one of four distances: a 30K, a Half Marathon, a 10K, or a 5K. The courses are entirely on trails and feature some hills. Depending on weather conditions, the courses may include mud and creek crossings.

Walkers and hikers are welcome to participate in all available distances. Volunteer photographers provide free photos from the event. 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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