RunRace USA › California › Diablo Summit Stomp 2026
Diablo Summit Stomp 2026
Walnut Creek, California · Saturday, October 17, 2026 · 5K, 10K, Half Marathon, 30K
Official race page & registration ↗Diablo Summit Stomp 2026 takes place on Saturday, October 17, 2026 in Walnut Creek, California. The race offers 4 distances: 5K, 10K, Half Marathon, 30K. For anyone travelling in, Oakland is about 14 miles away.
It is one of 321 races on the California calendar that October.
- Date
- Saturday, October 17, 2026
- Location
- Walnut Creek, California
- Distances
- 5K, 10K, Half Marathon, 30K
Listing from the 2026 race calendar, refreshed nightly. Details can change: confirm date and entry on the official race page before travelling. Spot an error? Tell us here.
Making a race weekend of it?
Stay near the start line in Walnut Creek: check in Oct 16, out Oct 18.
Common questions
When is Diablo Summit Stomp 2026?
Diablo Summit Stomp 2026 is scheduled for Saturday, October 17, 2026.
Where is Diablo Summit Stomp 2026 held?
Diablo Summit Stomp 2026 is held in Walnut Creek, California. It is about 14 miles from Oakland.
What distances does Diablo Summit Stomp 2026 offer?
The listed distances are 5K, 10K, Half Marathon, 30K.
How do I register for Diablo Summit Stomp 2026?
Registration is handled on the official race page, linked at the top of this listing. Entry can close early if the race sells out.
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See every race on the California calendar, California Half Marathons, California 5Ks, or use the Race Finder for maps and filters.