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Diablo Trail Run

Clayton, California · Sunday, September 6, 2026 · 4 Miles, 10 Mile, Half Marathon, Marathon, 30.4 Miles, 2 Mile

Official race page & registration ↗

Diablo Trail Run takes place on Sunday, September 6, 2026 in Clayton, California. The race offers 6 distances: 4 Miles, 10 Mile, Half Marathon, Marathon, 30.4 Miles, 2 Mile. It is run on trail. For anyone travelling in, Pittsburg is about 8 miles away and Hayward is about 20 miles away.

It is one of 296 races on the California calendar that September. At $50, entry is about typical for a California ultra, where the median is $50.

Date
Sunday, September 6, 2026
Location
Clayton, California
Distances
4 Miles, 10 Mile, Half Marathon, Marathon, 30.4 Miles, 2 Mile
Surface
Trail
Entry fee
from $50

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 Clayton: check in Sep 5, out Sep 7.

Hotels on Booking.com ↗ Hotels on Expedia ↗

Common questions

When is Diablo Trail Run?

Diablo Trail Run is scheduled for Sunday, September 6, 2026.

Where is Diablo Trail Run held?

Diablo Trail Run is held in Clayton, California. It is about 8 miles from Pittsburg and 20 miles from Hayward.

What distances does Diablo Trail Run offer?

The listed distances are 4 Miles, 10 Mile, Half Marathon, Marathon, 30.4 Miles, 2 Mile.

How much does Diablo Trail Run cost?

Entry is listed from $50. Check the official race page for the current price, which usually rises closer to race day.

How do I register for Diablo Trail Run?

Registration is handled on the official race page, linked at the top of this listing. Entry can close early if the race sells out.

More races nearby

See every race on the California calendar, California Marathons, California Half Marathons, or use the Race Finder for maps and filters.