
Diablo Trail Run is a running and trail running race on September 6, 2026 in Clayton, CA, with entry fees from $50 to $90.
From the Organizer
Events
Weather
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
82°
Typical Low
61°
Chance of Rain
2%
Based on US Climate Normals data from Mt Diablo Junction, 3 mi from the venue.
Host City
City Elevation
897 ft
Nearest Airport
OAK
San Francisco Bay Oakland International Airport · 22 mi
Time Zone
Pacific Time
From Endurance Grid
Line up lodging and travel early to lock in your race weekend.
Race Location
Your Next Start Line
Every finish line starts with a single decision. Claim your spot at Diablo Trail Run, put it on the calendar, and turn “someday” into a start date.
45
Days to train
Enter your email and we'll send more your way.
From Endurance Grid
This race spans more than one sport — here’s a guide to each, so you can understand what’s involved and decide if it’s the right fit. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
From 5K to marathon, running races are an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Running off-road — dirt, singletrack, and mountain paths — from 5Ks to ultras. The terrain makes for an exciting twist and adventure in your running journey.
Coming Up
Falcon 5K
9 miles away
Walk for Paws
9 miles away
Rocky Ridge
11 miles away
St. Agnes Friends of the Poor Walk
6 miles away
Plan your trip
Coming from out of town? There's more to Clayton than race day. We'll help you line up nearby lodging, flights, a rental car, and things to do so you can make the most of your racecation.
Plan your trip to ClaytonFrequently Asked Questions (FAQs)
Diablo Trail Run
Sep 6, 2026