California · 4 Miles · 10 Miles · 5K
Diablo Trail Run
Diablo Trail Run is a 4 Miles, 10 Miles, 5K, 10K and 30.4 Miles event held in Clayton, California. Its next confirmed date is Sunday, May 23, 2027.
- Race day
- May 23, 2027
- Location
- Clayton, CA
Race details
- Date
- Sunday, May 23, 2027
- Location
- Clayton, California
- Distances
- 4 Miles, 10 Miles, 5K, 10K, 30.4 Miles, 50 Yards, 2 Miles
- Course
- 3420 ft gain
- Registration
- runsignup.com
Registration, course & weather
- Registration status
- Open
- Start time
- 8:00 AM PDT
- Course profile — 50K
- Loop course; Mostly trail, some road; 8000 ft gain, 8000 ft loss (estimated from third-party elevation data)
- Course profile — Marathon
- Loop course; Mostly trail, some road; 6760 ft gain, 6760 ft loss (estimated from third-party elevation data)
- Course profile — 10 Miles
- Loop course; Trail surface; 2420 ft gain, 2420 ft loss (estimated from third-party elevation data)
- Course profile — 4 Miles
- Loop course; Trail surface; 400 ft gain, 400 ft loss (estimated from third-party elevation data)
- Course profile — Half Marathon
- Loop course; Mostly trail, some road; 3420 ft gain, 3420 ft loss (estimated from third-party elevation data)
About the Diablo Trail Run
Mount Diablo provides spectacular views of the San Francisco Bay Area and surrounding valleys. The 4 mile course is relatively flat and fast within Mitchell Canyon. The longer events are mountainous and very scenic. (Distances are accurately measured using a Rolatape® surveyor's measuring wheel.)
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Diablo Trail Run: common questions
- When is the Diablo Trail Run?
- The next confirmed date is Sunday, May 23, 2027.
- Where is the Diablo Trail Run held?
- In Clayton, California.
- What distances does the Diablo Trail Run offer?
- 4 Miles, 10 Miles, 5K, 10K, 30.4 Miles, 50 Yards and 2 Miles.
- How do I register for the Diablo Trail Run?
- Registration is handled by the organiser at runsignup.com. Entry fees, caps and deadlines are set there.
- Is registration open for the Diablo Trail Run?
- Yes — registration is open. Listed fee for the longest distance, $54 (from runsignup.com, checked October 18, 2026).
- What time does the Diablo Trail Run start?
- 8:00 AM PDT.
Plan this race in RaceRove
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