Diablo Trail Run

Sun, Sep 6, 2026, 4:00 AM PDT

Location: Diablo State Park (Mitchell Canyon Trailhead), 96 Mitchell Canyon Road, Clayton, CA 94517
Type: Run

Finish signup on the organizer site (check fees and dates there).

Race feel

Embrace the challenge and stunning vistas of the Diablo Trail Run, featuring mountainous trails and spectacular Bay Area views.

Scenic
Competitive

Experience the breathtaking Diablo Trail Run, offering spectacular views of the San Francisco Bay Area and surrounding valleys. This event features a challenging 30.4-mile mountainous trail course, perfect for those seeking an invigorating adventure. For a different pace, a relatively flat and fast 4-mile option winds through Mitchell Canyon. Prepare for a scenic journey on accurately measured trails, set against a backdrop of mild weather.

What to expect

Expect spectacular views of the San Francisco Bay Area.
Tackle mountainous terrain on longer trail distances.
Discover a relatively flat and fast 4-mile course within Mitchell Canyon.

Standout details

Spectacular Bay Area views
Mountainous trail challenge
Accurately measured course
Relatively flat 4-mile option

Distances & registration

5 options

Use the official signup link above for all distances.

10 Mile
1 option · closes Sep 6, 2026, 4:15 AM PDT
4mo 6d 22h 4m left
- 10 Mi
  Closes Sep 6, 2026, 4:15 AM PDT · From $64.60
Half Marathon
1 option · closes Sep 6, 2026, 4:15 AM PDT
4mo 6d 22h 4m left
- General entry
  Closes Sep 6, 2026, 4:15 AM PDT · From $75.20
Marathon
1 option · closes Sep 6, 2026, 4:15 AM PDT
4mo 6d 22h 4m left
- General entry
  Closes Sep 6, 2026, 4:15 AM PDT · From $85.80
30.4 Miles
1 option · closes Sep 6, 2026, 4:15 AM PDT
4mo 6d 22h 4m left
- 50K
  Closes Sep 6, 2026, 4:15 AM PDT · From $96.40
4 Mile
1 option · closes Sep 6, 2026, 4:30 AM PDT
4mo 6d 22h 19m left
- 4 Mi
  Closes Sep 6, 2026, 4:30 AM PDT · From $54.00

Summaries use public event text. Confirm schedule, fees, and rules on the official page before you sign up.

From the organizer

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.)