Diablo Trail Run

Sun, Sep 6, 2026, 8:00 AM PDT

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

Vibe analysis coming soon

Course feel, difficulty, and community fit are being added to this listing. Check back, and always confirm details on the official registration page.

Distances & registration

5 options

Registration for all distances is through the official signup link above.

4 Miles
Sun, Sep 6, 8:15 AM PDT · From $54.00
Opens Oct 23, 2025, 8:59 PM PDT · Closes Aug 30, 2026, 7:59 PM PDT
10 Miles
Sun, Sep 6, 8:00 AM PDT · From $64.60
Opens Oct 23, 2025, 8:59 PM PDT · Closes Aug 30, 2026, 7:59 PM PDT
13.1 Miles
Sun, Sep 6, 8:00 AM PDT · From $75.20
Opens Oct 23, 2025, 8:59 PM PDT · Closes Aug 30, 2026, 7:59 PM PDT

+ 2 more options

26.2 Miles
Sun, Sep 6, 8:00 AM PDT · From $85.80
Opens Oct 23, 2025, 8:59 PM PDT · Closes Aug 30, 2026, 7:59 PM PDT
30.4 Miles
Sun, Sep 6, 8:00 AM PDT · From $96.40
Opens Oct 23, 2025, 8:59 PM PDT · Closes Aug 30, 2026, 7:59 PM PDT

Vibe Check

Serious Test

Trail + hills, warm-day exposure

Mostly trail
Warm season

Based on terrain, weather, and distance data.

The course

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.)

Also in this area

Easier options nearby

Lower-difficulty races in the same state.