Mountain Tiger Diablo

OCT
10
2026
A 12.4 mile loop from Mitchell Canyon to the Mount Diablo summit and back, with about 4,000 feet of elevation change, a 5 hour cutoff, and shuttle service.
Sat 10 Oct 2026
12 miles

Always double-check with the organizer's website! This page may contain affiliate links.

About the race

Mountain Tiger Diablo is a trail race in Clayton, California that follows a direct route to the Mount Diablo summit and back. The course is a loop of 12.4 miles that starts and finishes at the Mitchell Canyon visitor area with a short spur on Summit Trail to reach the summit.

The route includes about 4,000 feet of total ascent and descent. Runners climb approximately 1,700 feet in the first 2.5 miles via Eagle Peak, continue up Bald Ridge Trail to the summit, then descend roughly 4,000 feet over about 6 miles via Prospector's Gap and Back Creek Trail back to Mitchell Canyon. There is a 5:00 cutoff for the course.

Entry fees change by date: $95 plus fees until August 31, $105 from September 1, and $120 from October 1. Registration closes October 7. Entry includes group shuttle service between an off-site parking area and the start/finish area, entry to the post-race raffle, and a unique finisher's item. The event has a no refunds policy and accepts 2027 rollovers until September 1.

The event location is listed as Mitchell Canyon, Clayton, CA. Visit the organization's website for the most recent information.

12 mi
12 Miler

Events nearby

Trail runs of 5K, 10K, half marathon and 35K around San Pablo Reservoir with chip timing, marked trails, cupless aid stations, and a 300 runner capacity.
Trail races on Mount Diablo in Walnut Creek on October 17, 2026 offering 30K, half marathon, 10K and 5K on hilly trails with possible mud and creek crossings.
Cross-country races at Radke Martinez Regional Shoreline on October 24, 2026 featuring three identical 4.1 mile races on grass, dirt, and path surfaces.
A fundraiser in Joaquin Miller Park featuring a 5 km trail race and a 1 mile fun run to support Oakland Tech PTSA and student programs.
Add Event
Help us complete the calendar!
  • Distance is at least 5 km
  • Event has a website or Facebook page
Website
Optional: Please provide your e-mail address if we may contact you.
Report a change
We will only update the data if the information is also on the website.