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Diablo Trail Run

Name: Diablo Trail Run
Start: 2026-09-06
End: 2026-09-06
Location: Clayton

Clayton, United States • 6 Sep 2026

Diablo Trail Run

The Diablo Trail Run takes place in Mount Diablo State Park, starting from the Mitchell Canyon Trailhead in Clayton, California. The park offers views of the San Francisco Bay Area and the surrounding valleys. The event features several trail race options that follow specific paths within the park's natural terrain.

Participants can choose from a range of distances measured for accuracy with a surveyor's measuring wheel:

4 Miles
10 Miles
Half Marathon (13.1 Miles)
Marathon (26.2 Miles)
50K (30.4 Miles)
2 Miles
50 Yards (Kids Run)

The 4 Mile course is organized within Mitchell Canyon and consists of relatively flat terrain. In contrast, the longer race distances are mountainous. There is a dedicated run for children aged six years and younger, which consists of a 50 yard dash. All standard race events are classified as trail races, while the short children's dash and the 2 Mile testing event are categorized as running races. Visit the organization's website for the most recent information.

United States California Clayton

Race information

Website

30 mi

50k

26 mi

Marathon

13 mi

Half Marathon

10 mi

10 Mi

4 mi

4 Mi

Coastal Testing

Visit the organization's website for the most recent information.

Trail runs nearby

Fri - Mon Jun 26-29

The Rock The Loch Half Marathon

Live and virtual options at Lake Chabot feature 5K, 10K, and a half marathon with multiple aid stations, on-course nutrition, race apparel and a woodallion, post-race beverages, and a brewfest atmosphere.

Sunday Jun 28

Woodmonster Trail Race

Oakland

10 mi

A 10-mile trail race in Redwood Regional Park starting and finishing at Chabot Space & Sciences Center, featuring single-track trails, steep climbs including the Woodmonster, staggered handicap starts and a team competition.

Friday Jul 3

Independence Day Dash 5K - Livermore

Livermore

400 m

5 km

A community Independence Day event at Sycamore Grove Park featuring a flat 5K on mixed paved and dirt trails and a 400 meter kids run for ages 10 and under. T shirts are included with race fees.

Saturday Jul 4

Bay 2 Bankers 10K

Crissy Field East Beach

5 km

10 km

Map based 5K and 10K adventure starting at Ghirardelli Square. Teams of one to five navigate custom maps to tag checkpoints, then gather afterward for snacks and drinks in a rain or shine event.