Diablo Trail Run

Clayton, California, United States

May 23, 2027 - Sunday

4mi, 10mi, 50k, Half-marathon, Marathon, Ultra

Race Information

Here's your chance to choose from a variety of race distances on the trails of Mt. Diablo. Enjoy 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.

Race distances: 4-mile, 10-mile, half marathon, marathon, 50k.

T-shirts will be given to all pre-registered runners. Award medals are given to the 1st female and male finishers overall and top three finishers in each age group. All finishers will receive a custom medal and 50 Km finishers will also receive a custom coaster.

๐Ÿ‘ Run Pick of the Month: Golden Gate Half Marathon

๐Ÿ“San Francisco - Sunday November 1, 2026

๐Ÿ˜„ Why We Like This Run
โœ… The ultimate bucket-list experience
โœ… Be part of an amazing community
โœ… A distance for everyone

Join the 24th annual #RunTheBridge, a beloved San Francisco tradition that brings together runners of all levels for a world-class weekend. Whether you take on the 13.1-mile half marathon or the scenic 5K, you'll experience an incredible, high-energy atmosphere in the heart of the city.

The course offers a unique tour of San Francisco, blending urban charm with stunning waterfront paths. Most importantly, youโ€™ll cross the iconic Golden Gate Bridge twice, treating you to uninterrupted, sweeping views of the skyline and the bay for an unforgettable journey across a world-famous landmark.

Register Now

Free Plan for Beginner Runners

Receive a FREE training plan for beginner runners from our friends at None to Run

Are you looking to become a runner for the first time? Coming back to running after a hiatus? Our friends at None to Run have created a training plan for beginner runners

The None to Run Beginner Plan is super gradual and achievable, no matter your starting point.

In 12 weeks, youโ€™ll be able to run 25 minutes non-stop...and actually enjoy it!

Click the button below to get your free training plan.

Get Free Training Plan

Race Facts

Race Size: 100 - 500

Course Type: Trail

Boston Qualifier: No

Kids Run: Yes

Where to Stay

Use this map to find hotels and airbnb accommodation near this race location.