Dirt Circus - San Franscisco

SoMa, United States • 15 Jun 2025

Dirt Circus - San Francisco is a free community running event held in San Francisco, California, celebrating local trail running culture. Organized by UltraSignup, this one-day festival features a social group run with options of 3.2 or 4.5 miles, welcoming all paces and encouraging participants to wear circus-themed costumes. The event fosters camaraderie among runners, race directors, coaches, and local running brands. After the run, attendees enjoy a pancake breakfast, an expo with vendors like adidas TERREX and Altra, and a raffle with prizes including race entries and running gear. The event highlights local races, run clubs, and businesses, creating a lively and inclusive atmosphere under the metaphorical "big top." Visit the organization's website for the most recent information.

Race information

4 mi
4.5mi
3 mi
3.2mi
Visit the organization's website for the most recent information.
Trail runs nearby

Explore Tiburon Peninsula trails at Go Wild! Marin in Corte Madera on October 11. Pick a 2 Hr or 4 Hr solo or team map run to find up to 24 checkpoints, then relax with refreshments and socializing.

Join the Ruth Anderson Memorial Endurance Run in San Francisco on October 11, 2025 for challenging looped ultramarathon distances. Choose from 100 km, 50 miles or 50 km on scenic Lake Merced loops with aid each circuit and chip timing.

Event overview The event is three cross-country races held at Miwok Meadows in China Camp State Park, San Rafael, CA. The races are run as a memorial to a Tamalpa Runner who died in 2000. Each race uses the same course as in 2024 and is rou..

Run scenic trails from Castle Rock Park into Mount Diablo State Park in Walnut Creek on October 18, 2025 with 5K, 10K, half marathon and summit 30K options. Expect dirt paths, creek crossings and panoramic summit views for all paces.

The Running Dead 5K Fun Run in Union City, California, is a Halloween-themed community race at Civic Center/City Hall (34009 Alvarado-Niles Road). It offers a 5K open to adults and a 5K Youth option for younger runners. The course follows t..

The 27th Annual Matt Yeo Memorial Aggie XC Open, presented by the HOKA Aggies, is held at Radke Martinez Regional Shoreline in Martinez, California. The meet features three 4.1-mile cross-country races for Women, Masters Men, and Open Men,..