Dirt Circus - San Francisco
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Dirt Circus - San Francisco (June 6, 2026)
Dirt Circus - San Francisco is a one-day, free community running festival organized by UltraSignup. The event takes place in the San Francisco / Mill Valley area at 247 Shoreline Hwy, Mill Valley, CA. The festival highlights local races, run clubs, brands, race directors, coaches, and other local businesses. The program includes a social group run, an expo with brand booths, a pancake breakfast and other food, face decorating and a glitter station, and a raffle with apparel and partner swag.
Event details and logistics
The group run offers choices of:
- 3.2 mi casual route
- 4.5 mi casual route
All paces are accommodated and costumes are encouraged. The event is cupless - participants should bring personal bottles or cups for water refill. Dogs are not allowed except service animals. Local store partner: SF Run Co. Onsite vendors and run clubs are listed as coming soon. Registration opens March 6, 2026, and preorders for the event T-shirt close May 24, 2026. Parking is limited; on-site parking has 45 spaces. Alternative lots include Manzanita Park & Ride (about a half-mile walk/jog, 50 spaces) and Alamonte Blvd & Miller Ave (about a half-mile walk/jog, 30 spaces). Visit the organization's website for the most recent information.
