Dirt Circus - San Francisco

Dirt Circus - San Francisco

Dirt Circus in San Francisco, California is a one-day community running festival that brings together local races, run clubs, brands, and other running businesses. The event includes a social group run, an expo with vendor booths, a pancake breakfast, food and beverages, and a raffle with prizes from brand partners.

The group run offers casual route options and breaks into groups to accommodate different paces. Distances available:

• 3.2 mi casual route
• 4.5 mi casual route

Onsite activities include shoe demos, brand booths, face decorating and a glitter station, and an UltraSignup branded shoe bag given at check-in while supplies last. Onsite vendors listed for the event include adidas TERREX, La Sportiva, On Running, and others. Local partners and run clubs are participating, and race directors and coaches will be present.

The event is CUPLESS so participants should plan for water bottles or refill options. No dogs are allowed except service animals. Parking is limited; there are 45 on-site spaces and alternative parking options about a half-mile away with roughly 50 and 30 spaces respectively. Preorders for the city-specific Dirt Circus T-shirt close on May 17, 2026. Visit the organization's website for the most recent information.