June 15, 2025
Come Run, Come All to Dirt Circus San Francisco!
The Dirt Circus is coming to San Francisco, California. Dirt Circus is a series of free community events organized by UltraSignup to celebrate local races, and race directors. We are bringing together the local running community to share everything we love about trail running. The one-day festival will highlight local races, run clubs, brands, and other local businesses. The event includes a social run, food, a raffle with tons of prizes, camaraderie, and so much more. Come and join us under the big top.For information on Dirt Circus events in other cities check out dirtcircus.ultrasignup.com + join our online community on Facebook!
Local Store Partner
We're excited to partner with SF Run Co and have local run companies join us for the event!
Race Directors & Vendors
Dirt Circus is a party to bring together the whole running community, not just runners, but also race companies, coaches, nutritionists, and running brands. See below for some of the partners who will join us in San Francisco!
Race Companies, Local Partners & Brands
Are you a race company or other local run business that wants to be a part of the event? Fill out this form, we'd love to have you.
Race Companies
Local Partners & Brands
Onsite Vendors
adidas TERREX, NNormal, Altra, La Sportiva, Mt Tam Sport & Spine, Victory Sportdesign, East Peak, Katemi
Swag Bags
Participants receive a sweet UltraSignup branded SILO "Shoe Bag Lite", while supplies last, filled with Energy Chews and Hydration from Skratch Labs, “Run Atomic Lite” socks from Sidas, Yellowbird hot sauce and more! (over $40 in value!)
Event Details
Schedule, June 15th, 2025
7:00 am Group Run check-in at: San Francisco Running Company.Give yourself time to check in, mingle, demo shoes, and get ready to run!8:00am - Group run starts!
All paces welcome, even walking. Enjoy a casual 3.2mi or 4.5mi run with friends from the local run community. The group will break up to ensure we don't overrun the trails and that all running paces are accommodated. Wear your best circus outfit! We encourage costumes and embracing the Dirt Circus vibe!
8:30-9:00am - Return from the Group Run and for the Festivities
Enjoy a pancake breakfast, food, beverages and the Dirt Circus Expo!
10:00am - Raffle, Expo, & Social Connections
Get excited for raffle prizes from brand partners, race entries, and cool swag & apparel! We'll have brand booths and tables set up around when you return from your run, whatever distance you chose. Talk to race directors, learn about local races, mingle with friends, learn about running shoes and apparel products, and maybe test out some hydration and nutrition brands!
Raffles & Giveaways!
- UltraSignup apparel & swag
- More from the Brands, Race Directors, and Run Clubs on site!
- We are also stoked to celebrate all the Fathers and Father-Figures this Sunday, we have a couple fun surprises up our sleeves! Hint: practice your juggling skills and bring your best dad joke!
Preorder Your Original Dirt Circus T-Shirt! Each city on the tour gets its own exclusive design—only available for purchase during registration! Don’t miss out on the San Fran edition, with preorders closing Sunday, June 1, 2025.
Plus, explore even more Dirt Circus and UltraSignup gear available for purchase onsite. And perhaps you'll score some swag from our partners in the free raffle!
Event Parking
Main Store Parking
We very much encourage carpooling, if possible, as parking is limited!
On-Site available with 45 spaces - if you snag one of these spots we will give you a SFRC parking pass when you arrive.
Runners are not allowed to park in the west parking section of the Tam Junction Shopping Center in front of other businesses.Note: No parking is allowed at Good Earth, Walgreens, or Roco Dance & Fitness.
Alternative Parking Options
Manzanita Park & Ride:Distance: Half-Mile walk/jog Southeast of SFRC Mill Valley.Spaces: 50 available.Access: Follow the path through the Holiday Inn Express parking lot to the bike path towards SFRC.
Walking path to SFRC from Manzanita Park & Ride
Alamonte Blvd & Miller Ave:Distance: Half-Mile walk/jog North of SFRC Mill Valley.Spaces: 30 available. Access: Follow Alamonte Blvd towards Shoreline Highway/CA Route 1.
Walking path from Alamonte & Miller
