
Dirt Circus is a celebration of community and sport, a spectacle of all things trail running, an exhibition of what's possible when we come together on the trails.
Schedule
February 1: Tempe, AZ - See Photos!
May 10: San Luis Obispo, CA - Register Now!
June 15: San Francisco, CA - Register Now!
July 23: Seattle, WA - Registration Opens April 23
August 8: Boulder, CO - Registration Opens May 9
October 18: Flower Mound, TX - Registration Opens July 18
Stay tuned as we add more 2025 events!
free community events
Each community event is FREE but limited to around 250 attendees (subject to change per location).
- Celebrate local trail running, learn about local races and talk to race directors.
- Community Run with shoe demos from your favorite trail running brands.
- Raffles and giveaways!
- Race Expo - learn about local races, coaches, fitness experts, and local race clubs.
- Local brand reps hawking their wares
- Food, drinks, and more available for purchase
- Get exclusive running store discounts


Why a Circus?
Once upon a time, ultrarunning looked a little different. The sport has its roots in pedestrianism, where people would gather under the big top and walk and run for sport. Bets were made, the limits were pushed, and popularity soared. So come entertain yourselves with us, under the metaphorical big top.
Our goal is to connect runners with races and with one another, to highlight race directors, running stores, coaches, and the other local businesses that make up the fabric of our trail running community. The best way we know how to do that is by going for a run together. This sport is a little wild and we like it that way, so come join the Dirt Circus with us.
Meet with race directors, find your next event, run with friends, win prizes and more. Think of it as a live and in-person version of ultrasignup.com, but even more fun.
FAQs
Q: How much does it cost to attend Dirt Circus?
A: Dirt Circus community events are free!
Q: Where exactly will the events be in each city?
A: You can find this information on the individual event pages. We will continue to add more info as the permits are finalized.
Q: What will the community run be like? Who should participate?
A: The community run will be a 1 hour, no drop run. We encourage all event attendees to participate!
Q: I am a race director, how do I exhibit at a Dirt Circus event?
A: Reach out to Carrie Meng, cmeng@ultrasignup.com to get set up in the event expo.