Dirt Circus - Boulder

Boulder, Colorado. Free community event. The Dirt Circus returns on Saturday, August 8, 2026, starting at 7:00 AM at Runners Roost Boulder. Casual group run — choose 4.5 miles or 10 km. No registration fee. Expo with local race directors, run clubs, brands (Asics, Brooks, Hoka, On, La Sportiva, and more). Raffle with tons of prizes (race entries, swag, apparel). Cupless event — bring your own bottle or cup. NO DOGS (service animals excepted). 15% off all Runners Roost merchandise on event day. Exclusive Boulder edition Dirt Circus t‑shirt available for preorder (deadline July 19).

Location — Runners Roost Boulder:

• Runners Roost is a locally owned running store in Boulder, Colorado (address not specified — check event website)
• Boulder is known as the running capital of the United States — home to countless elite runners, run clubs, and trail running brands
• The group run will likely use the Boulder Creek Path or local trails (flat, fast, and scenic)

Dirt Circus — What Is It?

• A series of free community events organized by UltraSignup to celebrate local races, race directors, and the trail running community
• "Think of it as a live and in‑person version of UltraSignup.com, but even more fun."
• Goal: connect runners with races and with one another, highlight race directors, running stores, coaches, and local businesses
• The name "Dirt Circus" references the history of pedestrianism — people gathered under the big top to walk and run for sport. Bets were made, limits pushed, popularity soared.
• This is a free event — no registration fee

Schedule — Saturday, August 8, 2026:

• 7:00 AM — Group run check‑in at Runners Roost Boulder. Pick up your UltraSignup branded "Shoe Bag Lite" (while supplies last), fuel goodies, and face decorating/glitter station
• 8:00‑8:30 AM — Group run starts (waves every few minutes). Choose 4.5 miles or 10 km. Casual pace, social run
• 9:00‑9:30 AM — Return from run for festivities — food, beverages, and Dirt Circus Expo
• 10:00 AM‑12:00 PM — Raffle, expo, and social connections. Raffle prizes from brand partners, race entries, cool swag, and apparel

What's Included (Free):

• Group run entry (no cost)
• UltraSignup branded "Shoe Bag Lite" (while supplies last)
• Fuel goodies (nutrition samples)
• Face decorating and glitter station
• Access to expo with local race directors, run clubs, and brand booths
• Entry into raffle for prizes (race entries, swag, apparel)
• Food and beverages (water, electrolyte drinks, snacks)
• 15% off all Runners Roost merchandise on event day (for Dirt Circus participants)

Expo — Meet Local Race Directors, Run Clubs, and Brands:

• Onsite vendors: Asics, Brooks, Elite Massage, Hoka, On, La Sportiva, and more
• Run clubs: Black Men Run + TURF Denver, Coffee Run Club Boulder, Roxborough Running Club, and more
• Race companies: many local race directors will be present — ask about their events

Raffle Prizes:

• Race entries to local trail races
• Branded swag and apparel (shirts, hats, hydration vests, shoes?)
• Nutrition products and gear
• Winners announced during the expo (10:00 AM‑12:00 PM)

Cupless Event — No Disposable Cups:

• Bring your own bottle, cup, or hydration pack
• Water refills and Sparkling Electrolyte Drink (canned) will be available

Exclusive Dirt Circus T‑Shirt — Preorder Only:

• Each city gets its own exclusive design — Boulder edition
• Preorder deadline: Sunday, July 19, 2026
• Available for purchase during registration (separate from free event registration)
• Additional Dirt Circus swag and UltraSignup gear available at checkout and in the UltraSignup Store

Logistics — No Dogs, Free Event, No Registration Fee:

• NO DOGS allowed (service animals excepted)
• Free to attend — no registration fee
• You must still register (so organizers know how many people to expect) — registration closes Friday, August 7, 11:59 PM MT
• Parking available near Runners Roost Boulder (arrive early — limited spaces)
• Bib pickup: at check‑in on race morning (7:00 AM)
• No refunds? Not applicable (free event)

Sponsors & Partners (partial list):

• Asics, Brooks, Elite Massage, Hoka, On, La Sportiva, Runners Roost, UltraSignup

Other Dirt Circus Cities:

• Check dirtcircus.ultrasignup.com for events in other cities
• Join the online community on Facebook

Contact: UltraSignup — via event website.