Come Run, Come All to Dirt Circus Boulder, a free community event by UltraSignup, together with Runners Roost!
The FREE one-day trail running festival will highlight local races, run clubs, brands, and other local businesses. The event includes a community social run, food, a raffle with tons of prizes, camaraderie, and so much more. Come and join us under the big top.
Advance registration required:
https://ultrasignup.com/register.aspx?did=123555
Join our online community at:
https://www.facebook.com/groups/1764061477492292
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.
Huge thanks to all our local race partners and to our brand partners including Sidas, Silo, and Skratch Labs!
All participants receive a sweet UltraSignup branded SILO "Shoe Bag Lite" filled with nutrition products from Skratch Labs, “Run Atomic Lite” socks from Sidas, Yellowbird hot sauce and more! (over $40 in value!)
EVENT DETAILS
Saturday, August 9, 2025
7:15 am
Group Run check-in at: Runners Roost Boulder
8:00 am
Group run starts!
All paces welcome, even walking.
8:30-9:30 am
Return from the Group Run to Runners Roost.
9:00 - 11:00
Drinks and food will be available and stick around for the raffle and RD expo!
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, and maybe test out some hydration and nutrition brands you haven't before! See less
Also check out other Sports events in Boulder, Trips & Adventurous Activities in Boulder, Business events in Boulder.
