Saturday, Oct 7, 2023 @ 8:00 AM

Dirt Circus - Boulder

Runners Roost Boulder

Boulder, CO Community Run

This Event Took Place Sat. Oct 7, 2023

October 7, 2023

Come Run, Come All to Dirt Circus Boulder!

The Dirt Circus is coming to Boulder, Colorado. Dirt Circus is an event series created by UltraSignup to bring together the local running community and celebrate everything we love about trail running. The one-day festival will highlight local run companies and clubs and includes a social run as a community, food, entertainment, camaraderie, and so much more. Come and join us under the big top.

For information on Dirt Circus events in other cities check out!

Local Store Partner

We're excited to partner with Runners Roost Boulder and have local run companies join us for the event!

Origin Story

In 2020, UltraSignup sold to new owners, a group of runners who were amazed by how the trail running community rallied to support one another through the pandemic. They had an idea to celebrate trail running in a whole new way in late 2021, organized the first Trail Party. The response was incredible. The community was hungry to connect, to gather, to celebrate all things trail running. And so in 2023, we took all that enthusiasm and dreamed up the Dirt Circus.

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.

Event Details

Schedule, October 7, 2023

8:30am - Group Run Check-in at Runners Roost Boulder.
Give yourself time to mingle, talk to brands, maybe try some demos, and get ready to run!

9:00am - Group Run Starts
Enjoy a casual run with friends from the local run community. Options for a 5K route or a longer distance. The group will break up to ensure we don't overrun the trails and that all running paces are accommodated.

10:30am - 11:00am - Return from Group Run, Mingle - Enter Raffles by 11:00!

11:00am - 1:00pm - Brand Expo, Panel Conversations
We'll have brand booths and tables set up around Runners Roost.>br/>

11:30: Food is available at nearby at the Southern Sun Brewery.
12:00: Panel discussions begin.
12:30: Raffle Prizes drawn

Raffles & Giveaways!

  • We will be raffling off 1 GoPro Hero 11 camera!
  • UltraSignup apparel & swag
  • More from the brands on site!
  • All attendees will receive an exclusive discount to Runners Roost.

All those registered will be entered for a chance to be one of three UltraSignup merch winners!

PreOrder the Original Dirt Circus T-Shirt specific to each city. City-specific shirts are only available for purchase during registration. These shirt sales close on Sunday September 24, 2023. We'll have more options for Dirt Circus and UltraSignup swag to purchase on site.

Other swag available in person from our partners in prizes, raffles and for purchase!

Expo Partners & Sponsors

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 Boulder!

Race Companies, Local Partners & Brands

Gnar Runners
Bear Chase Race Series
Aravaipa Running
Boundless Coaching
Anelise Normann - 67 Designs
Life's 2 Short Fitness
Colorado Psychotherapy & Sport Performance
Craft Sportswear
Group Run Finder


UltraSignup Store

Shop UltraSignup gear and apparel in the UltraSignup Store.

Event's current local time: 11:57 AM MT

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