December 2, 2026

Come Run, Come All to Dirt Circus San Antonio!

Dirt Circus is coming to San Antonio during The Running Event and San Antonio Marathon Week! 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 iRun Texas Broadway for the San Antonio Dirt Circus! iRun Texas is your local source for hand-picked and trail-tested gear.

Dirt Circus San Antonio Partners

This event is possible because of the local partnerships and sponsorship support of:

Sponsors


Community Partners


Race Companies


Onsite Vendors
Amphipod • Topo • Shokz • UCAN • and more!

Run Clubs
Coming Soon!

Event Details

Wednesday December 2, 2026
We are a CUPLESS event, so please bring your bottles for water refills + is supplying electrolytes. As much as we love our fur babies, NO DOGS allowed (except service animals) - thanks for understanding. And, don't forget your headlamps to help light up the trail!

5:30-6:30pm - Group Run Check-in at iRun Texas Broadway
Give yourself time to check in, mingle, demo shoes, and get ready to run. Participants will receive a sweet UltraSignup branded "Shoe Bag Lite" upon check-in (while supplies last). And to help ramp up the fun, we are partnering with for our face decorating, glitter station!

6:30pm - Group Run Starts!
Enjoy a casual 3.2-mile run with friends from the local run community. The group will break up by pace to ensure we don't overrun the trails.

7:00-7:30pm - Return from Group Run for the Festivities
Enjoy food, beverages, and the Dirt Circus Expo!

7:30-8:30pm - 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 iRun when you return from your run. Talk to Race Directors and learn about local races!

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 Antonio edition, with preorders closing Wednesday, November 11, 2026. Plus see more UltraSignup gear via the store link below.

Route

The route will be marked, but we encourage everyone to download the route to your phone or watch to help with navigation.

3.2-mile route in Brackenridge Park!

UltraSignup Store

Shop UltraSignup gear and apparel in the UltraSignup Store.

Event's current local time: 6:20 AM CT