Dirt Circus - Chicago

Dirt Circus Chicago

Dirt Circus Chicago is a free community trail running festival in Crystal Lake, IL organized by UltraSignup. The one-day event brings together race directors, run clubs, local stores, brands, and vendors for a social run and an on-site expo featuring product booths, demos, and raffle prizes.

The festival program includes a group run followed by food options, beverages for purchase, and an expo area where participants can talk with race directors, learn about local races, and explore running shoes, hydration, and nutrition products. On-site vendors and partners listed for the event include HOKA, Saucony, BOCO Gear, Balega, and several local run clubs and race companies. A local store partner for the event is The Running Depot in Crystal Lake, IL.

The event is cupless; participants are expected to bring bottles or cups for water refills. Dogs are not allowed except for service animals. Preorder t-shirts specific to the Chicago edition were available during registration with a preorder deadline noted for May 10, 2026. Two route options are offered for the group run:

• 4.3 miles
• 6.8 miles

Registration for the event closed the evening before the event according to the event information. Visit the organization's website for the most recent information.