Dirt Circus - Los Angeles

On Saturday, August 29, 2026, Los Angeles will host its first-ever Dirt Circus, an exciting community-driven celebration of trail running and local racing culture organized by UltraSignup. This one-day festival aims to bring together runners from all walks of life for a day filled with camaraderie, fun runs, food stalls, raffles, and much more.
The event kicks off at 7:00 AM when participants can check in at A Snail's Pace Running Shop - Chino Hills. Upon arrival, attendees will receive an UltraSignup-branded "Shoe Bag Lite" (while supplies last) along with fuel goodies from various sponsors. The day promises to be a lively affair, featuring face-painting stations and glitter booths that add to the festive atmosphere.
At 8:00 AM sharp, runners will set off on a scenic 4-mile route that begins in Chino Hills and ventures onto nearby dirt trails. Organizers have thoughtfully arranged staggered departures to ensure smooth traffic flow along both paved streets and rugged paths, accommodating all running speeds from casual strolls to speedy jogs.
After returning from the run around 8:45 AM, participants can look forward to a range of activities until noon. Food vendors will be on hand offering delicious eats, while local businesses set up booths showcasing their products and services related to trail running and fitness. Attendees have the chance to meet race directors, learn about upcoming races in the area, and network with fellow runners.
The highlight for many will likely be the raffle drawing at 10:00 AM, where participants can win exciting prizes from brand partners such as Altra, Asics, Salomon, Performance Testing Los Angeles, and more. There's also a chance to interact directly with running clubs like Coffee Run Club, Long Beach Trailheads, and Run Club Girls.
Volunteers are an integral part of the event experience; they assist at check-in points, lead group runs, sweep trails behind runners for safety, and help manage raffle operations. If you're interested in volunteering, sign up through the provided link to receive exclusive swag and full access to all festivities on race day.
Don't forget to grab your limited-edition Dirt Circus T-shirt before preorders close on Sunday, August 9th. Each city's design is unique and only available during registration periods for that specific event. In addition to shirts, there will be plenty of other swag items up for grabs at the expo booths throughout the day.
So mark your calendars now for a fantastic day out in Chino Hills celebrating what makes trail running so special: its community spirit, scenic routes, and shared passion among runners from all backgrounds. See you under the metaphorical big top on August 29th!