Saturday, September 25, 2027
Bong Nonsense
Whether you're a seasoned ultra marathoner or a passionate trail runner looking to push your limits, this event is designed for all skill levels and all the beautiful weirdos who love running in circles
Chicago trail & Ultra races
Four annual races that prove trail running doesn't have to take itself so seriously
Run with us around Chicagoland
While we remind you to cuss, run, and giggle, in that order.
Race Calendar
Join us for one or all of our races, Fancy Nonsense, Childish Nonsense, or Timely Nonsense, and our join race with the official Yeti Trail Runners
May 15, 2027
Chicago Yeti 7-11 Hour Endurance Run
The Yeti 7/11 Hour Endurance Run is where trail running meets convenience store culture in the most delightfully absurd way possible. Born from late-night gas station runs and questionable snack decisions, this endurance event celebrates the beautiful chaos of running loops while fueled by hot dogs and pixie sticks. Runners discover that sometimes the best trail fuel comes from the most unexpected places, creating memories one loop at a time through Chicago's restored forest playground.
Saturday, September 11, 2027
Timely Nonsense
Timely Nonsense is a quirky timed running event where the clock is both your friend and foe. Runners embrace the whimsy of racing against time itself, with courses sprinkled with magical moments and mischievous challenges.
Saturday, October, 23rd 2027
Fancy Nonsense
Fancy Nonsense is our autumnal running soirée where elegance meets whimsy on leaf-strewn trails. Runners don their most dapper attire to dash through a kaleidoscope of fall colors, crunching leaves underfoot. Always garnished with a touch of refined mischief, and occasionally accessorized by an unexpected cold snap.
Saturday, April 24th, 2027
Childish Nonsense
Our springtime event. A whimsical trail and ultra running event that embraces the joy of being silly and carefree. Always sprinkled with a little bit of magic. And sometimes bad weather.
What makes cuss races different?
Hourly challenges, inclusive community, fun atmosphere
- Small, intimate events where everyone gets to shine
- Family Friendly events
- Inclusive community that welcomes all paces
- Aid stations stocked with both ultra staples and quirky surprises
Registration & policies
Ready to register for one of our races?
Become an official volunteer at our races and events
Volunteering is a great way to understand the vibe of CUSS races before actually registering yourself! Though most of our volunteers have ran our races previously there are many who choose to volunteer first so than can peek behind the curtain of our magic show!
- Volunteer with us. Check out what it’s like to see a race from a different vantage point. Have fun and get a free race entry. Positive people need only apply!
Free Race Entry
