Chicago 7/11 Hour Endurance Run – Palos Trail Ultra | CUSS Running x Yeti

May 16, 2026 | 7 & 11 hours

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Welcome to the Chicago 7/11 Hour Endurance Run
Born from the same skatepark vibes and late-night gas station feasts that fueled its coastal origins, the Yeti 7/11 brings its iconic mix of endurance, camaraderie, and chaos to the heart of the Midwest! This isn’t just a race—it’s a celebration of trail running, questionable snack choices, and making memories loop after loop in Chicago’s very own outdoor playground.

The Basics

  • Date: Saturday, May 17th, 2025
  • Start Time: 7:00 AM
  • Packet Pick up 6am @ Race Start Location: Wolf Road Woods
    9800 Wolf Rd, Willow Springs, IL 60480

Choose Your Adventure

  • 7-Hour Endurance Run
  • 11-Hour Endurance Run
  • Awards for all catagories in both distances

The Course: A Chicago-Style Sampler

Loop Length: 4 miles

  • Single-track bliss under a canopy of restored forest
  • Double-track mischief through historic Palos Preserves
  • Rolling hills to get your quads talking
  • Quick, runnable sections for all skill levels

Special Chicago Touches:

  • Snap pics at the world’s first nuclear reactor site
  • Breathe in fresh pond vibes from unexpected views
  • Clear trail markings—no chance of wandering into Lake Michigan!

Pro Tip: Course GPX available on UltraPacer

The Experience

  • Hobby jog alongside friendly yetis
  • Turn every loop into a Chicago-style adventure
  • BYO deep dish pizza for post-race celebrations (optional but encouraged!)

The Famous 7/11 Aid Station

The Yeti’s signature snack haven, now with a Windy City twist:

  • Gourmet Hot Dogs (don’t ask, just eat)
  • Pixie Stick Fuel
  • Honey Bun Delicacies
  • Trailside Crackers & Chips
  • Water and electrolyte drinks to wash down the madness
  • BYO Cooler: Vegan, keto, or Chicago-style diets welcome!

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