Earth Day 50k

Crystal Lake, United States • 18 Apr 2026

Event overview

The Earth Day trail races take place on April 18, 2026 at Veterans Acres in Crystal Lake, Illinois. The event offers multiple race distances and has a stated overall time limit of 8 hours to complete the race. Registration closes on April 10 at 11:59 PM CT. Early bird pricing is available until November 30. The Crystal Lake Park District is acknowledged as the venue partner.

Distances

  • 50K
  • 15 Mile
  • 5 Mile

Course and aid

The course is a 5 mile loop featuring single-track trail and rolling hills. All races start together in the ball field and route around a pond before runners enter the single track. There is one major aid station at the start/finish area offering homemade items and typical ultra food: cookies, PB&J, sports drink, soda, chips, and pretzels. Participants are encouraged to bring their own water bottle as the event is working toward being landfill-free.

Logistics, awards and policies

Race start and finish take place at Veterans Acres Main parking lot, 431 N. Walkup, Crystal Lake, IL 60014. Friday packet pick-up is 5:00 pm to 8:00 pm at Ornery Mule Racing headquarters, 824 S. Main Street, Crystal Lake. Race day packet pick-up is available in the pavilion near the main parking lot. Overall first place male and female awards are separate from age-group awards. Age-group categories are Under 29, 30-39, 40-49, 50-59, and 60+. Transfers and rollovers are permitted under specified deadlines; no refunds are issued. Coaching and nutrition services are offered with custom plans and coach communication options. Visit the organization's website for the most recent information.

Race information

50 km
50k
15 mi
15 Mile
5 mi
5 Mile
Visit the organization's website for the most recent information.
Trail runs nearby

Run winter single track in Crystal Lake at the Frozen Gnome on Jan 10, a Triple Black Diamond loop through Veteran Acres. Choose 50K, 10K or 50K relays for teams of 2 or 5 and warm up at the Gnome Depot with hot food and coffee.

Kick off your trail season in Crystal Lake with the 50K MASHUP SLAM on January 10, 2026. Join a Midwest series of challenging 50K and 53K races that reward cumulative finish times and finisher buckles.

Tackle the Fox Valley Winter Challenge 5K at Dick Young Forest Preserve, the first of a three race trail series that may feature snow, slush or mud. Finishers get a medal and single race entrants receive a cozy winter hat.

Chill out and race the Frozen Tundra IPA 5K along the Des Plaines River Trail in Lincolnshire, then warm up at a lively post race party at Half Day Brewing with beer, food and prizes. Limited to 300 spots so register early.