Earth Day 50k

Crystal Lake, United States • 18 Apr 2026

Earth Day 50k/15 Mile/5 Mile - Crystal Lake, IL

The event offers three trail race distances:

  • 50K
  • 15 Miler
  • 5 Miler

The course is a 5-mile loop routed on single track with rolling hills. The race is described as a PR trail race. All races start together from a ball field and runners pass around a pond before entering the single track to allow spacing.

There is one major aid station at the start/finish area. Aid station offerings include homemade items and typical ultra foods such as cookies, PB & J, sports drink, soda, chips, and pretzels. Organizers state they are working toward making the race landfill free and request that participants bring their own water bottle.

Awards are given to 1st overall male and female (separate from age-group awards) and to age groups for men and women in these brackets: Under 29; 30-39; 40-49; 50-59; 60+. Runners can only win awards in the distance for which they are registered. Changes to a registered distance must be made by April 8 to remain eligible for awards.

Packet pickup is available at Ornery Mule Racing Trailhead/Headquarters on the Friday before the event and on race day at the pavilion near the main parking lot. The event location is Veterans Acres, 431 N. Walkup, Crystal Lake, IL 60014. The event date is April 18, 2026. The race has an 8-hour completion limit. Early bird pricing runs through November 30. Registration closes April 10 at 11:59 PM CT. Visit the organization's website for the most recent information.

Race information

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

Trail 5K and a children's 1/4 mile at Kishwauketoe Nature Center in Williams Bay. The grass trail course passes through hills, woods and prairie, includes a water stop, parking across the street, and awards for top finishers.

The Kishwauketoe 5K will take place in Williams Bay on Saturday 4 July 2026. You can run 3 miles.

Continuous 3.1 miles loop race at Deer Grove East offering 40 or 50 mile options with a 12 hour cutoff. Centralized aid every lap, designated crew access, pacers allowed, and on-course medical support.

Loop-based trail event at Deer Grove East Forest Preserve in Palatine, Illinois. Distances run from 5K to 50K and each lap returns to a central aid station so athletes can decide how far to continue.

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