This course consists of a flat and fast 3.1 mile loop through a wetland nature preserve; 50k participants to complete 10 laps, and 25k participants to complete 5 laps within an 8 hour time cutoff for the event. Run past tidal marsh through maritime forest on a partial dirt trail and partial pavement sidewalk. We recommend choosing shoes appropriate for varied trail surface. Course is wide enough in all places for 2-3 runners abreast, providing for easy passing of other participants. Runners will go over three bridge crossings, and at no time will the tidal creek water cover the trail. Running this course will give racers plenty of opportunity to spot gators, turtles, waterfowl, and other marsh nature.

Upcoming Races

Jun 15 2019
50 KM
3.1 Mile loop
Single Loop Course
Flat or nearly flat
Paved or very smooth surface

Results

Date Distance Total Finishers Top Result Top Result (F)
06/23/18 50 KM 16 5:02:53 5:06:11
06/24/17 50 KM 10 4:54:02 6:38:42
06/18/16 50 KM 26 4:04:38 4:31:06
We try to keep the most accurate information about this race, but changes do happen. Always visit the official race website for the most up to date information.
Earth Day 50K
  • Apr 20, 2019
  • Crystal Lake, IL
50 KM