The Challenge is a 35-mile long, one-day, sunrise to sunset endurance hike on nearly the entire brutal Rachel Carson Trail. Unlike a footrace, the "challenge" is not to win, but to endure, to finish the hike in one day. This time, the Challenge starts in Harrison Hills Park at sunrise, 5:50 AM, and ends 35 miles later in North Park. The deadline for finishing is sunset, 8:54 PM or 15 hours 4 minutes.

If 35 miles sounds too daunting, we offer two shorter events that same day. The first is the Homestead Challenge, an 18-mile hike from near the Rachel Carson Homestead. The second is a 7-mile Friends & Family Challenge from Hartwood Acres Park. All events finish in North Park.

Upcoming Races

Jun 22 2019
34 Miles
Point-to-Point Course
Hilly, ~2500-7500 feet in 50 miles
Some rocks, root, and/or ruts


Date Distance Total Finishers Top Result Top Result (F)
06/23/18 34 Miles 444 5:49:13 7:58:34
06/24/17 34 Miles 431 7:19:04 6:56:34
06/18/16 34 Miles 452 6:20:13 8:21:44
06/20/15 34 Miles 375 6:41:04 7:53:39
06/21/14 34 Miles 475 7:00:14 7:08:40
06/22/13 37.5 Miles 384 7:13:14 7:52:41
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.

More events by Rachel Carson Trails Conservancy

Earth Day 50K
  • Apr 20, 2019
  • Crystal Lake, IL
50 KM