This is not a race but rather a beautiful place to gather as a trail running community. Whether you choose to run under the stars until the sun rises or head down to the campfire early to have a beer and roast some s'mores is up to you. There will be a pancake breakfast in the morning to send you home with smiles on your faces. Camping is free, cabins are discounted, and entry is only $12 bucks. 

Why hold a 12 hour night run? Twilight 12 Hour (previously Starlight Overnight) originated from a night run held on a ranch in Utah in 2015. A runner training for Wasatch 100 invited folks to join for some night miles on a 5 mile loop. The goal was to run from 8pm until the early hours of the morning to feel the fatigue of running several miles at night. The only requirement to participate was bringing your favorite aid station food. It was a fun, safe, no pressure way to get night training!  

The 2.6ish mile loop has a little bit of everything. From stretches of beautiful single track trail, to short ravines and a creek crossing, to a descent down a gravel road with a steep climb to close the loop, people spread out quickly.

Upcoming Races

Apr 25 2020
12 Hours
Multiple Loop Course
2 Elevation Rating
Rolling, ~2500 feet in 50 miles
2 Surface Rating
Mostly groomed trail or dirt roads

Results

12 Hours View course top times

Date Finishers Top Result Top Result (F)
04/27/19 No Results Posted. Submit Results
04/28/18 No Results Posted. Submit Results

9 Hours View course top times

Date Finishers Top Result Top Result (F)
04/22/17 No Results Posted. Submit Results
04/23/16 No Results Posted. Submit Results
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.

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Earth Day 50K
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  • Crystal Lake, IL
50 KM