Ultras within 50 miles of Crystal Lake, IL on Weekdays
1. 4x4x48 Challenge
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Past DateMar 22, 2024Friday
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48M, 4M run
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Naperville, IL
35 miles point to pointDupage County, IL
2. tBunk Endurance Challenge
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Nov 7, 2025Friday
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200M, 150M, 15K trail run
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Whitewater, WI
47 miles point to pointWalworth County, WI
For the love of all that Is good And moisture wicking...
Though we Try To be accurate And On top Of things... Race details can change When we aren't lookin. And once in a while we simply make a mistake.
ALWAYS visit the race's website for the most complete and accurate race information.
ALWAYS visit the race's website for the most complete and accurate race information.