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Ultramarathon Races in Crystal Lake

Find Ultramarathon running races in Crystal Lake. Browse upcoming ultramarathon events, registration details, and race information for 2026.

1 race found

Trail

Earth Day 50k/15 Mile/5 Mile

18 Apr 2026
Crystal Lake, United States
50km · Ultra

Earth Day 50k/15 Mile/5 Mile is a 50 km ultra trail race held in Crystal Lake, IL. The event takes place in April 2026.

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