Upcoming ultra marathons in Illinois

8 ultra marathons are coming up in Illinois, out of 329 races on the statewide calendar. Compare dates, distances and locations, then get ready with a personalized training plan.

8 upcoming races

September 2026

Sep 26, 2026Hindsight Ultra Trail Runs📍 Dixon, IL15.5 mi · 31.1 mi · 62.1 mi · 100 mi

October 2026

Oct 3, 2026The Hennepin Hundred📍 Sterling, IL31.1 mi · 50 mi · 100 mi
Oct 10, 2026DPR Trail Races📍 Lake County, IL13.1 mi · 26.2 mi · 31.1 mi · 50 mi
Oct 17, 2026Shake Your Trail Feather Trail Run📍 Charleston, IL3.1 mi · 8 mi · 16 mi · 31.1 mi
Oct 18, 2026Richardson Farm Fall 5K & 10K with Family 1 Mile Adventure Run📍 Spring Grove, IL6.2 mi · 3.1 mi · 1 mi · 100 m
Oct 24, 2026Fancy Nonsense 25k/50k📍 Willow Springs, IL5 mi · 15.5 mi · 31.1 mi

November 2026

Nov 14, 2026Tunnel Hill 100📍 Vienna, IL50 mi · 62.1 mi · 100 mi

April 2027

Apr 8, 2027Potawatomi Trail Runs📍 Pekin, IL200 mi · 150 mi · 100 mi · 50 mi

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