from $30
RegisterIllinois ultramarathons
Ultramarathons in Illinois
4 upcoming ultramarathons in Illinois listed by date, with cities, start times, and entry fees. Find a ultramarathon near you and register.
4
upcoming races
0
cities with 3+
October 2026
November 2026
from $62.50
RegisterDecember 2026
from $25
RegisterJune 2027
Red Cedar Trail Races at Giant City State Park
Makanda, Illinois7:00 AM startTrail
from $15
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