Illinois
Illinois Ultramarathon Calendar 2026-2027
Monthly updates for Illinois
Get new running races (and updates) in your inbox every month.
Explore the best ultramarathons in Illinois for 2026-2027! Our updated list features 29 exciting races across the region. Find your next race in Illinois below and join the running community at these great events!
November 2026
December 2026
January 2027
Monthly updates for Illinois
Get new running races (and updates) in your inbox every month.
March 2027
April 2027
May 2027
July 2027
August 2027