1 aidTrail Races & Ultramarathons Near Chicago, IL
As of October 6, 2026, Crewable lists 12 upcoming trail races and ultramarathons near Chicago, IL from October 2026 to April 2027. The next is Des Plaines River Trail Races on October 10 in Lake County, IL. Registration is open for 5.
Sources: UltraSignup, RunSignUp, UTMB, race organizers and race websites
With aid station data
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1 aidRace calendar
October 2026
6 racesRun for Your Life Race at Robinson Lake - 5K and Haunted Fun Run
Hobart, IN5K1 miOpen until Oct 24from $15
November 2026
3 racesJanuary 2027
1 raceApril 2027
2 racesQuick answers
What is the next trail race or ultramarathon near Chicago, IL?
Des Plaines River Trail Races, on Saturday, October 10, 2026, in Lake County, IL. Distances: 50 mi, 50K, Marathon.
What is the closest trail race or ultramarathon to Chicago?
Feral Nonsense in Morton Grove, IL, about 15 miles from Chicago, on November 14, 2026.
How many trail races and ultramarathons near Chicago, IL have open registration?
5 of the 12 list registration as open as of October 6, 2026, including Soul Crusher, Haunted Highlander Assault Trail Run and Run for Your Life Race at Robinson Lake - 5K and Haunted Fun Run.
How many of the trail races near Chicago, IL are ultramarathons?
7 of the 12 are ultramarathons (longer than a marathon, or a backyard, timed or 200+ mile format). The other 5 are shorter races.
What is the busiest month for trail races and ultramarathons near Chicago, IL?
October 2026, with 6 of the 12. November 2026 follows with 3.
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