Marathon · Illinois
Marathons in Illinois
Every marathon we track across Illinois, sorted by date. Each card shows deterministic 0–100 scores for beginner-friendliness, PR potential, value, vibe, and family appeal.
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Marathon
Tue, Jun 2, 2026
Country Club Hills, Illinois
road
Rolling
60PR40value45vibe
Marathon
Sat, Sep 26, 2026
Roscoe, Illinois
road
Rolling
60PR40value45vibe
Marathon
Sat, Sep 26, 2026
Belleville, Illinois
road
Rolling
60PR40value45vibe
Marathon
BQ
Sun, Oct 11, 2026
Chicago, Illinois
50K runners
road
Rolling
75PR40value45vibe
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Top metros in Illinois for marathons
Cities in Illinois with the most marathon races on the calendar.