Aug 22, 2026 · 7:00 AM · Hudson, IL
Comlara 12 Hour Sunrise-Sunset, 6 Hour, 3 Hour and Hour of Power Trail Run
Half MarathonMarathonUltra
- Price
- $15.95-$52
Marathons in Illinois
Every upcoming Marathon race we know about in Illinois. Where a detail isn't confirmed, we mark it unknown rather than guessing.
Race results
Where
When
Showing 6+ of 7 races · loading the full list…
Sep 26, 2026 · 7:00 AM · Belleville, IL
Belleville Main Street Marathon & Half Marathon
Half MarathonMarathon
- Price
- $118.65-$129.30
Nov 7, 2026 · 8:00 AM · New Berlin, IL
14th Annual Springfield Marathon & Harvest Wind Half Marathon & 10K
10KHalf MarathonMarathonCertified course · per organizer
- Price
- $54-$75.20
- Field size
- 320 · based on the organizer's entry cap
Mar 27, 2027 · 8:30 AM · Benton, IL
Rend Lake Marathon
Half MarathonMarathon
- Price
- $55.16-$108.64
- Field size
- 350 · based on the organizer's entry cap
May 2, 2027 · 7:15 AM · Schaumburg, IL
Chicagoland Spring Marathon, Half Marathon & 10K
10KHalf MarathonMarathon
- Price
- $45.99-$114.99
May 8, 2027 · 7:30 AM · Palos Hills, IL
F^3 Cap Sauers Trail Marathon & 10 Mile
10MMarathon
- Price
- $75.45-$91.35
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