Illinois Marathons

13 upcoming marathons across Illinois, updated nightly. Want radius search and maps? Open these in the Race Finder.

When to race: marathons in Illinois

Illinois has 13 upcoming marathons over the next 12 months. October is the busiest month for them, with 5. Most are around Belleville, Moline, Lake County. The next one is Belleville Main Street Marathon & Half Marathon on September 26 in Belleville.

Sep 20262 races
Oct 20265 races
Nov 20262 races
Mar 20271 race
May 20273 races

Going deep on one race

Bank of America Chicago Marathon: fly the course in 3D

Fly the full course in 3D over real buildings, bridges and terrain, with the elevation profile, every named climb, and typical race day weather.

September 2026

Sat 9/26Belleville Main Street Marathon & Half MarathonBelleville, IL · Marathon · Half Marathon · Road · from $45 · register ↗
Sun 9/27TBK Bank Quad Cities MarathonMoline, IL · Marathon · Half Marathon · 10K · 5K · 1 Mile · register ↗

October 2026

Sat 10/10Des Plaines River Trail RacesLake County, IL · 50 Mile · 50K · Marathon · Half Marathon · Trail · register ↗
Sun 10/112026 Bank of America Chicago MarathonChicago, IL · Marathon · register ↗
Sat 10/17Red Sneakers Peoria 5K & Teal Pumpkin FestivalPeoria Heights, IL · 5K · 1 Mile · 8K · 25K · Marathon · register ↗
Sat 10/24Run to Pub Fall Marathon RelayTinley Park, IL · Marathon · register ↗
Sat 10/24Screaming PumpkinPeoria, IL · Marathon · Half Marathon · 6 Miles · 2 Mile · 6.5 Miles · register ↗

November 2026

Sat 11/714th Annual Springfield Marathon & Harvest Wind Half Marathon & 10KNew Berlin, IL · Marathon · Half Marathon · 10K · from $45 · register ↗
Sat 11/14Tunnel Hill 100Vienna, IL · 100 Mile · 100K · 50 Mile · Marathon · register ↗

March 2027

Sat 3/27Rend Lake MarathonBenton, IL · Marathon · Half Marathon · 6.5 Miles · from $50 · register ↗

May 2027

Sat 5/1River to River Marathon (2nd Annual)Louisiana, IL · Marathon · from $79 · register ↗
Sun 5/2Chicagoland Spring Marathon, Half Marathon & 10KSchaumburg, IL · Marathon · Half Marathon · 10K · from $40 · register ↗
Sat 5/8F^3 Cap Sauers Trail Marathon & 10 MilePalos Hills, IL · Marathon · 10 Mile · Trail · from $60 · register ↗

Planning a race

Boston qualifying timesthe BQ standard for every age group, and what the cutoff has really been
Choosing a first marathonwhat to look for in a debut race, and what to avoid

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