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Marathons in Illinois, United States

84 upcoming marathons listed in Illinois across 5 cities. Next: Heatwave Half Marathon - Greater Chicago on August 2, 2026.

84marathons upcoming
5cities
August 2, 2026Next race
Marathon, Half marathon, Ultra, 10K, 5K, RelayDistances
Chicago, Illinois, United States
26SEP
21.1K
Oktoberfest Run 5K/10K/13.1 CHICAGO/EVANSTON
Chicago, Illinois, United States
September 26, 2026 SEP
Roscoe, Illinois, United States
26SEP
42.2K
Stone Bridge Half Marathon and 5k
Roscoe, Illinois, United States
September 26, 2026 SEP
Greater Chicago, Illinois, United States
27SEP
21.1K
Golden Harvest Half Marathon & 5k/10k - Greater Chicago
Greater Chicago, Illinois, United States
September 27, 2026 SEP
Chicago, Illinois, United States
27SEP
21.1K
Life Time Chicago Half Marathon + 5K
Chicago, Illinois, United States
September 27, 2026 SEP
Moline, Illinois, United States
27SEP
42.2K
TBK Bank Quad Cities Marathon
Moline, Illinois, United States
September 27, 2026 BQ Qualifier
Galena, Illinois, United States
03OCT
ULTRA
Galena Trail Run
Galena, Illinois, United States
October 3, 2026 OCT
Long Grove, Illinois, United States
03OCT
21.1K
Long Grove's Oktoberfest Half Marathon, 10K & 5K
Long Grove, Illinois, United States
October 3, 2026 OCT
Illinois, United States
04OCT
ULTRA
Harvest Wind Half Marathon & 10K
Illinois, United States
October 4, 2026 OCT
Chicago, Illinois, United States
10OCT
21.1K
Bagel Run 5K/10K/13.1 CHICAGO/EVANSTON
Chicago, Illinois, United States
October 10, 2026 OCT
Illinois, United States
10OCT
ULTRA
Nik's Home Run 7K
Illinois, United States
October 10, 2026 OCT
Rock Falls, Illinois, United States
10OCT
21.1K
Sauk Valley Apple Cider Run
Rock Falls, Illinois, United States
October 10, 2026 OCT
Bank of America Chicago Marathon
11OCT
42.2K
Bank of America Chicago Marathon
Chicago, Illinois, United States
October 11, 2026 BQ Qualifier
Chicago, Illinois, United States
17OCT
21.1K
Chicago Fall Classic Half Marathon, 10K & Hot Cider Hustle 5K
Chicago, Illinois, United States
October 17, 2026 OCT
Illinois, United States
17OCT
ULTRA
Country Sole Half Marathon
Illinois, United States
October 17, 2026 OCT
Orangeville, Illinois, United States
17OCT
21.1K
Run Stephenson County
Orangeville, Illinois, United States
October 17, 2026 OCT
Naperville, Illinois, United States
18OCT
21.1K
Endeavor Health Naperville Half Marathon, 10K & 5K
Naperville, Illinois, United States
October 18, 2026 Certified
Tinley Park, Illinois, United States
24OCT
42.2K
Run to Pub Fall Marathon Relay
Tinley Park, Illinois, United States
October 24, 2026 OCT
Peoria, Illinois, United States
24OCT
42.2K
Screaming Pumpkin
Peoria, Illinois, United States
October 24, 2026 OCT
Illinois, United States
25OCT
ULTRA
Halloween Run CHICAGO
Illinois, United States
October 25, 2026 OCT
Chicago, Illinois, United States
25OCT
ULTRA
Haunted Halloween Half Marathon & 5km
Chicago, Illinois, United States
October 25, 2026 OCT
Shorewood, Illinois, United States
25OCT
21.1K
Spooky Sprint - Greater Chicago
Shorewood, Illinois, United States
October 25, 2026 OCT
Quincy, Illinois, United States
25OCT
21.1K
Tri-State Warrior Run
Quincy, Illinois, United States
October 25, 2026 OCT
Illinois, United States
31OCT
ULTRA
Carrera de los Muertos
Illinois, United States
October 31, 2026 OCT
Willow Springs, Illinois, United States
31OCT
ULTRA
Fancy Nonsense 25k/50k
Willow Springs, Illinois, United States
October 31, 2026 OCT

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Cities

Place Marathons
Chicago 2
Naperville 2
Galena 1
Moline 1
Oak Park 1

Planning notes for Illinois, United States

Use this region page to shortlist 84 upcoming races by date, distance, registration path, and official source.

  • Next raceHeatwave Half Marathon - Greater Chicago on August 2, 2026
  • Busy monthsSeptember (22), October (21), November (13)
  • DistancesMarathon, Half marathon, Ultra, 10K, 5K, Relay
  • VerifyOpen each race page, then confirm details from its official, registration, course-map, or source link.

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