Running Races in Illinois — 2026

There are 538 running races in Illinois in 2026 across 275 cities. The next upcoming race is the C-U Triathlon in Champaign on July 19. Popular distances include 5K races, 10K races, half marathons.

Browse by City

Chicago 134 Springfield 29 Bloomington 18 Aurora 16 Rockford 16 Palatine 15 Normal 14 Elk Grove Village 14 Wheaton 13 Joliet 12 Hudson 11 Decatur 11 Belleville 10 Lisle 9 Crystal Lake 9 Evanston 9 Peoria 9 Elgin 8 Champaign 8 Lemont 8 Urbana 7 Edwardsville 7 Naperville 7 Plainfield 7 Shorewood 7 Herrin 6 Ottawa 6 Downers Grove 6 Roscoe 6 New Lenox 6

White Squirrel Kids Triathlon

Fri, Aug 7 · Olney, IL Olney
Triathlon Family Division - Non Richland County Youth (Ages 3 to 8)Iron Division - Non Richland County Youth (Ages 11 to 15)Sprint Division - Non Richland County Youth (Ages 9 to 12)
From $25 Open
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Miles for Marybeth 2026

Sat, Aug 8 · Elgin, IL Elgin
Virtual Bike Ride - Lock Haven, Pennsylvania38 Mile Bike Ride - IllinoisYour Virtual Activity for Miles for Marybeth 2026 +1
From $25 Open
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Sage City Triathlon

Sat, Aug 8 · Monticello, IL Monticello
Triathlon Mini Triathlon (100m swim, 5 mile bike, 1 mile run)Sprint Triathlon (300m swim, 13.5 mile bike, 3.1 mile run) Relay TeamSprint Triathlon (300m swim, 13.5 mile bike, 3.1 mile run)
From $55 Open Closing Soon
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White Squirrel Triathlon

Sat, Aug 8 · Olney, IL Olney
Triathlon White Squirrel Triathlon Team CategoryWhite Squirrel Triathlon Age GroupWhite Squirrel Triathlon zeus/Xena
From $65 Open
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Ben's Memorial Mile & Community Festival

Sat, Aug 8 · Downers Grove, IL Downers Grove
Virtual Elite Mile (6:30 or faster for 1 mile). There is an option later in this form to purchase a T-shirt for an additional $10.Open Mile (runners/walkers slower than 6:30 for 1 mile). There is an option later in this form to purchase a T-shirt for an additional $10.T-shirt (If you are not participating in the races but would like a T-shirt, select this option to purchase a T-shirt.)
From $10 Open Closing Soon
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To the Max Obstacle Challenge

Sun, Aug 9 · Normal, IL Normal
Trail 1:45PM: 5+ year olds for Individuals & Families (RECREATIONAL)1:30PM: 5+ year olds for Individuals & Families (RECREATIONAL)12:45PM: 13-14 year olds (COMPETITIVE) +8
From $25 Open Closing Soon 20 spots left
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Hull of a Race

Sat, Aug 15 · Hull, IL Hull
Road Kids 1/4 MileTimed 5K Competitive RunTimed Fun Walk/Wheel Chair and Baby Stroller Roll {RUNNING PROHIBITED} +1
From $10 Open
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Go Fish 5K & Kids' Color Run

Sat, Aug 15 · East Dundee, IL East Dundee
Road Go Fish Kids' Color Run/Walk (WITHOUT Family/Individual 5K registration)Go Fish 5K Run/Walk--Individual Registration (ONE tshirt included)Go Fish 5K Run/Walk--Family Registration (TWO tshirts included/up to 6 members)
From $15 Open
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Hill of a Race

Sat, Aug 15 · Bloomington, IL Bloomington
OCR Recreational Wave 2 - 9:10AMCompetitive - Women - Master's Division (40+) - 8:50AMCompetitive - Men - Master's Division (40+) - 8:30AM +15
From $40 Open 10 spots left
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North Shore Youth Triathlon

Sun, Aug 16 · Evanston, IL Evanston
Triathlon Youth Triathlon 11-14 Year Old RelayYouth Triathlon Splash & Dash 5-6 Year OldYouth Triathlon 11-14 Year Old +2
From $25 Open
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