3 events in Cook County, Illinois

From big races to Saturday morning group runs—find half marathon events and connect with the local endurance sports community.

• Hoffman Estates Stars & Stripes Half Marathon, 10K & 5K [allcommunityevents.com] [Register at runsignup.com]
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  Sat, Jun 27, 2026 at 7:30 AM

  Description

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  Hoffman Estates Stars & Stripes Half Marathon, 10K & 5K Run/Walk

  Hoffman Estates, IL - 06/27/2026

  Use #Stars&StripesRun when sharing your photos from the event. Finish with the American Flag,...

  Hoffman Estates Stars & Stripes Half Marathon, 10K & 5K Run/Walk

  Hoffman Estates, IL - 06/27/2026

  Use #Stars&StripesRun when sharing your photos from the event. Finish with the American Flag, finisher medals & finish line ice cream and bomb pops!

  Event times, dates, location and all other details are subject to change prior to the event. All official information is on the event's website AllCommunityEvents.com.

  5k 10k 13.1 Miles Half Marathon Run Walk

  2046 Lakewood Blvd, Cook County, Illinois, 60192, United States
  OpenStreetMap Google Maps
• Run the Gem [finishers.com] - Facebook
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  Sat, Sep 05, 2026

  Description

  Looking for a new running adventure? 🏃‍♂️ Are you on the hunt for a unique route and an incredible atmosphere? Don't miss the Run the Gem in Flossmoor! This race will take you through the hidden gems of this charming town in the Cook County 🌳.

  Half Marathon Run

  Cook County, Illinois, United States
  OpenStreetMap Google Maps
• The Hidden Gem Half Marathon 2026 [hiddengemhalf.com] [Register at raceroster.com]
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  Sat, Sep 12, 2026 at 7:30 AM

  Description

  The Gem is BACK!

  September 12, 2026

  Flossmoor, IL

  CARA 2025 RACE OF THE YEAR

  REGISTRATION OPENS SPRING '26

  Please Note: Runners must finish the race in three hours (No Walkers).

  More information:

  HERE

  21k Half Marathon Run Walk

  2800 Flossmoor Road, Cook County, Illinois, 60422, United States
  OpenStreetMap Google Maps

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