Register

The 2026 Abbott Chicago 5K will take place on Saturday, October 10, 2026.This scenic run through downtown Chicago gives everyone a chance to experience the excitement of Bank of America Chicago Marathon weekend and is the perfect way for marathoners, fans of the sport and friends and family to see the city in a whole new way.

Participants will receive a cozy knit hat and all finishers will receive a medal.

Registration for the 2026 event has reached capacity and is now closed. Join our e-newsletter list by filling out the form below to be notified when registration opens for 2027.

Cancellation (by you or by us)

Learn more about the options available to 2026 Abbott Chicago 5K registered participants if they choose not to participate or in the case event of an event cancellation.

Abbott Chicago 5K event requirements

• All Abbott Chicago 5K participants must be capable of maintaining a 15:00/mile pace, and completing the full 5K (3.1 miles) distance, start line to finish line, within the event time requirement of 45 minutes (mm:ss/45:59).
• Runners must be 8 years of age or older on the event day. Runners under 18 years of age must have the registration form completed by a parent or legal guardian permitting participation.
• Sale and/or transfer of race entries/bib numbers is strictly prohibited. All entry fees are non-refundable, and may not be deferred toward a future event.
• Read Official Event Rules and Guidelines