Bank of America Chicago Marathon ACS Team DetermiNation Reservation System
Updated
Sunday, October 10, 2027, first start 5:00 AM, in Chicago (17 E Monroe St.). Distances: Marathon. Entry from $25.
- Date
- Sunday, October 10, 2027
- Start time
- 5:00 AM (earliest wave)
- Location
- 17 E Monroe St., Chicago, IL 60603
- Area
- Chicago (city), Chicago
- Distances
- Marathon
- Course
- Road or path
- Price
- $25 plus the platform's processing fee
- Next price increase
- None published
- Registration
- Open. Opened October 8, online signup closes Saturday, October 9, 2027
How to register
Registration is on RunSignup. Pick your distance, add any extras, and you'll get a confirmation email with your bib details.
Course and race notes
OUR RESERVATION SYSTEM WILL OPEN ON THURSDAY, OCTOBER 8. Please note: we will be out of the office supporting our 2026 Bank of America Chicago Marathon DetermiNation team through Sunday, October 11 and will follow up with anyone who registers on Monday, October 12. Join Our Team.
From the race's own listing. Check the race website for the course map and parking.
Source: RunSignup public race API, refreshed 2026-10-17. Details can change; the registration page is the final word.