Chicago Marathon 2026

Alongside London, the Bank of America Chicago Marathon is one of the iconic events that make up the World Marathon Majors. Renowned for its flat and fast course, Chicago has a long history of record-breaking performances and is widely considered one of the best marathons in the world for first-timers and seasoned runners alike.

Run with Team Ambitious, take on the streets of Chicago, and help us support autistic young people and their families.

If you’re up for this epic challenge, the events team would love to hear from you!

We have a very limited number of guaranteed entries available. If you're interested in joining the team, please apply here. We ask our runners to pay a registration fee and commit to a minimum fundraising pledge.*

Registration fee: £95
Fundraising pledge: £2,000

*Please note participants are responsible for arranging and paying for their own travel, insurance, and accommodation.

How we will support you

As a part of Team Ambitious you will receive:  

• an Ambitious about Autism technical running vest  
• supporter t-shirts for your squad  
• access to online training hub and dedicated Strava group  
• access to a range of digital resources to support your fundraising
• support from our dedicated Events team.

Please note that unfortunately we are unable to accept applications from US residents. We obtain our places via a third party who are an international partner of the Bank of America Chicago Marathon and they are not able to offer places to US residents.