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2023 Team Challenge Bank of America Chicago Marathon

Join us on October 8, 2023

Register Now! Donate To This Event


Chicago, IL



Grant Park


Checkin: 7:00 am - 5:00 pm

Event: 8:00 am - 5:00 pm


Mallory Cwik


We are sold out for 2023!
However, you can still register for this year’s event if you are an athlete with your own race entry.

Want to learn more about Team Challenge & the Bank of America Chicago Marathon? Click below and we’ll reach out to you!

Learn More


The Crohn's & Colitis Foundation is proud to be an official charity partner of the 2023 Bank of America Chicago Marathon. Join the Foundation's Team Challenge community as one of the thousands of runners making an impact with every mile. Every dollar raised will help support research, education, and support for those suffering from Crohn’s disease and ulcerative colitis — two debilitating digestive diseases.

Experience one of the six iconic World Marathon Majors events at the 2023 Bank of America Chicago Marathon! This event is the pinnacle of achievement for elite athletes and everyday runners. On race day, runners from around the world will set out to reach the finish line at Grant Park.

Thank you for making each mile more meaningful. See you at the finish line!

How it works

Register & customize your page

Your registration is the first step in your Team Challenge journey. Welcome to the team!

Make your commitment

Our team will be with you each step of the way, providing tips and resources to help you reach your fundraising commitment. You've got this!

Start fundraising & training

Log in to your personal fundraising page and start fundraising! Use email and social media to ask friends and family to donate as you train. 

Your fundraising impact

Invested over


in research

Added more than


restrooms in our We Can’t Wait app

Engaged with over


patients & caregivers in 2021

Hosted more than


campers at Camp Oasis since 1996



Crohn's and Colitis Foundation App

Fundraise More: Download the App

Raise more money and awareness right from the palm of your hand. Email your contacts for support directly from your phone, check fundraising progress, connect to social media, view event details, and more! Reaching your fundraising goal is easy and convenient when you have the app.