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JDRF has now rebranded to Breakthrough T1D.
Our name has changed, our mission has not.

Runs

Bank of America Chicago Marathon 2025

Location: Chicago, USA Date: Sunday 12 October 2025
Chicago marathon start line with Bank of America banner

© 2022 Bank of America Chicago Marathon/Kevin Morris

About the event

We have now allocated all of our places in the Chicago Marathon 2025. Please check back later in the year for information on our places in the 2026 event.

We are so excited to have a small number of charity places in the 2025 Bank of America Chicago Marathon.

Part of the famous World Marathon Majors, the Chicago Marathon is a famously fast and flat course. Over the years, it has seen four world records and countless personal bests.

With over 50,000 people taking part and 1.7 million spectators cheering you on, the Chicago Marathon promises to be the experience of a lifetime!

Join Team Breakthrough T1D today to get started.

How to enter the Bank of America Chicago Marathon

Apply now for a charity place

Sponsorship target: £2,500

We have now allocated all of our places in the Chicago Marathon 2025.

Please complete our Chicago Marathon application form for one of our charity places. Once we have received this, we will endeavour to come back to you with the outcome within two weeks.

Please note, we do not charge a registration fee upfront to secure your place, but you will be expected to pay a registration fee directly to the race organisers. We anticipate this will be around $250 and you will need to pay this at the point of officially registering via their online entry console.

More information will be provided by our Events Team once we have allocated you a place.

Get a ballot place

Visit the official Bank of America Chicago Marathon website for more information on how to get your own place in this event.

If you are successful in getting a place in the general ballot and would like to support Breakthrough T1D, please complete our Own Place registration form.

Why run for Breakthrough T1D?

Whether you have a charity place or a ballot place, join Team Breakthrough T1D UK and you will receive the following:

  • Ongoing support from our dedicated events team with your fundraising and training.
  • A free* Breakthrough T1D running vest or tech t-shirt to wear with pride on the big day.
  • Access to a wide range of fundraising materials to help you reach your target.
  • Regular e-newsletters containing training and fundraising tips.
  • Free cheering materials and T-shirts for your family or friends going along to support you.

*Running tops will be sent out two to three months before the event to all runners who have raised £100 or more for Breakthrough T1D.

Chicago Marathon FAQs

Want to know more? Read our Chicago Marathon FAQs.

Get in touch

If you have a question we haven’t managed to cover in our FAQs, our friendly Events team are always on hand to help. Email us at events@breakthrought1d.org.ukwe’d love to hear from you! 

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