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Register now for one of our charity places in the Bank of America Chicago Marathon 2025

Complete the form below to submit your application. Contact events@breakthrought1d.org.uk or visit our event FAQs if you have any questions.
Content last reviewed and updated: 12.06.2025

Why join Team Breakthrough T1D?

Our support includes:

  • 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.

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