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2023 Team Challenge TCS London Marathon

Join us on April 23, 2023

Donate To This Event


London, GB



TCS London Marathon Expo


Checkin: 7:00 am - 3:30 pm

Event: 9:30 am - 3:00 pm


Kat Gunsur-Smith



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 TCS London Marathon? Click below and we’ll reach out to you!

Learn More


Join the Crohn’s & Colitis Foundation 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.

The TCS London Marathon is one of the six iconic World Marathon Majors events. Known for being a fast, record-setting course and a sightseer's dream, runners pass some of the capital's famous landmarks as they run around the River Thames. From the London Eye, the Tower of London and finishing at Buckingham Palace, competitors from more than 50 countries will join together to run or walk 26.2 miles on this world stage!

Register Now!

How it works

Start your journey as a member of Team Challenge!

Register & customize your page

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

Set your fundraising goal

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.