A Cancer Research UK marathon runner.

Find your next challenge

We have places in some of the UK's best running and challenge events. Fundraising from these events helps raise vital funds for our life-saving work.

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Woman covered in mud leaving a mud puddle and smiling during the CRUK Tough Mudder event.

Tough Mudder series

Take on a Tough Mudder for Cancer Research UK. All Tough Mudder events will be 10+ miles with over 20 Obstacles to complete on the day so challenge yourself in the ultimate obstacle course, designed to push you to your limits.

Join Team Cancer Research UK

Already have a place in an event? We’d love to have you fundraising for #TeamCRUK! Get your fundraising pack today.

Learn how to join