The goal is simple: to run or jog 100km throughout the month of May. To help plan your month, that’s roughly 25km per week, or five 5km runs per week but these are just suggestions. You can split your runs however works best for your schedule.

The key is to commit to the challenge and stay consistent, so you can reach your 100k goal by Sunday 31st May 2026. 👟

Whether you’re a seasoned runner or just starting out, join our Run 100k in May challenge to support people living with and affected by diabetes, run on your schedule, your way, and feel your sense of achievement grow this spring.

💙 How to Get Started

If you’d like to join our amazing challenge community, register for the challenge here.

When you register and set up your fundraiser:

👕 You’ll receive a FREE Diabetes UK t-shirt to wear as you cover your miles!

🧢 Raise £50 or more and you could receive a Diabetes UK exclusive Foldable cap*.

🏅 Raise £100 or more and you could receive a challenge medal*.

P.S. Don’t forget to join the official Run 100k in May Group to meet your fellow challengers 😊

We can’t wait to see you hit those miles! 💪💙🧡