Runners at start line of Great North Run

Whether you’re chasing a personal best or trying something completely new, taking on a challenge event is an incredible way to help people trapped in modern slavery.

Please note: All our places for the London Landmarks Half Marathon and London Marathon in 2026 have now been filled.

If you’d like to be among the first to hear when places become available for future events, you can register your interest below.

Register your interest for future challenge events
Be the first to know when spaces open for upcoming events, including London Landmarks, the London Marathon and more. Run for freedom and make every mile count.

Register your interest now

Got a ballot place? Run for freedom
If you’ve secured a ballot place in the London Marathon, Landmarks Half, or any other running event, we’d love to welcome you to Team Anti-Slavery. There’s no fundraising minimum – just raise what you can, and we’ll be with you every step of the way.

Let us know you’re running for us, and we’ll send you a free supporter pack and help you set up your fundraising page.

Or create your own challenge
Sign up for any existing event or create your own fundraiser – whether it’s a run, cycle, hike, or something completely unique. However you choose to take part, every effort helps bring freedom to those affected by modern slavery.

Need inspiration? You can find a challenge event that inspires you on platforms like Run for Charity, Let’s Do This, or Find A Race, and set up your own fundraising page to support Anti-Slavery International.

Or why not order our Fundraise for Freedom Pack for ideas, tips, and everything you need to create your own fundraiser.

What you’ll receive from us

  • Expert support & advice – Our friendly team is here to guide you every step of the way.
  • An Anti-Slavery Int’l branded vest – Wear it proudly during your fundraising event.
  • Social media promotion – We’ll help spread the word about your fundraiser.
  • Finish line celebration – If you’re taking part in an event, we’ll be there to cheer you on!
  • Exclusive resources – Leaflets, fundraising guides, and more to help maximise your impact.
  • An Anti-Slavery Int’l certificate – A special thank-you when you meet your goal.


Have questions? We’d love to hear from you at [email protected].