Skip to main content

JDRF has now rebranded to Breakthrough T1D.
Our name has changed, our mission has not.

Runs

Royal Parks Half Marathon 2025

Run on closed roads past many of London’s world-famous landmarks and through four of its eight Royal Parks.
Location: London, United Kingdom Date: Sunday 12 October 2025 Price: £35

Female runner in the park on a sunny day

About the event

The Royal Parks Half Marathon is London’s original half marathon.

Lucky participants get to run on closed roads through many of the capital’s world-famous landmarks and four of London’s eight Royal Parks – Hyde Park, The Green Park, St James’s Park and Kensington Gardens. Take on this iconic London route, and experience a run like no other!

How to enter the Royal Parks Half Marathon 2025

Secure your place in the Royal Parks Half Marathon 2025 with Breakthrough T1D today! 

Sign up for a charity place

Use your own place for the Royal Parks Half Marathon 2025

If you secure your own place with the race organisers or your running club, we would be delighted to have you join Team Breakthrough T1D and we will support you every step of the way.

You will receive all the benefits of a charity place runner – with no minimum sponsorship requirement! Fill out our own place form today.

Register your own place

How much do places cost?

Registration fee: £35
Minimum fundraising target: £350

Why run for Breakthrough T1D?

Our support includes:

  • Ongoing support from our friendly events team, including regular newsletters with training and fundraising tips
  • Access to fundraising materials, such as sponsorship forms, collection boxes and balloons
  • A free Breakthrough T1D running vest with your name on*
  • Cheering materials for your family and friends
  • The loudest voices cheering for you on race day

*Your Breakthrough T1D running vest will be sent to you once you have raised £100 towards your overall target. Vests are usually sent 1-2 months before the event.

Got any questions?

Don’t hesitate to get in touch with us on events@breakthrought1d.org.uk. We look forward to hearing from you!

You may also be interested in

If this event doesn’t quite fit the bill, there are loads more to choose from. Have a browse of our other running events:

Read more
Young athletes stretching in Breakthrough T1D vests with CGM shown on arm.
Triathlons
1 February to 29 March 2025

Virtual Triathlon Challenge 2025

Join our virtual triathlon by swimming, cycling and running – wherever and whenever you like!

Read more
Young man and woman runners in Breakthrough T1D running vests in a park
Runs
16 March 2025

Bath Half Marathon 2025

Join 15,000 other runners on this flat, picturesque course through the heart of Georgian Bath!

Read more
An aerial view of the Brighton Marathon finish line, alongside the beach and iconic pier
Runs
6 April 2025

Brighton Marathon 2025

The Brighton Marathon takes you from Preston Park, through the heart of the city and along the iconic seafront.

Read more
Illustrated route map for London landmarks half marathon
Runs
6 April 2025

London Landmarks Half Marathon 2025

From Pall Mall to Downing Street, runners will explore London's landmarks and hidden secrets on a route like no other.