Royal Parks Half Marathon 2025

Weave through some of London's iconic parks for this flat and friendly half marathon. The Royal Parks Half Marathon is London’s original half marathon.

Charity Places Sold Out!

We've sold out of charity places in the Royal Parks Half Marathon with Asthma + Lung UK! Join the waiting list for places by emailing us.

Join the Waiting List

What you'll get:

  • Personal support from our events team
  • Fundraising guides and materials
  • Training plans for all abilities
  • Personalised training support
  • Team breathe running vest
  • Loudest cheer points on the course

Got a ballot place?

If you’ve already got a place and paid your entry fee directly to the organiser, you can use your place to run for us!

Use your own place 

Sign up as a volunteer

Not a runner but still want to get involved in the event?

Register as a Cheer Squad volunteer and join us to support Team Breathe runners! We are looking for passionate individuals who want to drive lung health transformation and raise vital awareness for Asthma + Lung UK by cheering on our wonderful event participants. Meet new people, build connections and get one of our free t-shirts.

Get in touch

If you have any questions about the event, simply contact our events team at events@asthmaandlung.org.uk.