Run South London is a brand new closed road half marathon bursting onto the scene. Whether you're lacing up for your very first race or chasing a new personal best, this event is for everyone!

Join us for the brand new closed road half marathon where thousands of runners will hit the streets for an unforgettable 13.1 mile journey through Morden, Wimbledon, and Merton. Expect an incredible atmosphere, buzzing crowds, and a course designed to inspire runners of all ages and abilities!
Once you’ve signed up, you’ll receive one to one support from a dedicated member of the charity team to help you with your fundraising efforts and to answer any questions you may have as you prepare for the big day.
You’ll also have access to our professional half marathon training plans to encourage you to start logging those miles. Whether it’s your first big race or you’re a seasoned runner, our plans will help structure your training to make sure you are ready for the challenge.
When you register, you will also be able to join our Team Marsden Runners Facebook group. Our fun, friendly and supportive online community will be there to support you all the way, share top tips and advice and keep you motivated in the run up to the event.
Have you got your own place in the 2027 event but still want to be part of Team Marsden and raise money to help people with cancer here and across the world? Just get in touch and let us know.
The full event route, including detailed course maps, will be released in the coming months, but here's what we do know for now!

Your registration includes:

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