Discover London’s most iconic landmarks in the only closed road half marathon to go through both City of London and City of Westminster.
Looking for a way to explore some of the finest landmarks London has to offer, while taking on a running challenge with a difference? This might be the race for you! From the Bowler hat send off to the Roman reception; amazing samba bands to the London Show Choir, runners and spectators alike will be kept entertained throughout the course.
• Registration is £30 per person and we ask each participant to reach a minimum fundraising target of £350.
• 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.
1. Start on Pall Mall with views of the River Thames.
2. Head up past Blackfriars and St Paul's Cathedral.
3. Loop back to pass the iconic Royal Courts of Justice.
4. Run into East London towards the historic Tower of London and Tower Bridge.
5. Turn back towards the centre of the city for the final few miles.
6. Continue along the river to reach Westminster Bridge and Big Ben.
7. Finish in the heart of London at Downing Street.
Your registration includes:
• Your race bib and welcome pack sent prior to the day, including your very own Royal Marsden Cancer Charity running vest.
• Fundraising support and advice from a dedicated member of staff at The Royal Marsden and access to our supportive Team Marsden runners Facebook group.
• Professional training plans to help you prepare for the big day.
• The loudest charity cheer points on the route to keep you motivated as you tackle the course.
Sally took part in the London Landmarks Half Marathon 2026 in the memory of her sister and in support of her family and friends who are affected by cancer.
"It was such an uplifting atmosphere. The supporters and entertainment all the way round gave it a real carnival feel! I would 100% recommend it. I had very little running experience when I signed up in the autumn, but if you follow a plan and take it 'step by step' it can be done!
I was proud to be wearing a Royal Marsden shirt and to be part of such a huge fundraising event."
Thanks to our supporters like Sally, we continue to be there for everyone who needs us to ensure we are providing the very best care and developing life-saving treatments.
Inspired? Take on the challenge yourself!

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