The Cancer Research UK London Summer Run 10k to will take place in central London on Sunday 5th September 2021, starting from Trafalgar Square. The event is a special edition of the UK’s most popular 10k, the Cancer Research UK London Winter Run, which attracts over 20,000 participants annually. Runners of all abilities are invited to sign up from today to take on the challenge and raise money to help fund life-saving research.

A number of favourites will return on the route, with larger than life characters and live music scattered throughout the course close to world famous landmarks. Additionally, a number of new zones with a summer twist will be introduced including the Flamingo Flamboyance Frenzy, Penguin Beach Party, and Paradise Island. Every runner who completes the course will be welcomed by a team of lifeguards and presented with a high-quality medal to celebrate their achievement.

As one of the earlier running events to return following the pandemic, the safety of participants, crew and volunteers will be at the heart of every stage of planning. Initially only a limited number of public places for the event will be released at the ‘Early Entry’ price today, with further capacity made available at a later date.

Speaking about putting a summer spin on a winter favourite, Nick Rusling, CEO of the event organiser Human Race, said: “The feedback we have every year from our runners is incredible, they just love this event because it doesn’t take itself too seriously, yet feels professional at every stage. This edition is for all those who said the one thing we could improve is the temperature, well now you get your wish! We have exclusive use of the roads, so it’s a rare opportunity to explore the capital free of traffic, whilst keeping fit and raising crucial funds to help beat cancer. What’s not to like about that?”

Cancer Research UK has been the official charity of the London Winter Run since 2015. Since then, 93,000 runners have taken part and raised over £4m. A virtual version of the traditional winter event raised nearly £800,000 excluding gift aid earlier this year.

Gareth Mulcahy, Head of Events and Sports at Cancer Research UK said: “We’re incredibly grateful to everyone who signs up and takes part in the Cancer Research UK London Summer Run. We know many of the runners will have been affected by cancer in some way and thanks to their brilliant fundraising efforts we can continue funding our life-saving work.”

More information about the Cancer Research UK London Summer Run, along with the route and exclusive access to places in the event, can be found at