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TCS London Marathon

Take part in one of the most popular marathons in the World and fundraise for our charity.

At 26.2 miles, the route takes in many of London’s best landmarks including Buckingham Palace, The Cutty Sark, Tower Bridge and Canary Wharf.

We are delighted to open a ballot for this year’s London Marathon to run for Once Upon a Smile in 2025!

Those lucky enough to receive a charity place from Once Upon a Smile will be given full support, before-during-and after race day.

How to apply:

Applications are now closed for this event. If you expressed interest in this event, you will be notified if you have been successful by the end of September.

Note for applicants:

  • Applying does not guarantee a place.
  • You will be required to pay a £50 registration fee once a place has been given.
  • By accessing a place for the London Marathon for Once Upon a Smile, we ask that you agree to fundraise a minimum of £2,500.
  • We cannot provide travel and hotel stay.


Want to run but can’t travel to London? We got you covered with the TCS London Marathon My Way.

Have further questions?

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Key information

27th April 2025

FREE

London

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TCS London Marathon

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