London Winter Run 2025 Registration. The cancer research uk london winter run is a 10k challenge through the heart of the city, passing world famous landmarks, and instantly recognisable areas that have been taken over. After unprecedented demand, the 2025 cancer research uk london winter run on sunday 23 february is now at full capacity, with 25,000 people set to take on our annual winter 10k.
Did you know that the entry fee you pay to enter the cancer research uk london winter run covers the costs of putting on this incredible city centre 10k run? You will pass live music.