Cancer Research UK is the world's leading cancer charity dedicated to saving lives through research. They have been at the heart of progress that has already seen survival in the UK double in 50 years. 

Cancer Research UK's vital work is only made possible by the extraordinary efforts of people like you. By taking part in the London Winter Run 2025 and fundraising for Cancer Research UK, you'll help to fund life-saving discoveries and the research breakthroughs of tomorrow. 

Together we are beating cancer.