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London's longest run. Join us for London 100: Saturday 9 May 2026.London 100 is an urban-ultra and central London's only 100km event. Join us for our second event - we're in it for the long run!
London 100 starts and finishes at our central London run HQ. The route showcases the very best that the capital has to offer, taking in 100+ of London's top landmarks.
London 100 - 100km ultramarathon
London 50 - 50km ultramarathon
London 25 - 25km Central London run
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Event Venue & Nearby Stays
Queen Mother Sports Centre, Action for Southern Africa, Vauxhall Bridge Road, London, SW1P 1JQ, United Kingdom
Tickets
Concerts, fests, parties, meetups - all the happenings, one place.
