London 100 2026 saw some new faces and some returning running legends. Each year the organising team plan to make some changes to the format and this year saw the two middle legs of South and North swap over and the 25km runners taking on the North for the first time. In the lead up to the May date there had been several weeks of non-stop rain and the forecast wasn’t looking too great. However the ultra endurance Gods were shining on us and on Saturday 9th May we all woke to

Saturday 10th May 2025 saw our first ever edition of London 100. When we dreamt of hosting this event we imagined runners from around the...

Welcome to London 100 - London's longest run. Central London's first ever 100 mile ultramarathon will be Saturday 10 May 2025. The event...