London 100
100K, 50K and 25K ultra marathon in London passing major landmarks on an urban route through the capital.
| Date | Saturday 9th May, 2026 |
|---|---|
| Distance | Ultra |
| Location | Queen Mother Sports Centre |
| Town/City | London |
| Area | London |
| Start postcode | SW1V 1EL |
| Start time | 9:00am |
| Website | Visit website |
| Run For Charity |  Start Fundraising On GoFundMe |
The London 100 is an urban ultra marathon in central London, offering 100K, 50K and 25K challenge distances on routes through the capital. The courses start and finish in central London and pass more than 100 landmarks, combining famous sights with lesser known trails and city paths.
The route explores different areas of London across a series of 25K sections, taking runners through riverside paths, parks, city streets and urban trails. Designed as an accessible ultra marathon experience, the event combines long distance endurance running with iconic London scenery and a fully supported city centre format.
London 100 starts at 07:00.
