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London 100
25 · 50 · 100 km +3
6
€68 – €148
About this event
London 100 turns the capital into an ultramarathon playground, weaving through the city's most iconic streets and parks. The route connects over 100 landmarks, from historic monuments to riverside paths along the Thames, all professionally marked and supported. Starting and finishing from Run HQ in Central London, runners can choose from three distances: a full 100km ultra for experienced endurance athletes, a 50km challenge, or a 25km introduction to urban ultra-running. It's a rare chance to experience London's character on foot, where every mile brings new architecture, history, and the unique energy of running through one of the world's great cities.
Distances
| Distance | Level | Start | Price |
|---|---|---|---|
| 25km | Intermediate | 09:00:00 | €68 |
| 50km | Advanced | 09:00:00 | €102 |
| 100km | Expert | 07:00:00 | €148 |
Find the races you'd actually enter
Free. Takes a minute.
- Connect Strava — see races that match what you run
- Create a group and plan this race together
- Share a ride to the start line
- Save it and track your season
€68 – €148
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