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London 100 2026

09.05.2026Victoria, London (United Kingdom)
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10062.1 km mi

100kmlongest of 2 courses

At a glance

London 100 2026 took place on Saturday 9 May 2026 in Victoria, London (England, United Kingdom). Two distances to choose from: 50 and 100 km.

The organiser has not published the elevation gain yet.

The 2027 edition takes place on Saturday 12 June 2027. On Kliva, plan your pacing and nutrition for free, then send the plan to your watch.

London's longest run is an urban-ultra ultramarathon starting and finishing from a Run HQ in central London, showcasing the city's best landmarks.
From the organiser

2 courses

  1. 50km31.1mi

    London 50
    No index

  2. 100km62.1mi

    725 m D-2’379 ft D-

    100km
    No index
    GPX

Course analysis

100km100 km62.1 mi681 m D+2’234 ft D+

107effort kmⓘ100 km on the map · feels like 107 km62.1 mi on the map · feels like 107 km
D+
681 m2’234 ft
D−
725 m2’379 ft
Max alt.
112 m367 ft
Steepest
7%

Segments

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Elevation profile: 100km

3 m – 112 m10 ft – 367 ft

Race plan

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Where to stay

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