London 100 2027
Pacing, fueling and crew sheet for the course you pick
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At a glance
London 100 2027 takes place on Saturday 12 June 2027 in Pimlico (England, United Kingdom). Three distances to choose from: 25, 50 and 100 km.
The organiser has not published the elevation gain yet.
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.
3 courses
Course analysis
100 km62.1 mi681 m D+2’234 ft D+
- D+
- 681 m2’234 ft
- D−
- 725 m2’379 ft
- Max alt.
- 112 m367 ft
- Steepest
- 7%
Segments
Elevation profile: 100 km
3 m – 112 m10 ft – 367 ft
Feels like these
- FORESTRAIL HIRUZEN-SHINJO 65.5 km40.7 mi · 96 km-effortOct 24, 2027 · Dates to be confirmed9’393 km away5’836.5 mi away
- Sinister 7 Ultra82.6 km51.3 mi · 105 km-effortJul 10, 20277’180 km away4’461.4 mi away
- Great White Ultra100.5 km62.4 mi · 109 km-effortAug 28, 202716’065 km away9’982.3 mi away
- Noosa Ultra-Trail79.9 km49.6 mi · 94 km-effortMar 20, 202716’415 km away10’199.8 mi away
Where to stay
Find a place to stay near Pimlico for the race.
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