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London 100 (25km)

London, England, United Kingdom
Saturday, May 9, 2026
58 days until race day
Typical Weather
Weather data for early May is not yet available for this race.

About This Race

London 100 (25km) covers a distance of 25.0 km. This non-standard distance offers a unique challenge that sets it apart from traditional race formats.

The race takes place in London, England, United Kingdom, offering participants a chance to experience the local running community and explore the area before or after the event.

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Race Distances

1K 0.62 mi
1 Mile 1.6 km
5K 3.1 mi · Entry-level, 20-40 min
10K 6.2 mi · Popular distance, 40-70 min
Half Marathon 21.1 km / 13.1 mi · Dedicated training needed
Marathon 42.2 km / 26.2 mi · Months of training
Ultra 50K+ · Beyond marathon, mental + physical

This race has a non-standard distance, offering a unique challenge.

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