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50K ultra runs in London

Find 50k ultra runs near me in London for 2025/2026 - filter by date or location, display on a map or use the advanced search to find your perfect race.

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The first half option of the Thames Path Challenge from leafy South West London on the River Thames along the river to Hampton Court to finish at Runnymede for a big celebration finish and hot meal!
  • Sat 13 Sep
  • £139
  • 17 charities
  • Sat 13 Sep
  • £139
  • 17 charities
London, UK

Thames Path Ultra Challenge | 1st Half

The first half option of the Thames Path Challenge from leafy South West London on the River Thames along the river to Hampton Court to finish at Runnymede for a big celebration finish and hot meal!

  • Chip timing
  • Enter online
  • GPS tracking
  • Flat
  • Undulating
  • Age 18 & over
  • 50 km trail running + 200 m ascent
  • Sun 7 Dec
Woodford Green, UK

SITC Dawn To Dusk Ultra | Ultra Marathon

  • 50 km road running

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