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Ultra runs in London in September 2025

Find ultra runs near me in London in September 2025 - search by date or place, display on a map or use the advanced search to find your perfect race.

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The full, non-stop option of the Thames Path Challenge from leafy South West London following the river to Hampton Court, Runnymede to finish at Henley-on-Thames for a celebratory finish and BBQ.
  • Sat 13 - Sun 14 Sep 2025
  • 11 charities
  • Sat 13 - Sun 14 Sep 2025
  • 11 charities
London, UK

Thames Path Challenge | Full 100km continuous charity places

The full, non-stop option of the Thames Path Challenge from leafy South West London following the river to Hampton Court, Runnymede to finish at Henley-on-Thames for a celebratory finish and BBQ.

  • Chip timing
  • Enter online
  • GPS tracking
  • Flat
  • Undulating
  • Age 18 & over
  • 100 km trail running + 350 m ascent
The full distance option of the Thames Path Challenge over 2 days with 50km on day 1 and 50km on day 2, meaning you experience the route in daylight with the chance to sleep overnight.
  • Sat 13 - Sun 14 Sep 2025
  • 11 charities
  • Sat 13 - Sun 14 Sep 2025
  • 11 charities
London, UK

Thames Path Challenge | Full 100km over 2 days charity places

The full distance option of the Thames Path Challenge over 2 days with 50km on day 1 and 50km on day 2, meaning you experience the route in daylight with the chance to sleep overnight.

  • Chip timing
  • Enter online
  • GPS tracking
  • Undulating
  • Age 18 & over
  • 100 km trail running + 350 m ascent
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 2025
  • 11 charities
  • Sat 13 Sep 2025
  • 11 charities
London, UK

Thames Path Challenge | 1st Half charity places

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 16 & over
  • 50 km trail running + 200 m ascent
England’s greatest river provides a fantastic backdrop for an unforgettable 'festival' charity challenge weekend, with distances from 10km right up to 100km there’s a Thames Challenge for everyone!
  • Sat 13 Sep 2025
  • 11 charities
  • Sat 13 Sep 2025
  • 11 charities
London, UK

Thames Path Ultra Challenge | 3/4 Challenge charity places

England’s greatest river provides a fantastic backdrop for an unforgettable 'festival' charity challenge weekend, with distances from 10km right up to 100km there’s a Thames Challenge for everyone!

  • Chip timing
  • Enter online
  • GPS tracking
  • Flat
  • Age 18 & over
  • 72 km trail running + 60 m ascent

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