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50K ultra runs in Europe in September 2025

Find 50k ultra runs near me in Europe 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 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 18 & over
  • 50 km trail running + 200 m ascent
Scenic mixed-terrain route around Bewl Water on undulating rural wooded trails and quiet country lanes. The marathon course was previously rated one of the top UK marathons.
  • Sat 13 Sep 2025
  • £58-£60
  • Sat 13 Sep 2025
  • £58-£60
Wadhurst, East Sussex, UK

Bewl Water Autumn | Ultra

Scenic mixed-terrain route around Bewl Water on undulating rural wooded trails and quiet country lanes. The marathon course was previously rated one of the top UK marathons.

  • Chip timing
  • Enter online
  • Hilly
  • Age 20 & over
  • 50 km trail running
The second half option of the Thames Path Challenge from Runnymede along the meandering river through Cookham to Henley-on-Thames, home of the regatta, to a celebration finish and family BBQ.
  • Sat 13 - Sun 14 Sep 2025
  • 11 charities
  • Sat 13 - Sun 14 Sep 2025
  • 11 charities
Egham, Surrey, UK

Thames Path Challenge | 2nd Half charity places

The second half option of the Thames Path Challenge from Runnymede along the meandering river through Cookham to Henley-on-Thames, home of the regatta, to a celebration finish and family BBQ.

  • Chip timing
  • Enter online
  • GPS tracking
  • Flat
  • Undulating
  • Age 18 & over
  • 50 km trail running + 150 m ascent
The full distance option of the Chiltern 50 Challenge from basecamp in Henley on a loop via Greys Court, the Ridgeway, Shakespeare's Way, The Chilterns and Hambleden Village.
  • Sat 27 Sep 2025
  • 10 charities
  • Sat 27 Sep 2025
  • 10 charities
Henley-on-Thames, Buckinghamshire, UK

Chiltern 50 Ultra Challenge | Full 50km charity places

The full distance option of the Chiltern 50 Challenge from basecamp in Henley on a loop via Greys Court, the Ridgeway, Shakespeare's Way, The Chilterns and Hambleden Village.

  • Enter online
  • GPS tracking
  • Undulating
  • Age 18 & over
  • 50 km trail running + 920 m ascent
  • Sat 27 Sep 2025
Lewes, East Sussex, UK

Dark Downs 50K Race

  • 50 km trail running

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