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50K ultra runs in UK in September 2025

Find 50k ultra runs near me in UK in September 2025 - 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
  • Entries close soon
  • Sat 13 Sep
  • £139
  • Entries close soon
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
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
  • £60-£62
  • Sat 13 Sep
  • £60-£62
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 20-80
  • 50 km trail running + 1500 ft ascent
Entries close soon
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
  • £139
  • Entries close soon
  • Sat 13 - Sun 14 Sep
  • £139
  • Entries close soon
Egham, Surrey, UK

Thames Path Ultra Challenge | 2nd Half

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
  • Age 18 & over
  • 50 km trail running + 150 m ascent
Take in the valleys of the dark peak and the scenic trails of the white peak and reach the highest point at 464m, with a 12-hour target time which is generous for runners and a brisk pace for hikers.
  • Sat 20 Sep
  • £60
  • Sat 20 Sep
  • £60
Hope Valley, Derbyshire, UK

Peak District Challenge | Bronze Challenge 50K

Take in the valleys of the dark peak and the scenic trails of the white peak and reach the highest point at 464m, with a 12-hour target time which is generous for runners and a brisk pace for hikers.

  • Enter online
  • GPS tracking
  • Hilly
  • Age 16 & over
  • 50 km trail running + 1140 m ascent
The full 50K route of the Chiltern 50 Ultra Challenge starts from basecamp in Henley on a loop via Greys Court, the Ridgeway, Shakespeare's Way, The Chilterns and Hambleden Village to a party finish!
  • Sat 27 Sep
  • £139
  • 12 charities
  • Sat 27 Sep
  • £139
  • 12 charities
Henley-on-Thames, Buckinghamshire, UK

Chiltern 50 Ultra Challenge | Full 50km

The full 50K route of the Chiltern 50 Ultra Challenge starts from basecamp in Henley on a loop via Greys Court, the Ridgeway, Shakespeare's Way, The Chilterns and Hambleden Village to a party finish!

  • Chip timing
  • Enter online
  • GPS tracking
  • Undulating
  • Age 18 & over
  • 50 km trail running + 920 m ascent
  • Sat 13 Sep
Rugeley, Staffordshire, UK

TrailFest | Cannock Chase Forest | 50K

  • 50 km trail running + 1118 m ascent
  • Sat 13 Sep
Lowestoft, Suffolk, UK

Suffolk Coastal Path 50K

  • 50 km trail running + 120 m ascent
  • Sat 27 Sep
Lewes, East Sussex, UK

Dark Downs 50K Race

  • 50 km trail running + 4200 ft ascent

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