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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
  • Sat 13 Sep
  • £139
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
Move around the spectacular and hilly Cannock Chase Forest and earn a 50km ultra, with a generous cut off time this is a chance to smash a big goal on a tough course.
  • Sat 13 Sep
  • £70
  • Sat 13 Sep
  • £70
Rugeley, Staffordshire, UK

TrailFest | Cannock Chase Forest | 50K

Move around the spectacular and hilly Cannock Chase Forest and earn a 50km ultra, with a generous cut off time this is a chance to smash a big goal on a tough course.

  • Chip timing
  • Enter online
  • Hilly
  • Traffic free
  • Age 21 & over
  • 50 km trail running + 1118 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
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
  • Sat 13 - Sun 14 Sep
  • £139
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
Who doesn't know and love The Fraggles! Come and join Saturn Running for the Fraggle Run and earn a medal based on the adorable little creatures!!
  • Sat 20 Sep
  • £22-£35
  • Sat 20 Sep
  • £22-£35
Aberdare, Mid Glamorgan, UK

Fraggle Run - Wales | 50K

Who doesn't know and love The Fraggles! Come and join Saturn Running for the Fraggle Run and earn a medal based on the adorable little creatures!!

  • Enter online
  • Age 20 & over
  • 50 km road running
Who doesn't know and love The Fraggles! Come and join Saturn Running for the Fraggle Run and earn a medal based on the adorable little creatures!!
  • Sun 21 Sep
  • £23-£35
  • Sun 21 Sep
  • £23-£35
Staines, Surrey, UK

Fraggle Run | 50K

Who doesn't know and love The Fraggles! Come and join Saturn Running for the Fraggle Run and earn a medal based on the adorable little creatures!!

  • Enter online
  • Age 20 & over
  • 50 km road running + 0 ft 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
  • Sat 27 Sep
  • £139
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
Welcome to a 6-hour timed running event where you can run an ultra at your own pace on a flat, looped route, with fuel stations each lap, and a medal and goody bag at the finish.
  • Sat 27 Sep
  • £26-£28
  • Sat 27 Sep
  • £26-£28
Lincoln, Lincolnshire, UK

Runaway Challenge | Ultra Marathon

Welcome to a 6-hour timed running event where you can run an ultra at your own pace on a flat, looped route, with fuel stations each lap, and a medal and goody bag at the finish.

  • Enter online
  • Flat
  • Traffic free
  • Age 20 & over
  • 32 miles trail running + 301 ft ascent
Anyone know what a group of otters is called?? A romp!!! So Saturn Running is holding an event inspired by these adorable little creatures and the medal is super cute too!
  • Sat 27 Sep
  • £23-£35
  • Sat 27 Sep
  • £23-£35
Staines, Surrey, UK

Romp Run | 50K

Anyone know what a group of otters is called?? A romp!!! So Saturn Running is holding an event inspired by these adorable little creatures and the medal is super cute too!

  • Enter online
  • Age 20 & over
  • 50 km road running + 0 ft ascent
  • Sat 6 Sep
Okehampton, Devon, UK

Dartmoor In A Day Ultra | 50K Ultra

  • 50 km trail running
  • Sat 13 Sep
Lowestoft, Suffolk, UK

Suffolk Coastal Path 50K

  • 50 km trail running + 120 m ascent
  • Sat 20 Sep
Berwick-upon-Tweed, Northumberland, UK

Pilgrims Ultra | 50K

  • 50 km trail running + 1700 ft ascent
  • Sat 20 Sep
Hawes, North Yorkshire, UK

Pen-Y-Ghent Ultra

  • 50 km trail running + 1280 m ascent
  • Sat 20 Sep
Maidstone, Kent, UK

Triple Trail Races | 50K

  • 50 km trail running + 3550 ft ascent
  • Sat 27 Sep
Bedford, Bedfordshire, UK

Harrold-Odell Country Park Trail Run | 50K

  • 50 km trail running
  • Sat 27 Sep
Lewes, East Sussex, UK

Dark Downs 50K Race

  • 50 km trail running + 4200 ft ascent

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