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50K ultra runs in South East in September 2025

Find 50k ultra runs near me in South East 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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An end-of-season looped charity challenge in some of the Chilterns' finest countryside, with historic trails, rolling hills, nature reserves and fantastic views with routes from 10km up to 50km.
  • Sat 28 Sep
  • £10-£30
  • Entries closed
  • Sat 28 Sep
  • £10-£30
  • Entries closed
Henley-on-Thames, Buckinghamshire, UK

Chiltern 50 Ultra Challenge

An end-of-season looped charity challenge in some of the Chilterns' finest countryside, with historic trails, rolling hills, nature reserves and fantastic views with routes from 10km up to 50km.

  • Newcomers
  • Music
  • Chip timing
  • Enter online
  • GPS tracking
  • Fundraising required
  • Hilly
  • Event village
  • Urban
  • Rural
  • Age 14 & over
  • 1 day trail running
Entries closed
An end-of-season charity challenge in the Garden of England with a looped route around the Kent Downs starting on the North Downs Way with picturesque scenery and full support all the way.
  • Sat 12 Oct
  • £10-£30
  • Entries closed
  • Sat 12 Oct
  • £10-£30
  • Entries closed
Maidstone, Kent, UK

Kent Downs 50 Ultra Challenge

An end-of-season charity challenge in the Garden of England with a looped route around the Kent Downs starting on the North Downs Way with picturesque scenery and full support all the way.

  • Newcomers
  • Entertainment
  • Music
  • Chip timing
  • Enter online
  • GPS tracking
  • Undulating
  • Event village
  • Rural
  • Age 14 & over
  • 1 day trail running
Walk, jog or run the stunning coastal paths of the Isle of Wight for a great charity cause, from the base camp at Chale, visiting historic Cowes and the iconic Needles en route.
  • Sat 3 - Sun 4 May 2025
  • £10-£40
  • 5 charities
  • Sat 3 - Sun 4 May 2025
  • £10-£40
  • 5 charities
Ventnor, Isle of Wight, UK

Isle of Wight Ultra Challenge

Walk, jog or run the stunning coastal paths of the Isle of Wight for a great charity cause, from the base camp at Chale, visiting historic Cowes and the iconic Needles en route.

  • Newcomers
  • Entertainment
  • Music
  • Chip timing
  • Enter online
  • GPS tracking
  • Fundraising required
  • Undulating
  • Event village
  • Age 14 & over
  • 1 day trail running
Scenic mixed-terrain route around Bewl Water on undulating rural wooded trails and quiet country lanes. The marathon on the same day was previously rated one of the top UK marathons.
  • Sat 10 May 2025
  • £58-£60
  • Sat 10 May 2025
  • £58-£60
Wadhurst, East Sussex, UK

Bewl Water Spring | Ultra

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

  • Chip timing
  • Enter online
  • Hilly
  • Age 18 & over
  • 50 km trail running
An ultra run to the south coast with top reviews, amazing scenery, wonderful trails and rolling downs before reaching the promenade finish line for your ice cream and medal!
  • Sat 10 May 2025
  • £63-£70
  • Sat 10 May 2025
  • £63-£70
Horsham, West Sussex, UK

Run to the Sea Brighton

An ultra run to the south coast with top reviews, amazing scenery, wonderful trails and rolling downs before reaching the promenade finish line for your ice cream and medal!

  • Newcomers
  • Chip timing
  • Enter online
  • Hilly
  • Event village
  • Age 20 & over
  • 50 km multi terrain running
Walk, jog or run along the capital to coast route for charity, with a range of distance options available and superb support all the way, for all abilities and experience levels.
  • Sat 24 - Sun 25 May 2025
  • £10-£40
  • 8 charities
  • Sat 24 - Sun 25 May 2025
  • £10-£40
  • 8 charities
Brighton, East Sussex, UK

London 2 Brighton Ultra Challenge

Walk, jog or run along the capital to coast route for charity, with a range of distance options available and superb support all the way, for all abilities and experience levels.

  • Entertainment
  • Chip timing
  • Enter online
  • GPS tracking
  • Fundraising required
  • Undulating
  • Event village
  • Age 14 & over
  • 1 day trail running
Head through the historic town of Arundel and witness the impressive Arundel Castle as you meander along the River Arun, across the South Downs in breathtaking surroundings.
  • Sat 21 Jun 2025
  • £75
  • Sat 21 Jun 2025
  • £75
Chichester, West Sussex, West Sussex, UK

Race to the King | 50K Castle

Head through the historic town of Arundel and witness the impressive Arundel Castle as you meander along the River Arun, across the South Downs in breathtaking surroundings.

  • Chip timing
  • Enter online
  • GPS tracking
  • Hilly
  • Age 18 & over
  • 50 km trail running + 2663 ft ascent
A coastal trail ultra through the ancient village of Bosham towards Chichester Harbour with panoramic views of this AONB, to finish at the fantastic basecamp with food and bars.
  • Sat 21 Jun 2025
  • £75
  • 1 charity
  • Sat 21 Jun 2025
  • £75
  • 1 charity
Chichester, West Sussex, West Sussex, UK

Race to the King | 50K Coastal

A coastal trail ultra through the ancient village of Bosham towards Chichester Harbour with panoramic views of this AONB, to finish at the fantastic basecamp with food and bars.

  • Chip timing
  • Enter online
  • GPS tracking
  • Undulating
  • Age 18 & over
  • 50 km trail running + 1885 ft ascent
Take on the first half of the UK's favourite ultramarathon and wander through woodland before coming down into the renowned ‘field of dreams’, to finish at the fantastic basecamp with food and bars.
  • Sat 12 Jul 2025
  • £85
  • 2 charities
  • Sat 12 Jul 2025
  • £85
  • 2 charities
Watlington, Oxfordshire, UK

Race to the Stones | 50K Saturday

Take on the first half of the UK's favourite ultramarathon and wander through woodland before coming down into the renowned ‘field of dreams’, to finish at the fantastic basecamp with food and bars.

  • Chip timing
  • Enter online
  • GPS tracking
  • Undulating
  • Age 18 & over
  • 50 km trail running + 1973 ft ascent
Starting from Basecamp, race 50K to complete the second day of Race to the Stones through the North Wessex Downs to the finish line at the incredible Avebury Stone Circle.
  • Sun 13 Jul 2025
  • £85
  • 2 charities
  • Sun 13 Jul 2025
  • £85
  • 2 charities
Wantage, Oxfordshire, UK

Race to the Stones | 50K Sunday

Starting from Basecamp, race 50K to complete the second day of Race to the Stones through the North Wessex Downs to the finish line at the incredible Avebury Stone Circle.

  • Chip timing
  • Enter online
  • GPS tracking
  • Undulating
  • Age 18 & over
  • 50 km trail running + 1731 ft ascent
The South Downs National Park is a superb backdrop for a real charity challenge featuring Beachy Head, the Seven Sisters and the South Downs Way with a choice of distances from 25km right up to 100km!
  • Sat 6 - Sun 7 Sep 2025
  • £30-£50
  • 15 charities
  • Sat 6 - Sun 7 Sep 2025
  • £30-£50
  • 15 charities
Eastbourne, East Sussex, UK

South Coast Ultra Challenge

The South Downs National Park is a superb backdrop for a real charity challenge featuring Beachy Head, the Seven Sisters and the South Downs Way with a choice of distances from 25km right up to 100km!

  • Newcomers
  • Music
  • Chip timing
  • Enter online
  • GPS tracking
  • Fundraising required
  • Undulating
  • Event village
  • Urban
  • Rural
  • Coast
  • Age 14 & over
  • 1 day trail running
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
  • Sat 28 Sep
Alresford, Hampshire, UK

Guided 50K Ultramarathon - Alresford, Hampshire

  • 50 km trail running
  • Sat 28 Sep
Dorking, Surrey, UK

The Two Towers 50K

  • 50 km trail running
  • Sat 5 Oct
Uckfield, East Sussex, UK

London South East Spartan Trifecta Weekend | Beast 21K - Saturday

  • 21 km multi terrain running
  • Sat 5 Oct
Uckfield, East Sussex, UK

London South East Spartan Trifecta Weekend | Ultra 50K - Saturday

  • 50 km multi terrain running
  • Sun 20 Oct
Chichester, West Sussex, UK

Running GP at Goodwood Motor Circuit | 50K

  • 50 km road running
  • Sat 26 Oct
Tadworth, Surrey, UK

Beat Box Hill | 50K

  • 50 km trail running
  • Sat 23 Nov
Dorking, Surrey, UK

The Copthorne Races | 50K

  • 50 km trail running
  • Sun 1 Dec
Chichester, West Sussex, UK

Running GP at Goodwood Motor Circuit | 50K

  • 50 km road running
  • Sun 8 Dec
Dorking, Surrey, UK

Hurtwood 50K

  • 50 km trail running
  • Sun 22 Dec
Maidstone, Kent, UK

Winter Wanderlust Marathon & Ultra | 50K Ultra

  • 50 km trail running
  • Sat 8 Feb 2025
Horndean, Hampshire, UK

Hibernal Hills 50K Race

  • 50 km trail running
  • Sun 23 Feb 2025
Dorking, Surrey, UK

North Downs Ridge 50K Trail Ultra

  • 50 km trail running
  • Sat 12 Apr 2025
Windsor, Berkshire, UK

Easter 50 Ultra Challenge

  • 1 day trail running

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