30 100K ultra runs in UK

Find 100k ultra runs near me in UK for 2024/2025 - search by date or place, display on a map or use the advanced search to find your perfect race.

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Walk, jog or run along the fabulous UNESCO World Heritage coastline for charity, starting at the picturesque Corfe Castle, with a range of distances to suit all abilities and full support too.
  • Sat 18 - Sun 19 May
  • £10-£40
  • Entries closed
  • Sat 18 - Sun 19 May
  • £10-£40
  • Entries closed
Wareham, Dorset, UK

Jurassic Coast Ultra Challenge

Walk, jog or run along the fabulous UNESCO World Heritage coastline for charity, starting at the picturesque Corfe Castle, with a range of distances to suit all abilities and full support too.

  • Newcomers
  • Entertainment
  • Music
  • Chip timing
  • Enter online
  • GPS tracking
  • Fundraising required
  • Undulating
  • Hilly
  • Event village
  • Age 14 & over
  • 1 day trail running
Entries closed
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 25 - Sun 26 May
  • £10-£40
  • Entries closed
  • Sat 25 - Sun 26 May
  • £10-£40
  • Entries closed
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
Take on 50 historic miles across the beautiful Southern Upland Way - one of the greatest trails in the UK. Ultrarunners will tackle several ascents, pass through forests, valleys and by lochs.
  • Sat 8 Jun
  • £89
  • Sat 8 Jun
  • £89
Castle Douglas, Dumfries and Galloway, UK

Ultra Scotland 50

Take on 50 historic miles across the beautiful Southern Upland Way - one of the greatest trails in the UK. Ultrarunners will tackle several ascents, pass through forests, valleys and by lochs.

  • Enter online
  • GPS tracking
  • Hilly
  • Age 20 & over
  • 56 miles trail running + 2447 m ascent
Entries close soon
Take on England’s finest countryside for charity, at your own pace, with stunning views en-route. With distances from 10km right up to 100km there’s a Lake District Challenge for everyone!
  • Sat 8 - Sun 9 Jun
  • £10-£40
  • Entries close soon
  • Sat 8 - Sun 9 Jun
  • £10-£40
  • Entries close soon
Kendal, Cumbria, UK

Lake District Ultra Challenge

Take on England’s finest countryside for charity, at your own pace, with stunning views en-route. With distances from 10km right up to 100km there’s a Lake District Challenge for everyone!

  • Newcomers
  • Entertainment
  • Music
  • Chip timing
  • Enter online
  • GPS tracking
  • Fundraising required
  • Undulating
  • Hilly
  • Event village
  • Urban
  • Rural
  • Age 14 & over
  • 1 day trail running
Take on the full 100K Race to the King ultra marathon challenge in one go. Fully supported through day and night on a route combining castles and coastal scenery.
  • Sat 15 - Sun 16 Jun
  • £165
  • 1 charity
  • Sat 15 - Sun 16 Jun
  • £165
  • 1 charity
Chichester, West Sussex, West Sussex, UK

Race to the King | 100K Non-stop

Take on the full 100K Race to the King ultra marathon challenge in one go. Fully supported through day and night on a route combining castles and coastal scenery.

  • Chip timing
  • Enter online
  • GPS tracking
  • Undulating
  • Age 18 & over
  • 100 km trail running + 4619 ft ascent
Test yourself for charity in the rolling hills of the Cotswolds featuring the Cotswold Way, trails and fabulous views, with routes from 10km right up to 100km there’s something for everyone!
  • Sat 22 - Sun 23 Jun
  • £10-£40
  • 9 charities
  • Sat 22 - Sun 23 Jun
  • £10-£40
  • 9 charities
Cirencester, Gloucestershire, UK

Cotswold Way Ultra Challenge

Test yourself for charity in the rolling hills of the Cotswolds featuring the Cotswold Way, trails and fabulous views, with routes from 10km right up to 100km there’s something for everyone!

  • Newcomers
  • Entertainment
  • Music
  • Chip timing
  • Enter online
  • GPS tracking
  • Fundraising required
  • Undulating
  • Hilly
  • Event village
  • Urban
  • Rural
  • Age 14 & over
  • 1 day trail running
From the idyllic basecamp hub in Bakewell, charity challengers will head into the fabulous Peak District National Park on a route from 10 miles right up to the full 100km with full support!
  • Sat 6 - Sun 7 Jul
  • £10
  • 8 charities
  • Sat 6 - Sun 7 Jul
  • £10
  • 8 charities
Bakewell, Derbyshire, UK

Peak District Ultra Challenge

From the idyllic basecamp hub in Bakewell, charity challengers will head into the fabulous Peak District National Park on a route from 10 miles right up to the full 100km with full support!

  • Newcomers
  • Entertainment
  • Music
  • Chip timing
  • Enter online
  • GPS tracking
  • Fundraising required
  • Undulating
  • Hilly
  • Event village
  • Rural
  • Age 14 & over
  • 1 day trail running
Take on the full 100K Race to the Stones ultramarathon in one go. Fully supported through day and night on an incredibly scenic and historic route.
  • Sat 13 Jul
  • £175
  • 3 charities
  • Sat 13 Jul
  • £175
  • 3 charities
Watlington, Oxfordshire, UK

Race to the Stones | 100K Non-stop

Take on the full 100K Race to the Stones ultramarathon in one go. Fully supported through day and night on an incredibly scenic and historic route.

  • Chip timing
  • Enter online
  • GPS tracking
  • Undulating
  • Age 18 & over
  • 100 km trail running + 3704 ft ascent
Take on the full 100K Race to the Stones ultramarathon with an overnight stop at the all-inclusive Basecamp, meaning a good nights' sleep in between the 50K stints.
  • Sat 13 Jul
  • £255
  • 2 charities
  • Sat 13 Jul
  • £255
  • 2 charities
Watlington, Oxfordshire, UK

Race to the Stones | 100K Two Days with camping

Take on the full 100K Race to the Stones ultramarathon with an overnight stop at the all-inclusive Basecamp, meaning a good nights' sleep in between the 50K stints.

  • Chip timing
  • Enter online
  • GPS tracking
  • Undulating
  • Age 18 & over
  • 100 km trail running + 3704 ft ascent
Take on the full Race to the Stones 100K ultramarathon over two days, making your own arrangements for overnight accommodation at the halfway point.
  • Sat 13 Jul
  • £165
  • Sat 13 Jul
  • £165
Watlington, Oxfordshire, UK

Race to the Stones | 100K Two Days no camping

Take on the full Race to the Stones 100K ultramarathon over two days, making your own arrangements for overnight accommodation at the halfway point.

  • Chip timing
  • Enter online
  • GPS tracking
  • Undulating
  • Age 18 & over
  • 100 km trail running + 3704 ft ascent
Visiting the heartland of the Scottish Borders, runners and walkers will take to the Borders Abbey Way to complete the full waymarked loop as individuals, teams or a relay of four.
  • Sat 24 Aug
  • £92-£120
  • Sat 24 Aug
  • £92-£120
Melrose, Scottish Borders, UK

Run the Borders | Full 109K

Visiting the heartland of the Scottish Borders, runners and walkers will take to the Borders Abbey Way to complete the full waymarked loop as individuals, teams or a relay of four.

  • Chip timing
  • Enter online
  • Hilly
  • Age 18 & over
  • 109 km trail running
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 7 - Sun 8 Sep
  • £10-£40
  • 10 charities
  • Sat 7 - Sun 8 Sep
  • £10-£40
  • 10 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
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!
  • Fri 13 - Sun 15 Sep
  • £10-£40
  • 12 charities
  • Fri 13 - Sun 15 Sep
  • £10-£40
  • 12 charities
London, UK

Thames Path Ultra Challenge

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!

  • Entertainment
  • Music
  • Chip timing
  • Enter online
  • GPS tracking
  • Fundraising required
  • Undulating
  • Event village
  • Urban
  • Park
  • Rural
  • Age 14 & over
  • 1 day trail running
Love long distance trail running and the coast? Then you'll love this fantastic trail running event which kicks off the Somerset & Exmoor Coast Festival.
  • Sat 21 Sep
  • £65
  • Sat 21 Sep
  • £65
Minehead, Somerset, UK

Somerset Coast Challenge | 100K

Love long distance trail running and the coast? Then you'll love this fantastic trail running event which kicks off the Somerset & Exmoor Coast Festival.

  • Enter online
  • Age 16 & over
  • 100 km trail running
An exciting and spectacular event exploring the beautiful Brecon Beacons and finishing deep in the heart of the Black Mountains with incredible support guaranteed.
  • Sat 28 Sep
  • £90
  • Sat 28 Sep
  • £90
Crickhowell, Powys, UK

Beacons to the Blacks | 50 Mile Ultra

An exciting and spectacular event exploring the beautiful Brecon Beacons and finishing deep in the heart of the Black Mountains with incredible support guaranteed.

  • Chip timing
  • Enter online
  • GPS tracking
  • Mountainous
  • Age 18 & over
  • 50 miles trail running + 10442 ft ascent
  • Sat 18 May
Newton Abbot, Devon, UK

Devon 100K

  • 100 km trail running
  • Sun 26 May
Arundel, West Sussex, UK

UK Ultra South Downs 100K

  • 100 km trail running
  • Sat 1 Jun
King's Lynn, Norfolk, UK

Norfolk 100K and 50K | 100K

  • 100 km trail running
  • Sat 15 Jun
Chelmsford, Essex, UK

Essex Way Ultra | 100K

  • 100 km trail running
  • Sat 22 Jun
Weymouth, Dorset, UK

Jurassic Coast 100K Ultra

  • 100 km trail running
  • Sat 29 Jun
Lyme Regis, Dorset, UK

Ham & Lyme 100K

  • 100 km trail running + 6634 ft ascent
  • Fri 5 - Sat 6 Jul
Epping, Essex, UK

The Full Essex Way Ultra

  • 82 miles trail running + 2778 ft ascent
  • Sat 6 Jul
Petersfield, Hampshire, UK

The Serpent Trail Races | 50K

  • 50 km trail running
  • Sat 6 Jul
Petersfield, Hampshire, UK

The Serpent Trail Races | 100K

  • 120 km trail running
  • Sat 13 - Sun 14 Jul
Caernarfon, Gwynedd, UK

Black Diamond Yr Wyddfa Snowdon24

  • 24 hrs trail running
  • Sat 20 Jul
Melrose, Scottish Borders, UK

Saint Cuthbert's Way Ultra | Saint Cuthbert's Way 100K

  • 100 km trail running
  • Sat 3 Aug
Newmarket, Suffolk, UK

Stour Valley Path 100K Ultra Run | 100K

  • 100 km trail running + 912 m ascent
  • Sat 17 Aug
Aviemore, Highland, UK

The Speyside Way Ultras | 100K

  • 100 km trail running
  • Sat 17 - Sun 18 Aug
Market Harborough, Northamptonshire, UK

Foxton Hound Ultras | 100K

  • 100 km trail running
  • Fri 13 Sep
Hope Valley, Derbyshire, UK

Peak District Challenge | Gold Ultra 100K

  • 100 km fell running + 3200 m ascent

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