21

100K ultra runs in Summer

Find 100k ultra runs near me in Summer - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

Filter by place

Filter by date

Filter by category

Map

Event listings

Select an event for photos, video, route, location, reviews, entry fees and how to enter.

Take on England’s finest countryside at your own pace with stunning views all the way, featuring the Garburn Pass, historic Ambleside, a halfway point by Lake Windermere, forests and nature reserves.
  • Sat 6 - Sun 7 Jun
  • £39-£199
Kendal, Cumbria, UK

Lake District Ultra Challenge

Take on England’s finest countryside at your own pace with stunning views all the way, featuring the Garburn Pass, historic Ambleside, a halfway point by Lake Windermere, forests and nature reserves.

  • Trail run 2
  • 50K ultra run 2
  • 100K ultra run 2
  • Marathon
Challenge yourself in the rolling hills of the Cotswolds featuring the Cotswold Way itself, villages, footpaths and trails with fabulous views on route plus full support and hospitality.
  • Sat 13 - Sun 14 Jun
  • £39-£199
Cirencester, Gloucestershire, UK

Cotswold Way Ultra Challenge

Challenge yourself in the rolling hills of the Cotswolds featuring the Cotswold Way itself, villages, footpaths and trails with fabulous views on route plus full support and hospitality.

  • Trail run 2
  • Ultra run 4
  • 100K ultra run
  • 10K run
Set to be one of the greatest Ultra Challenges, venture from Scarborough’s historic seafront to wild moorland trails, and discover the dramatic Yorkshire coastline with a powerful celebration finish.
  • Sat 20 - Sun 21 Jun
  • £49-£199
Scarborough, North Yorkshire, UK

North Yorks Ultra Challenge

Set to be one of the greatest Ultra Challenges, venture from Scarborough’s historic seafront to wild moorland trails, and discover the dramatic Yorkshire coastline with a powerful celebration finish.

  • 100K ultra run 2
  • 50K ultra run 2
  • Trail run
  • 10 miler
The full circuit takes in both the Coastal and Castle loops for a magnificent tour of the stunning South Downs. Steeped in history and uniquely varied, the 100K offers a course truly fit for royalty.
  • Sat 20 Jun
  • £175-£185
Chichester, West Sussex, UK

Race to the King | 100K Non-Stop

The full circuit takes in both the Coastal and Castle loops for a magnificent tour of the stunning South Downs. Steeped in history and uniquely varied, the 100K offers a course truly fit for royalty.

  • 100 km trail running + 1510 m ascent
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 4 - Sun 5 Jul
  • £49-£199
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!

  • Ultra run 3
  • 100K ultra run 2
  • Trail run 2
Travel across the Ridgeway, the UK’s oldest footpath, pass through ancient landscapes, and end at the iconic Avebury Standing Stones. This is a journey on foot through 5,000 years of history.
  • Sat 11 - Sun 12 Jul
  • £90-£275
Watlington, Oxfordshire, UK

Race to the Stones

Travel across the Ridgeway, the UK’s oldest footpath, pass through ancient landscapes, and end at the iconic Avebury Standing Stones. This is a journey on foot through 5,000 years of history.

  • 50K ultra run 2
  • 100K ultra run 3
Yr Wyddfa (Snowdon) is the highest mountain in England and Wales. Your challenge is to ascend and descend as many times as possible in 24 hours - solo or as a relay team.
  • Sat 11 - Sun 12 Jul
  • £129.99-£319.99
Caernarfon, Gwynedd, UK

Black Diamond Yr Wyddfa Snowdon24

Yr Wyddfa (Snowdon) is the highest mountain in England and Wales. Your challenge is to ascend and descend as many times as possible in 24 hours - solo or as a relay team.

  • 24 hrs trail running + 3182 ft ascent
Set on the stunning Gower Peninsula, the UK’s first Area of Outstanding Natural Beauty and famous for its golden beaches, limestone cliffs, wild moors, ridges and woodlands.
  • Sat 18 - Sun 19 Jul
  • £49-£199
Swansea, West Glamorgan, UK

Gower Peninsula Ultra Challenge

Set on the stunning Gower Peninsula, the UK’s first Area of Outstanding Natural Beauty and famous for its golden beaches, limestone cliffs, wild moors, ridges and woodlands.

  • 100K ultra run 2
  • Ultra run
  • 50K ultra run 2
  • Marathon
  • Multi-terrain run
  • + 1 more race
  • Sat 20 Jun
  • £20-£100
Hebden Bridge, West Yorkshire, UK

Two Rose Ultra | Two Roses Ultra - 100K

  • 100 km multi terrain running + 5175 ft ascent
  • Sat 20 Jun
  • £118
Weymouth, Dorset, UK

Jurassic Coast 100K Ultra

  • 100 km trail running + 2900 m ascent
  • Fri 3 - Sat 4 Jul
  • £103-£105
Epping, Essex, UK

The Full Essex Way Ultra

  • 82 miles trail running + 3469 ft ascent
  • Sat 8 Aug
  • £108-£110
Newmarket, Suffolk, UK

Stour Valley Path Ultra Run | 100K

  • 100 km trail running + 912 m ascent
  • Sat 15 Aug
  • £80
Aviemore, Highland, UK

The Speyside Way 50K & 100K | 100K

  • 100 km trail running
  • Sat 15 - Sun 16 Aug
  • £73-£75
Northampton, Northamptonshire, UK

Foxton Hound Ultra 100K

  • 100 km trail running

Search options

Back to search options
4 steps to wellbeing
Sleep well

A good night's sleep is an essential foundation for a healthy lifestyle, effective training and weight control.

Train slow

Low-intensity training is easier for you, reduces the risk of injury and helps builds an efficient aerobic system.

Eat natural

Cut out sugar & junk food, reduce carbs, eat natural foods and train your body to burn fat for fuel.

Get outdoors

Fresh air, natural light and reconnecting with nature all help to improve mental and physical wellbeing.