50K ultra runs in UK
Find 50k ultra runs in UK in 2026/2027 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.
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MapEvent listings
Select an event for photos, video, route, location, reviews, entry fees and how to enter.
- Sat 11 - Sun 12 Jul
- £90-£275
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
- Sat 11 - Sun 12 Jul
- £31.99-£319.99
Snowdonia Trail Marathon Eryri Events
Your chance to take on one of the UK’s most demanding and spectacular trail races, set deep in the heart of Eryri (Snowdonia) National Park, offering a true mountain challenge.
- 10K run
- Half marathon
- Marathon
- Ultra run 2
- Sat 11 Jul
- £23-£35
Ooops I Ran It Again | 50K
Who hasn't completed a race, sworn they will never run again and then booked onto another one the following day?!
- 50 km road running
- Sat 18 - Sun 19 Jul
- £49-£199
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
- Sun 19 Jul
- £17-£29
Ooops I Ran It Again | North | 50K
Who hasn't completed a race, sworn they will never run again and then booked onto another one the following day?!
- 50 km trail running
- Fri 24 Jul
- £15-£27
Midweek Medal Madness Run July | 50K
The aim of the midweek runs is to hold events as cheaply as possible in order for people to be able to build their numbers or simply to help people achieve their own goals at an affordable price.
- 50 km trail running
- Sat 25 Jul
- £139
South West Coast 50 Ultra Challenge | Full 50km
The 50km ultra option from Dunster Castle, along the South West Coastal Path to a picnic in Exmoor National Park with awesome views over the Bristol Channel to finish back at Minehead with a medal!
- 50 km trail running + 1600 m ascent
- Sat 25 Jul
- £22-£34
Ooops I Ran It Again | Wales | 50K
Who hasn't completed a race, sworn they will never run again and then booked onto another one the following day?!
- 50 km road running
- Sun 26 Jul
- FREE-£115
Ultra X Wales | 50K
Nestled in the hills of the Brecon Beacons, run or walk through wild hills on marked, rugged trails, with big views and remote landscapes in a supportive, adventure-focused trail running experience.
- 50 km multi terrain running + 2166 m ascent
- Sat 1 Aug
- £20-£65
She Strides Ultra 50K
West Yorkshire’s very first female-only ultra-marathon! Travelling through woodlands and open moorland, this scenic route passes through Hebden Bridge and Haworth as well as other areas of beauty.
- 50 km trail running + 5000 ft ascent
- Sat 1 Aug
- £139
North Downs 50 Ultra Challenge | 50km
Join a summer North Downs 50 Challenge! This looped route is set in an area of outstanding natural beauty of the Surrey Hills, taking in chalk ridges and ancient woodlands.
- 50 km trail running + 830 m ascent
- Sun 9 Aug
- £50-£55
Durty Trail Weekender | 50K Hills & Horizons
A challenging 50K across mixed terrain, with sustained climbs, long miles, and expansive views across the Borders, built for experienced runners chasing a true ultra test.
- 50 km trail running + 1585 m ascent
- Sun 9 Aug
- £23-£35
Great British Bake Run | 50K
Who doesn't like cake?! The Great British Bake 50K Run is back for another year! The medal is a fantastic cupcake which doubles up as a magnet to go on your fridge!
- 50 km road running
- Fri 14 Aug
- £15-£27
Midweek Chasing Numbers Aug | 50K
The aim of the midweek runs is to hold events as cheaply as possible in order for people to be able to build their numbers or simply to help people achieve their own goals at an affordable price.
- 50 km trail running
- Sat 15 Aug
- £23-£35
I'm Not Throwing Away My Shot Run | 50K
If you're a fan of the musical Hamilton, then this is the run for you! This is an amazing Hamilton-inspired event with an incredible themed medal too.
- 50 km trail running
- Fri 21 Aug
- £15-£27
Midweek Medal Madness Run August | 50K
The aim of the midweek runs is to hold events as cheaply as possible in order for people to be able to build their numbers or simply to help people achieve their own goals at an affordable price.
- 50 km trail running
- Sat 22 Aug
- £22-£34
Great British Bake Run | Wales | 50K
Who doesn't like cake?! The Great British Bake Run is back for another year with a totally unique baking competition with prizes on the day too!
- 50 km road running
- Sun 30 Aug
- £17-£29
GNR & Time Turner | Durham | 50K
Whether you're looking to get some miles under your belt before The Great North Run or you just fancy a run along the beautiful River Wear, then this is the ultra for you!
- 50 km trail running
- Sat 5 Sep
- £65-£67
Heights Ultra Trail | The Ramsden 50K
A demanding 50km ultra through Yorkshire’s wildest trails, built to test endurance and resilience while rewarding runners with epic scenery, big climbs and a powerful sense of achievement.
- 50 km trail running + 3901 ft ascent
- Fri 11 - Sun 13 Sep
- £39-£199
Thames Path Ultra Challenge
England’s greatest river provides a fantastic backdrop for an unforgettable 'festival' challenge weekend, with distances from 10km right up to 100km there’s a Thames Challenge for everyone!
- 100K ultra run 2
- 50K ultra run 2
- Trail run 4
- Ultra run
- 10K run
- + 4 more races
- Sat 12 Sep
- £60-£62
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.
- 50 km trail running + 1500 ft ascent
- Sun 13 Sep
- FREE-£110
Ultra X England | 50K
From rolling hills to woodland paths, this is an opportunity to test endurance, build trail confidence and enjoy a professionally supported experience designed for runners and walkers alike.
- 50 km multi terrain running + 1961 m ascent
- Sat 19 Sep
- From £66
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.
- 50 km trail running + 1140 m ascent
- Sat 26 Sep
- £139
Chiltern 50 Ultra Challenge | Full 50km Challenge
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!
- 50 km trail running + 920 m ascent
- Sat 10 Oct
- £139
Kent Downs 50 Ultra Challenge | 50km
Set in an Area of Outstanding Natural Beauty offering dramatic views, vibrant communities, a rich historic heritage, and diverse wildlife and habitats – featuring the North Downs Way National Trail.
- 50 km trail running + 1000 m ascent