Ultra runs in the UK
Ultra marathons are any run longer than a marathon (26.2 miles or 42.2 km) - the most common distances are 50K, 100K and 100 miles. Despite this, distance is not always the key challenge with ultra runs - the total ascent gives a much better indication of how hard it will be. Select a specific distance, your location for ultra runs in your area or scroll down to browse events.
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Ultra marathons and ultra runs in 2025
Featured events are listed below - select a month/region or the map view to see all events.
- Sat 26 Apr
- £48.50
North Wales 50K
This event gives participants the opportunity to take in a runnable, beautiful route which follows the North Walian coastline between Prestatyn and Bangor.
- 50 km trail running
- Sun 27 Apr
- £35.50-£37.50
- Entries close today
The Other Run | Ultra Marathon
On the same day as the famous marathon in London, why not come along to The "Other" Run? Complete an ultra and earn a Zig Zag medal too. Cover your Virtual London Marathon miles here!
- 7 hrs road running
- Fri 2 May
- £90-£102
- Entries close tomorrow
The Portland Pig BackYard Ultra
4.167 miles on the hour, every hour, until the there is only one left standing. Have you got what it takes for just one more loop?
- 1 day multi terrain running
- Sat 3 - Sun 4 May
- £39-£199
Isle of Wight Ultra Challenge
Great challenges need great settings, and up to 2,000 adventurers will take on the Isle of Wight stunning coastal path – all out to push themselves further this year!
- Trail run 3
- 50K ultra run 3
- 100K ultra run 2
- Ultra run
- Sat 3 May
- £57-£77
ATW Mallory Race Circuit 50K/100K - Incorporating The British and BMAF 50K/100K Championships
Get ready for the challenge of a lifetime at the Mallory Park 50K or 100K race! A unique and thrilling chance to race on the same legendary motor racing circuit that once hosted a Formula 1 event!
- 50K ultra run
- 100K ultra run
- Sat 10 May
- £58-£60
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.
- 50 km trail running
- Sat 10 - Sun 11 May
- £92.50-£145
24 Hours South - The Offa's Dyke Ultra
The finish line is unique to you: 24 hours after the mass start, the race shall stop and the Solo Runners and Teams furthest South on the National Trail, shall be declared winners.
- 24 hrs trail running
- Sat 17 - Sun 18 May
- £39-£199
Jurassic Coast Ultra Challenge
Walk, jog or run along the spectacular UNESCO World Heritage coastline from Corfe Castle past Lulworth Cove and Durdle Door, with full support, welcoming base camp and finish line celebration!
- Trail run 2
- 50K ultra run 2
- 100K ultra run 2
- Marathon
- Ultra run
- + 1 more race
- Sun 18 May
- £75-£80
Keswick Mountain Festival | adidas TERREX 50K Trail Ultra Marathon
The ultra is graded ‘very hard’ and one to get into your ultra running calendar if you’re looking for UTMB index runs where you can bag points. Includes Full Weekend Festival Ticket in the price!
- 50 km trail running + 1995 m ascent
- Sat 24 - Sun 25 May
- £89-£199
London 2 Brighton Ultra Challenge
Walk, jog or run the capital-to-coast route with 2,000 other adventurers over a range of distance options available and superb support all the way, for all abilities and experience levels.
- Trail run 3
- Ultra run 2
- Marathon
- 100K ultra run 2
- Sat 24 - Sun 25 May
- £34-£165
Farmmageddon
Can you survive Farmmageddon? You have 32 hours to complete 100 miles over a fantastic 5.3K loop through the lovely grounds of Hyde Hall Farm. 24-hour or shorter distance options too.
- 5K run
- 10K run
- Half marathon
- Marathon
- Ultra run 2
- + 1 more race
- Sun 1 Jun
- £23-£37.50
Circuit Du Sore Legs | Part Cinq
In its fifth year! Come take on the challenge of the track at Wodson Park. Do you have it in you to complete your distance on a 400-metre athletics track?
- 5K run
- 10K run
- Half marathon
- Marathon
- 50K ultra run
- + 1 more race
- Sat 7 - Sun 8 Jun
- £39-£199
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
- Sat 7 Jun
- £50
The Llangollen 50K
A truly beautiful area of North Wales! The route uses two way-marked 15-mile linear routes either side of the river, to create a spectacular, challenging excursion in and above the valley.
- 50 km trail running
- Sat 7 - Sun 8 Jun
- £90-£110
Conquer24 | The Ultimate 24 Hour Trail Festival
An incredible running adventure! Whether you're a total newbie or a seasoned pro, challenge yourself as a solo runner, in pairs or part of a team of up to 12 runners and see how far you can go?
- 24 hrs trail running
- Sun 8 Jun
- £35.50-£37.50
The Valley of the Owls Run | Ultra Marathon
This route takes in the Valley of the Owls in Suffolk, with some of the oldest roads in England and very beautiful countryside.
- 7 hrs road running
- Sat 21 - Sun 22 Jun
- £39-£199
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
- Sat 21 Jun
- £80-£180
Race to the King
Conquer a challenge fit for royalty through the heart of Sussex in this epic ultramarathon along the South Downs Way and Monarch’s Way. Choose from two unique 50km loops – or tackle both in a 100km!
- 100K ultra run
- 50K ultra run 2
- Sat 21 Jun
- £30
Exmoor Perambulation | Ultra Trail Marathon
65th edition! The Perambulation is Exmoor National Park’s iconic traditional self-navigated circular long-distance event dating back over 725 years and now you can run the full distance!
- 30 miles trail running
- Sat 28 - Sun 29 Jun
- £39-£199
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
- Sat 12 - Sun 13 Jul
- £85-£270
Race to the Stones
Conquer Britain's oldest trail, the ancient Ridgeway, at the UK's biggest ultramarathon as you race towards the 5000-year-old Avebury Standing Stones. Back for the 12th Year Running!
- 50K ultra run 2
- 100K ultra run 3
- Sat 12 - Sun 13 Jul
- £31.99-£251.99
XTERRA Snowdonia Trail Marathon Eryri Events
Welcome to the XTERRA Snowdonia Trail Marathon Eryri, a stunning Trail Marathon, Ultra Marathon, Half Marathon, 10K, and 24hr event starting and finishing in Wales' outdoor capital, Llanberis.
- 10K run
- Half marathon
- Marathon
- Ultra run 2
- Sat 12 Jul
- £139
North Downs 50 Ultra Challenge | 50km
Join a mid-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
- Sat 19 - Sun 20 Jul
- £39-£199
Gower Peninsula Ultra Challenge
A new Ultra Challenge for this year, set on the stunning Gower Peninsula – the UK’s first Area of Outstanding Natural Beauty and famous for its golden beaches.
- 100K ultra run 2
- Ultra run
- 50K ultra run 2
- Marathon
- Multi-terrain run
- + 1 more race
- Thu 24 Jul - Sat 2 Aug
- £330-£350
The Great Barrow Challenge | 10 in 10
10 running events in 10 days in the beautiful Suffolk countryside! Run 5K, 10K, Half Marathon, Marathon or an Ultra every day for 10 days in this unique endurance challenge!
- 10 days trail running
- Sat 2 Aug
- £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 9 - Sun 10 Aug
- £80-£85
Run Sandringham 24
A major event in the East Anglian running calendar, attracting a large field of runners of all abilities to the winter residence of The Royal Family, to run a 24-hour race around the estate.
- 24 hrs trail running
- Sat 30 Aug
- £35.50-£37.50
The Lucky Clover | Ultra
Your race, your pace, your distance! Ultra runners will explore The Clover Route which is on road and receive a special bespoke medal too.
- 6 hrs road running
- Sun 31 Aug
- £55
Something Wild Festival | Summit Wild Ultra
A stunning ultra trail race taking in the South West Coast Path on a fully-marked route with chip timing and medals for all plus an uplifting festival vibe!
- 50 km trail running
- Sat 6 - Sun 7 Sep
- £89-£199
South Coast Ultra Challenge
The South Downs National Park is a superb backdrop for a real challenge featuring Beachy Head, the Seven Sisters and the South Downs Way with a choice of distances from 25km right up to 100km!
- 100K ultra run 2
- Ultra run 2
- Trail run
- Fri 12 - Sun 14 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 13 Sep
- £58-£60
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
- Sat 20 Sep
- £32.50-£37.50
The Lucky Horseshoe | Ultra Marathon
Your race, your pace, your distance! Utilising the Gallops route at the amazing Suffolk Running Centre which takes you through to Newmarket so you may get to see the race horses in training!
- 7 hrs trail running
- Fri 26 - Sun 28 Sep
- £65-£210
13 Valleys
Celebrating the unique valleys of the Lake District which are part of the UNESCO World Heritage Site status, by linking them together with spectacular trail and ultra routes for you to enjoy!
- Trail run
- Ultra run 3
- Sat 27 Sep
- £139
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!
- 50 km trail running + 920 m ascent
- Sat 11 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
- Sat 11 Oct
- £130-£160
Lakes in a Day
On foot from the very top of the Lake District to the very bottom via the stunning Helvellyn Ridge and the western shoreline of Lake Windermere. Not easy but certainly spectacular!
- 50 miles trail running
- Sun 19 Oct
- £49.50
Brenig Way 50K Trail
This regional marked footpath of 32 miles winds it's way through some beautifully remote upland scenery. Start at the town of Corwen in the Dee Valley, and follow the signage up the Dee Valley.
- 50 km trail running
- Sat 25 Oct
- £26-£37.50
Running Tribe Races | Oct | 40 Mile Ultramarathon
A new and unique concept where you turn up ready to conquer an Ultra but if you feel like going easy, run a cool 1-3 loops instead! Ideal for testing out fuelling techniques & kit.
- 40 miles multi terrain running
- Sat 1 Nov
- £23-£37.50
Catherine Wheel Canter
Welcome to the Fireworks Festival of Running! Come and tackle the track to see how far you can go in 6 hours, whether you reach 5K or an ultra, over the 400m circuit.
- 5K run
- 10K run
- Half marathon
- Marathon
- 50K ultra run
- + 1 more race
- Sat 1 Nov
- £23-£37.50
Guy Fawkes Gallop
Welcome to the Fireworks Festival of Running! Come and tackle the track to see how far you can go in 6 hours, whether you reach 5K or an ultra, over the 400m circuit.
- 5K run
- 10K run
- Half marathon
- Marathon
- 50K ultra run
- + 1 more race
- Sat 1 Nov
- £55.50-£57.50
Rocket Around the Running Track
Welcome to the Fireworks Festival of Running! Come and tackle the 400 metre athletics track for 12 hours and see how far you can go!
- 12 hrs track and field
- Sat 1 Nov
- £55.50-£57.50
Fireworks 50
Welcome to the Fireworks Festival of Running! Come and tackle the 400 metre athletics track for the festival's ultimate goal of 50 miles in 12 hours! Have you got what it takes?
- 50 miles track and field
- Sat 8 Nov
- £70-£175
Race to Remember | 76km
Test yourself on an ultramarathon - one of the most poignant challenges of the year - to honour the servicemen and women who have sacrificed so much for our nation.
- 76 km multi terrain running + 2100 ft ascent
- Sun 30 Nov
- £26-£37.50
Running Tribe Races | Nov | 40 Mile Ultramarathon
A new and unique concept where you turn up ready to conquer an Ultra but if you feel like going easy, run a cool 1-3 loops instead! Ideal for testing out fuelling techniques & kit.
- 40 miles multi terrain running
- Sun 7 Dec
- £51.50
Sea 2 Summit | Offa's Dyke Ultra Marathon
The only way is up with this race along the Offas Dyke footpath. The scenery and terrain become more and more beautiful, and challenging as you go!
- 32 miles trail running
- Sun 14 Dec
- £26-£37.50
Running Tribe Races | Dec | 40 Mile Ultramarathon
A new and unique concept where you turn up ready to conquer an Ultra but if you feel like going easy, run a cool 1-3 loops instead! Ideal for testing out fuelling techniques & kit.
- 40 miles multi terrain running
- Sat 20 Dec
- £32.50-£37.50
Christmas Canter | Ultra Marathon
It's December, so what better way to finish the year than with a Christmas event? Follow the Windmill Way route for more than marathon distance.
- 7 hrs road running
- Sat 17 Jan 2026
- £36-£38
Windmill Way Wander | Ultra Marathon
It's New Year! So what better way to start the year than with an ultra? Come to the Suffolk Running Centre and follow the Windmill Way route for over a marathon distance up to the 7-hour cut off.
- 7 hrs road running
- Sat 7 Jun
- £109-£199
Ultra Scotland 100/50
Take on 100 or 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.
- 100 mile ultra run
- Ultra run
- Sat 23 - Sun 24 Aug
- £38-£108
Run the Borders
Visiting the heartland of the Scottish Borders, runners and walkers will take to the Borders Abbey Way to complete the waymarked route as individuals, teams or a relay of four.
- 50K ultra run
- Ultra run
- Sat 29 Nov
- £95
Sidlaw Ultra
The second Sidlaw Ultra covering 69km from Glamis Castle to Scone Palace along stunning trails with beautiful hilltop views with chilli, hot pudding and medal for all finishers!
- 69 km trail running
Ultra marathon guides
Guides, tips and advice on running an ultra marathon.
- 10 mins read
Race 101: the 13 Valleys Ultra
Introducing the 13 Valleys Ultra plus the event's shorter distance options, helping you to push your limits and get involved!
- 10 mins read
The best runs that you've never heard of
To celebrate Global Running Day, we're rounding the best unsung marathons, half marathons and more in the UK!
- 8 mins read
10 best ultra marathons in the UK
Take on an epic endurance challenge with one of the most popular ultra runs in the UK, from traditional fell runs to the UTMB World Series!
- 5 mins read
5 things you need to know before your first ultra
Ultra marathons are some of the greatest tests of endurance on the planet and yield unforgettable experiences - if you're well prepared.
Ultra runs near you
Select your location for ultra marathons in your area.