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 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
- £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
- Entries close soon
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 30 Aug
- £32.50-£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 eco medals for all, as part of the festival weekend!
- 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
- Charity walk 4
- Ultra run
- + 1 more race

- Sat 13 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

- Fri 19 - Sat 20 Sep
- £55-£99
Peak District Challenge
Trek or run through the Peak District on a distance of your choice from 25K to 100 miles with full safety support, food, drinks and a delicious stew supper! Navigate your way or join a guided group.
- Trail run 2
- 100K ultra run
- 100 mile ultra run
- 50K ultra run

- 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
Altra 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

- Sun 28 Sep
- £36-£38
The Wensum Way Trail | Ultra Marathon
Enjoy the stunning route, push your limits, and, of course, earn your race bling over ultra distance. Runners will love the fuel and encouragement with every lap!
- 6 hrs trail running

- Sat 11 Oct
- £8.50-£216
William Wallace Running Festival
"Follow in the Footsteps of Legends". Step onto Scotland’s most storied battlefields, where warriors once fought for freedom, and take on your own epic challenge. Are you ready to take the field?
- Ultra run
- 50K ultra run
- 10K run
- Fun run

- 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 + 1450 m ascent

- 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 25 Oct
- £70
Thames Trail Ultra
This 47-mile point-to-point along England’s longest river is one of the most popular events in the British ultra running calendar, boasting an interesting route and top runner reviews.
- 47 miles trail running + 289 m ascent

- 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
- £85-£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!
- 33 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 10 Jan 2026
- £80
Country to Capital Ultra
A fabulous 43-mile point-to-point race, well established as the season opener to the Ultra race calendar and always sells out. From the countryside along the Grand Union Canal into London.
- 43 miles trail running + 419 m ascent

- Sat 17 Jan 2026
- £33-£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

- Sun 22 Feb 2026
- £33-£38
Thetford Festival of Running | Ultra Marathon
New venue! Come and enjoy the paths, trails and woodland of Thetford Forest in a looped-route ultra with fantastic support each lap and a medal at the finish!
- 6 hrs trail running

- Sat 11 Apr 2026
- £76-£130
Rose of the Shires Ultra and The Rosebud Marathon | Rose of the Shires Ultra
MARM Race of the Year 2023! Rose of the Shires Ultra showcases Northamptonshire's beautiful countryside in a grand tour with impeccable organisation and top runner reviews to boot.
- 54 miles trail running

- Sun 12 Apr 2026
- £31-£38
Haughley Festival of Running | Ultra Marathon
Join Zig Zag Running at the beautiful Haughley Park for the Haughley Festival of Running and join like-minded runners tackling more than marathon distance on paths and trails.
- 6 hrs trail running

- Sat 25 Apr 2026
- £52.50-£90.50
North Wales 50K & 100K
This event gives participants the opportunity to take in a runnable, beautiful route which follows the North Walian coastline between Prestatyn and Bangor.
- 50K ultra run
- 100K ultra run

- Sun 26 Apr 2026
- £33-£38
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

- Sun 10 May 2026
- £60
Shires and Spires | Ultra
The circular 35 mile ultra is a registered UTMB index race with 20.2 miles of cross country trails and 14.3 miles on road through wonderful countryside. Fully tracked and interactive
- 35 miles multi terrain running + 2052 ft ascent

- Sat 23 - Sun 24 May 2026
- £33-£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
- + 2 more races

- Sat 6 - Sun 7 Jun 2026
- £80
Endure24 | Reading
The UK’s favourite 24-hour trail race! Epic, Brutal, Relentless. Race against the clock to tackle as many laps of the iconic course as you can. How far can you go in 24 hours?
- 24 hrs multi terrain running

- Sat 13 Jun 2026
- £230-£240
Rat Race | The Wall
Run or hike the UK's most iconic ultramarathon and conquer 70 miles in 26 hours over a fully waymarked journey through Hadrian's Wall country. Ideal first ultra.
- 70 miles trail running + 3460 ft ascent
- Sat 9 - Sun 10 Aug
- £85-£870
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 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.

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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!

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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.