The shortest of the common ultra distances at just over 30 miles, 50K ultra marathons are the best introduction to ultra running. But the 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 your location to find 50K ultra runs in your area or scroll down to browse events coming up.
Featured events are listed below - select your region to see all events.
Featured events are listed below - select your region to see all events.
Bank Holiday ultra run to the south coast with top reviews, amazing scenery, wonderful trails and rolling downs before reaching the promenade finish line for your ice cream and medal!
Multiple loops around the trails of Temple Newsam, Leeds, West Yorkshire with a bespoke medal and lots of goodies and treats for all finishers.
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.
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
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!
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.
Race around 6 loops in Bronte Country on the spectacular Moors surrounding Haworth, West Yorkshire with a bespoke medal, goodies and treats for all finishers.
Taking in the two Munro summits of Cairn a Chlamain and Ben Dearg along with Glen Tilt and the vast forests of Blairuachdair, the Full Tilt Ultra has it all. Are you up to the 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!
A coastal trail ultra through the ancient village of Bosham towards Chichester Harbour with panoramic views of this AONB, to finish at the fantastic basecamp with food and bars.
Head through the historic town of Arundel and witness the impressive Arundel Castle as you meander along the River Arun, across the South Downs in breathtaking surroundings.
Take on this fast and flat summer extravaganza along with the Leeds to Liverpool canal. These out-and-back routes are perfect for all participants looking to run further in a friendly atmosphere.
Starting at Aber Falls Distillery on the North Wales coast, this fully waymarked route takes in 14 of the Welsh 3000ft peaks, in an epic North-South traverse of 52km & 3,900m+
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!
Move around the spectacular and hilly Cannock Chase Forest and earn a 50km ultra, with a generous cut off time this is a chance to smash a big goal on a tough course.
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!
Take on the first half of the UK's favourite ultramarathon and wander through woodland before coming down into the renowned ‘field of dreams’, to finish at the fantastic basecamp with food and bars.
Starting from Basecamp, race 50K to complete the second day of Race to the Stones through the North Wessex Downs to the finish line at the incredible Avebury Stone Circle.
The original Snowdonia Ultra Marathon. A beautiful route boasting stunning views, a hearty ascent of Yr Wyddfa (Snowdon) and a thrilling 7km descent to a heroes' welcome at the finish line!
Explore the beautiful grounds of Duncombe Park, Helmsley and the Trans-Pennine Trail on this 6.7 mile looped course. Come for the scenic course, finisher's medal and well stocked aid stations!
A fabulous charity challenge setting out from Guildford base camp on a looped route taking in some of the best of the Surrey hills, the North Downs Way, and the surrounding countryside.
Enjoy a trip up the Leeds and Liverpool Canal this summer, all along the flat and even towpath. This event is perfect for runners of all abilities.
Challenge yourself for charity on the famous coastal path and Exmoor from the base camp in the shadows of Dunster Castle with distances from 10K right up to 50km there's something for everyone!
Spectacular trail running event featuring the Brecon and Monmouthshire Canal, the Llangattock Escarpment, Black Mountains, Sugar Loaf and Brecon Beacons with full support, top reviews and epic medals!
Starting alongside those taking on the full route, runners and walkers alike will feel the buzz of the startline before running past all four of the route's ruined abbeys to finish at Jedburgh.
Enjoy a flat trail run from the coast at Hornsea in East Yorkshire on an out-and-back route along the scenic Trans Pennine Trail with lots of treats for all finishers.
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!
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!
Take part in the Marsden Madness run for a change of scenery. Challenge yourself to a hilly trail run in the heart of West Yorkshire. Embrace the challenging scenic routes and really earn your medal.
An exciting and spectacular event starting near Table Mountain and exploring the nearby Black Mountains, with incredible support guaranteed.
An end-of-season looped charity challenge in some of the Chilterns' finest countryside, with historic trails, rolling hills, nature reserves and fantastic views with routes from 10km up to 50km.
Enjoy a trip up the Leeds and Liverpool Canal this autumn, all along the flat and even towpath. This event is perfect for runners of all abilities.
An end-of-season charity challenge in the Garden of England with a looped route around the Kent Downs starting on the North Downs Way with picturesque scenery and full support all the way.
A Halloween-themed running event you won't want to miss, bringing together runners of all abilities to share memories in what they love to do. Reach the finish to enjoy tasty Halloween treats.
A trail running extravaganza over a beautiful lapped 6.5-mile course from Knaresborough centre through parkland then into beautiful countryside with an awesome medal at the finish line.
Multi terrain trail running through the glorious trails surrounding Kirkstall Abbey in Leeds including the beautiful River Aire and Bramley Fall Park for runners of all stripes with a bespoke medal.
Select your location for 50K ultra marathons in your area.