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 a month/region or the map view to see all events.
This event is a huge favourite among the trail running community selling with lovely scenery, challenging hills and a little bit of mud it encompasses everything trail.
A trail ultra that is flat and fast and perfect for a PB and also brilliant for a first-timer or the runner who wants to do their own pace plus bespoke medal and finish line treats.
A trail ultra that is flat and fast and perfect for a PB and also brilliant for a first-timer or the runner who wants to do their own pace plus bespoke medal and finish line treats.
Six pretty 5-mile loops through a lovely country park (a former colliery) on good paths with challenging hills to earn your bespoke medal and finish line treats.
Take on a 6-lap course through the stunning South Yorkshire Park country park of Rabbit Ings and reach the finish to hang your finisher's medal around your neck with pride.
Fast, flat, PB-grabbing ultra on traffic-free trails and the canal towpath with a bespoke medal and treats at the finish line. First-time ultra runners welcome.
Fast, flat, PB-grabbing event on good trail and canal towpath with a bespoke medal and treats at the finish line.
Enjoy a trip up the Leeds and Liverpool Canal this spring over a range of distances, all along the flat and even towpath. This event is perfect for runners of all abilities.
This trail running extravaganza funnels participants through a beautiful multi-lap route. Make sure to collect your awesome finishers medal too.
Fast, flat, PB-grabbing ultra on traffic-free trails and the canal towpath with a bespoke medal and treats at the finish line. First-time ultra runners welcome.
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.
An 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!
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.
Can you survive Farmmageddon? Run an ultra over a fantastic 5.3K loop through the lovely grounds of Hyde Hall Farm as part of the Farmmageddon endurance weekend.
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?
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.
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!
Starting in Lewknor, this event presents a varied and scenic route steeped in history. Crossing England’s longest river at the halfway mark, the course finishes at the iconic Lattin Down basecamp.
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.
Sticking to higher ground, you'll pass through a surprisingly isolated stretch of southern England and enjoy dramatic views before finishing with the full 100K at the awesome Avebury Standing Stones.
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.
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!
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!
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.
Select your location for 50K ultra marathons in your area.