Ultramarathons in the United Kingdom

Ultramarathons, or ultras, are any running races beyond the standard marathon distance of 26.2 miles (or 42.2k). The most common ultra distances are 50k, 100k, 50 miles, or 100 miles, but each event is unique in terms of distance and terrain. The International Association of Athletics Federation recognises world records at ultramarathon events that have a distance of 100km. There are even 24hr ultramarathons, where the distance is unlimited, or multiday ultras, where the distance can extend beyond 1000km. There are a couple of city-based ultramarathons, but most ultras make the most of the UK's stunning scenery and countryside. A lot of these events go off-road and require trail-running over difficult terrain with steep climbs or along rugged coastlines. The Race to the Stones is one of the UK's best and most popular ultra marathons, taking in 100km of the historic Ridgeway. Or there is the famous Dragon's Back Race, which takes place over 5 days, taking runners from North to South Wales and requiring ascents adding up to twice the elevation of Mount Everest.
Showing 1 - 48 of 133 events
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  • JUN13

    Mizuno Endure24 – Reading

    Reading, South East, United Kingdom

    Mizuno Endure24 is a unique event in the running calendar, it mixes serious ultra-running with a 24 hour team relay race. Virtually anyone of any ability...

    £72 - £576
    • Running
    • Ultramarathon
  • JUL4

    Mizuno Endure24 – Leeds

    Wetherby, Yorkshire and the Humber, United Kingdom

    Mizuno Endure24 is a unique event in the running calendar, it mixes serious ultra-running with a 24 hour team relay race. Virtually anyone of any ability...

    £72 - £576
    • Running
    • Ultramarathon
  • JUN13

    Endure24 – Wasing Park

    Reading, South East, United Kingdom

    The Award Winning Mizuno Endure24, its like Glastonbury for runners, its a 24 hour running party in the woods. Free camping for runners, friends, family and...

    £95 - £576
    • Running
    • Ultramarathon
  • SEP28

    Causeway Coast Marathon

    Portballintrae, Northern Ireland, United Kingdom

    Having established itself as one of the most scenic marathons in the world, this year's Causeway Coast Marathon is set to attract participants from...

    £27.50 - £62
    • Running
    • Ultramarathon
    • Marathon
    • Half Marathon
    • 10k
  • NOV16

    Tollymore Trail Marathon Events

    Newcastle, Northern Ireland, United Kingdom

    The Tollymore Trail Marathon is the perfect end of year trail ultra marathon, marathon and half marathon event, along with a 10K race.

    Join us for...

    £27.50 - £62
    • Running
    • Ultramarathon
    • Marathon
    • Half Marathon
    • 10k
  • JUL4

    Dixons Carphone Race to the Stones

    Lewknor, South East, United Kingdom

    Run, jog or walk your way across the ultimate 100km adventure!

    Our award-winning endurance event is back and ready for action. With its incredible...

    £64 - £194
    • Running
    • Ultramarathon
  • OCT5

    Ultra London

    London, London, United Kingdom

    Ultra London is Londons ultra marathon. This urban ultra-marathon is on a stunning route along the Capital Ring footpath, through nine of South Londons...

    £59 - £89
    • Running
    • Ultramarathon
  • JUL18

    Race to the Tower

    Whiteshill, South West, United Kingdom

    If you are looking to test your hill running, jogging or walking ability, you have come to the right place! The 52.4 mile route is guaranteed to challenge...

    £59 - £189
    • Running
    • Ultramarathon
    • Marathon
  • JUN20

    Race to the King

    Arundel, South East, United Kingdom

    Are you ready to conquer the King?

    This award-winning historical trail is back and ready to challenge runners, joggers and walkers alike.

    From...

    £59 - £189
    • Running
    • Ultramarathon
    • Marathon
  • APR25

    The Fox

    Godalming, South East, United Kingdom

    We teamed up with ULTRA magazine again to bring you The Fox Ultra. A 60K circular ultra run route around Guildford.

    The route will be fully marked and...

    £25 - £80
    • Running
    • Ultramarathon
    • Marathon
    • Half Marathon
  • OCT20

    Ultra Tour of Edinburgh

    Edinburgh, Scotland, United Kingdom

    Dawn breaks and in the crisp autumn air of Scotlands Capital a quite remarkable event gets underway. Enveloped within the beating heart of this most famous...

    £110.23
    • Running
    • Ultramarathon
  • NOV2

    White Rose Ultra

    Marsden, Yorkshire and the Humber, United Kingdom

    Run, Walk or Crawl your way through fantastic countryside, a well marked course with fully stocked aid stations every 10 miles, unmanned water stations...

    £55 - £100
    • Running
    • Ultramarathon
  • JAN4

    Blade Runner Ultra Marathon Series – Winter

    Brecon, Wales, United Kingdom

    The Blake Runner Ultra Marathon is a 50km race like no other. See what SAS Selection really takes as you run, climb, slide and scramble your way around the...

    £65
    • Running
    • Ultramarathon
  • APR4

    Testway Ultra

    Linkenholt, South East, United Kingdom

    This amazing event is back with a 40 and 50 mile option. The course runs from north Hampshire to south Hampshire, with all this lovely county has to offer....

    £40 - £60
    • Running
    • Ultramarathon
  • APR18

    The Oldham Way – Red Rose Ultra

    Delph, North West, United Kingdom

    Red Rose Ultra is a 40 Mile loop from the Castleshaw centre (Delph) closely following the route of the Oldham Way Ultra with landscape that varies from...

    £41
    • Running
    • Ultramarathon
  • MAY9

    Dulux London Revolution Trails

    Marlow, South East, United Kingdom

    Escape the city and explore the great British countryside with hundreds of other trail-goers. Delve into the woodlands, test yourself on the Chiltern climbs...

    £27 - £59
    • Running
    • Ultramarathon
    • Marathon
    • Half Marathon
  • NOV8

    The Druid’s Challenge

    Ivinghoe, South East, United Kingdom

    You'll be following in the footsteps of travellers, herdsmen and soldiers who have used the Ridgeway since prehistoric times. Be entranced by the...

    £58 - £195
    • Running
    • Ultramarathon
  • NOV16

    Wendover Woods 50

    Halton, South East, United Kingdom

    The WW50 is a 50-mile foot race consisting of 5 x 10-mile loops on forest trails, entirely within Wendover woods. The course mixes some of the most...

    £85
    • Running
    • Ultramarathon
  • NOV16

    The Beacons Ultra

    Brecon, Wales, United Kingdom

    A mere 46ish mile mixed trail/mountain/canal/road run around the magnificent Brecon Beacons in the middle of November, when climatic conditions can vary...

    £55
    • Running
    • Ultramarathon
  • NOV16

    Kirkstall Abbey Trail Running Festival

    Leeds, Yorkshire and the Humber, United Kingdom

    This established trail running festival is back for another year and getting bigger and better every time. The event starts and finishes in the grounds of...

    £19 - £41
    • Running
    • Ultramarathon
    • Marathon
    • Half Marathon
  • NOV23

    Hardwolds 80

    Hessle, Yorkshire and the Humber, United Kingdom

    The Hardwolds 80 route follows the Wolds Way from Hessle to Filey passing through chalk landscapes with dry valleys and stunning wildlife alongside market...

    £110 - £112
    • Running
    • Ultramarathon
  • JUL4

    Pen Llyn Ultra

    Pwllheli, Wales, United Kingdom

    Tucked away beyond Snowdonias craggiest peaks with the Irish Sea on one side and Cardigan Bay on the other, the Lln has a distinctive, unspoilt character...

    £70 - £90
    • Running
    • Ultramarathon
  • JUN20

    Tsunami Ocean Trails

    The Wharf, South West, United Kingdom

    The TSUNAMI series of trail races is due to hit the North Devon and Cornish coastline this summer.

    We have chosen the most rugged, wild and remote...

    £24 - £102
    • Running
    • Ultramarathon
    • Marathon
  • NOV13

    Hell of A Hill Marathon 5 Day Challenge

    Heath Charnock, North West, United Kingdom

    Hell of a Hill Marathon is arguably the toughest 26.2 miles in the UK, and the toughest 5 consecutive marathons in 5 days in the World - only the toughest...

    £36 - £180
    • Running
    • Marathon
    • Ultramarathon
  • FEB29

    Chester Ultra

    Waverton, North West, United Kingdom

    The Race is hosted by the GB Ultras team with live online GPS tracking & 6 Checkpoints supporting runners spanning some of the very best & most...

    £79
    • Running
    • Ultramarathon
  • APR26

    Sea 2 Summit - The Offas Dyke Marathon & Half Marathon

    Prestatyn, Wales, United Kingdom

    The only way is up with these new Half Marathon/Marathon/Ultra distance races along the Offas Dyke footpath!

    Starting at Prestatyn seafront, the...

    £20
    • Running
    • Half Marathon
    • Marathon
    • Ultramarathon
  • NOV9

    Pen Llyn Ultra Marathon (Winter)

    Lon Golff, Wales, United Kingdom

    The race starts and finishes at the beach next to Aberech Sands Caravan Park near Pwllheli, with checkpoints / aid stations along the scenic...

    £65
    • Running
    • Ultramarathon
  • SEP28

    Snowdonia Slate Trail Challenge

    Bangor, Wales, United Kingdom

    The Snowdonia Slate trail Run Challenge - NEW FOR 2019!!

    A privately guided run challenge on this spectacular route, whcih takes in some of...

    £55 - £100
    • Running
    • Ultramarathon
  • OCT12

    Dark Peaks 30 Ultra Trail

    Hope, East Midlands, United Kingdom

    With great success from lasts year inaugural Dark Peaks 30 Ultra Trail, and some fantastic feedback from competitors.

    Being described by the elite...

    £45 - £70
    • Running
    • Ultramarathon
  • DEC27

    The Drop – Christmas Special

    Huddersfield, Yorkshire and the Humber, United Kingdom

    Using a little bit of military know how we have come up with possibly the most challenging race in the UK! You will be placed on our bus, blindfolded** and...

    £30 - £45
    • Running
    • Ultramarathon
    • 10 Miles
  • OCT19

    Yorkshire 3 Peaks Ultra

    Hawes, Yorkshire and the Humber, United Kingdom

    The 2019 Yorkshire 3 Peaks Ultra is an adventure for all ultra-racers, from first timers all the way to elite athletes. The route runs through superb and...

    £50 - £52
    • Running
    • Ultramarathon
  • NOV9

    Leicestershire Round - Series 2

    Market Harborough, East Midlands, United Kingdom

    Curious about ultramarathons trail running? Its a lot more fun off the beaten track.

    Welcome to Sole2Soul Running, Leicestershire's dedicated...

    £37 - £39
    • Running
    • Ultramarathon
  • MAY23

    The Grand Union Canal Race

    Birmingham, West Midlands, United Kingdom

    Regarded by many as Britains premier Ultra, this is a 145 mile continuous race from Gas Street Basin in the Centre of Birmingham, to Little Venice in the...

    £60 - £91
    • Running
    • Ultramarathon
  • MAY10

    Stroud Trail Marathon & Half Marathon

    Stroud, South West, United Kingdom

    The Stroud Trail Marathon and Half Marathon are a fabulous & challenging mixture of local trails, Cotswold hills, famous Towpaths, disused Railway...

    • Running
    • Ultramarathon
    • Marathon
    • Half Marathon
  • OCT17

    Kings Forest Trail Ultra Marathon, Marathon & Half

    Bury Saint Edmunds, East of England, United Kingdom

    The Kings Forest is just 4 miles outside Bury St Edmunds, easily accessible from East Anglia, London and the East Midlands. Provides a wonderful traffic...

    £30
    • Running
    • Ultramarathon
    • Marathon
  • JUN6

    Calderdale Way Ultra Races

    Todmorden, Yorkshire and the Humber, United Kingdom

    Famed for its iconic landmarks, immense scenery and runnable hills, the trails and fells of the Calderdale Way is a favourite among runners and walkers from...

    • Running
    • Ultramarathon
  • MAY16

    Pilgrims Trail 60

    Bangor, Wales, United Kingdom

    Hundreds of years have past since pilgrims in their thousands were finding their way to Ynys Enlli/Bardsey Island, drawn there by stories of the special...

    £80
    • Running
    • Ultramarathon
  • JUN6

    The Welsh 3000 Run Challenge

    Pen-y-Pass, Wales, United Kingdom

    The Welsh 3000s Run Challenge is a 1 day, fully guided and supported run along the highest mountains of Wales. The traditional 24 hour challenge to...

    £70
    • Running
    • Ultramarathon
  • FEB8

    Leicestershire Round - Series 3

    Mountsorrel, East Midlands, United Kingdom

    Curious about ultramarathons trail running? Its a lot more fun off the beaten track.

    Welcome to Sole2Soul Running, Leicestershire's dedicated...

    £33 - £39
    • Running
    • Ultramarathon
  • MAY30

    Viking 100 Endurance Run

    Reculver, South East, United Kingdom

    We've been very fortunate to have been granted permission to hold a 100 mile ultra event out of Brooks Farm, Reculver Kent. The kind farmers there...

    £38
    • Running
    • Ultramarathon
    • 5k
  • MAY9

    Chiltern Hills Challenge

    Tring Station, East of England, United Kingdom

    The Chiltern Hills provide an incredible backdrop for this 2 day trail running adventure! We cover around 18 miles each day and whether you are new to...

    £275
    • Running
    • Ultramarathon
  • JUN20

    Norfolk 100k

    Castle Acre, East of England, United Kingdom

    After a loop around Castle Acre the route follows the Peddars Way to the coast at Holme next-the-Sea, before following the coastal path all the way to...

    £68 - £70
    • Running
    • Ultramarathon
  • MAR21

    2XU Jogle

    John o' Groats, Scotland, United Kingdom

    An incredible challenge, an incredible journey: a run from John O' Groats to Lands End - 860 miles over 17 days. That's averaging 50 miles each...

    £2,650
    • Running
    • Ultramarathon
  • NOV30

    Endurancelife Dorset Marathon

    Wareham, South West, United Kingdom

    Given World Heritage status in 2001, The Jurassic Coast Path through Dorset is quite simply unique. This is the only location on the planet where in a few...

    £33 - £77
    • Running
    • Ultramarathon
    • Marathon
    • Half Marathon
    • 10k
  • OCT19

    Endurancelife Coastal Trail Series – Suffolk

    Dunwich, East of England, United Kingdom

    Natural England, the RSBP and the National Trust are but a sample of the many key-holders managing this sensitive and beautiful landscape. We are privileged...

    £33 - £66
    • Running
    • Ultramarathon
    • Marathon
    • Half Marathon
    • 10k
  • DEC28

    Great Barrow Challenge – Xmas Triple Tipple

    Barrow, East of England, United Kingdom

    Take part on this event which consist of 3 marathons in 3 consecutive...

    • Running
    • Marathon
    • Half Marathon
    • Ultramarathon
    • 5k
    • 10k
  • OCT26

    The OMM Mountain Marathon

    Moffat, Scotland, United Kingdom

    Fifty years and over 100,000 entries later, the Original Mountain Marathon continues to go from strength to strength as an icon of the UKs outdoor and...

    £75 - £90
    • Running
    • Ultramarathon
  • SEP29

    Monster Run Fest

    Ely, East of England, United Kingdom

    The Run Fest started out as just the Ultra event, and in 2014 became the Run Fest and added two other distances on the same day. So you now have the choice...

    £25
    • Running
    • Half Marathon
    • Marathon
    • Ultramarathon
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Search By Type of Ultramarathons

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About ultramarathons in the UK

Ultramarathons, or ultra runs, are endurance running races or treks beyond the standard marathon distance of 26.2 miles (42.2k). The most common distances for ultra running are 50k, 100k, 50 miles, or 100 miles (aka centurion races). Ultras take place on roads or trails across the UK, and some last for 24 hours or multiple days. Some multi-day stage races are even self-sufficient, where runners must carry all of there equipment and provisions with them for the duration of the race.

What are the best UK ultra marathons?

The best attended ultramarathons in the UK are the Dixons Carphone Race to the Stones along the famous Ridgeway, with 2,500 participants, and the historic Thames Path Challenge, with 3,000 participants. The Ridgeway 40 is one of the best value ultramarathons in the UK. For the best scenic ultras, the Scottish Highlands and Snowdonia are popular areas for mountainous ultras, or for coastal routes, try out the Jurassic Coast and The Endurance Life Coastal Trail Series. The longest ultra race in the UK is the Monarch's Way Ultra, which covers 615-miles (990k) in the course of 14 days. There are many ultra marathon events across the UK to choose from, depending on your preferences. Check out our list of UK ultra marathons to find the best event for you.

How long should I train for an ultramarathon?

It is important to devote a significant amount of time and effort to training if you are wanting to complete an ultramarathon. Everybody has different levels of fitness and the race distances vary, so it is difficult to be precise with training plans. Most first-time ultrarunners will already have lots of running experience, so 6-10 weeks of specific training should get you ready for a 50k ultra. During your training, it is also important to get used to in-race nutrition and running on trails.