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UK Ultramarathons: 2023 - 2024

Image of people at 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.
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Top Ultramarathons in the UK

Events that our community are currently loving

XTERRA Snowdonia Trail Marathon

Sunday, 9 Jul 2023

XTERRA Snowdonia Trail Marathon

LocationIndicator

Caernarfon, Gwynedd

Participants

ultramarathon, marathon, half marathon, 10k

Star5

(48 reviews)

FilledTicket£32.99 – £93.94
Booking perksGreat sceneryTrail
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Running GP at Goodwood Motor Circuit - February

Sunday, 12 Feb 2023

Running GP at Goodwood Motor Circuit - February

LocationIndicator

Chichester, West Sussex

Participants

5k, 10k, half marathon, marathon, ultramarathon and more

Star4.5

(10 reviews)

FilledTicket£23.40 – £47
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TEC Lulworth Cove Trail Running Challenge

Saturday, 25 Feb 2023

TEC Lulworth Cove Trail Running Challenge

LocationIndicator

Wareham, Dorset

Participants

ultramarathon, marathon, half marathon, 10k

FilledTicket£33 – £68
Booking perksGreat sceneryTrail
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Popular UK Ultramarathons

XTERRA Snowdonia Trail Marathon

Sunday, 9 Jul 2023

XTERRA Snowdonia Trail Marathon

LocationIndicator

Caernarfon, Gwynedd

Participants

ultramarathon, marathon, half marathon, 10k

Star5

(48 reviews)

FilledTicket£32.99 – £93.94
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Running GP at Goodwood Motor Circuit - February

Sunday, 12 Feb 2023

Running GP at Goodwood Motor Circuit - February

LocationIndicator

Chichester, West Sussex

Participants

5k, 10k, half marathon, marathon, ultramarathon and more

Star4.5

(10 reviews)

FilledTicket£23.40 – £47
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TEC Lulworth Cove Trail Running Challenge

Saturday, 25 Feb 2023

TEC Lulworth Cove Trail Running Challenge

LocationIndicator

Wareham, Dorset

Participants

ultramarathon, marathon, half marathon, 10k

FilledTicket£33 – £68
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Run to the Sea Brighton 2023

Saturday, 6 May 2023

Run to the Sea Brighton 2023

LocationIndicator

Christs Hospital, West Sussex

Participants

ultramarathon

FilledTicket£65
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TEC Brecon Beacons Trail Challenge

Saturday, 6 May 2023

TEC Brecon Beacons Trail Challenge

LocationIndicator

Talybont-on-Usk, Powys

Participants

ultramarathon, marathon, half marathon, 10k and more

FilledTicket£33 – £68
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Bewl Water 10k, Half Marathon, Marathon & Ultra

Saturday, 13 May 2023

Bewl Water 10k, Half Marathon, Marathon & Ultra

LocationIndicator

Wadhurst, East Sussex

Participants

ultramarathon, marathon, half marathon, 10k

Star4.5

(72 reviews)

FilledTicket£26 – £52
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The Northants 'Shires and Spires Event' - Ultra 35, Marathon, Half Marathon, 10k

Sunday, 14 May 2023

The Northants 'Shires and Spires Event' - Ultra 35, Marathon, Half Marathon, 10k

LocationIndicator

Naseby, Northamptonshire

Participants

ultramarathon, marathon, half marathon, 10k

Star4.5

(18 reviews)

FilledTicket£35 – £55
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Blair Castle Trail Weekender

Friday, 2 Jun 2023

Blair Castle Trail Weekender

LocationIndicator

Pitlochry, Perth and Kinross

Participants

ultramarathon, 5k and more

Star4.5

(2 reviews)

FilledTicket£10 – £62
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Ultra North

Saturday, 15 Jul 2023

Ultra North

LocationIndicator

Blaydon-on-Tyne, Tyne and Wear

Participants

ultramarathon

Star4.5

(123 reviews)

FilledTicket£38 – £68
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Bath Two Tunnels Railway Races - August

Sunday, 20 Aug 2023

Bath Two Tunnels Railway Races - August

LocationIndicator

Bath, Bath and North East Somerset

Participants

half marathon, 5k, ultramarathon, marathon, 10k and more

Star4.5

(22 reviews)

FilledTicket£10 – £50
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Bewl Water Half Marathon, Marathon, Ultra & 10k - September

Saturday, 9 Sept 2023

Bewl Water Half Marathon, Marathon, Ultra & 10k - September

LocationIndicator

Lamberhurst, East Sussex

Participants

ultramarathon, marathon, half marathon, 10k

Star4.5

(9 reviews)

FilledTicket£26 – £52
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TEC Lake District Challenge

Saturday, 16 Sept 2023

TEC Lake District Challenge

LocationIndicator

Grange, Cumbria

Participants

ultramarathon, marathon, half marathon, 10k, 5k and more

FilledTicket£33 – £80
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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.

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