2026-2027 UK Ultra Marathon Events | Ultramarathon Calendar

🎉 New Kit List Available 🎉 - View Here

UK ULTRA MARATHON CALENDAR

Welcome to the definitive guide for ultramarathon events across the UK in 2026 - 2027! Whether you're a seasoned ultra-runner looking for your next epic challenge or an aspiring athlete ready to tackle your first long-distance race, you've come to the right place.

With more than 120 of the top UK ultra running events listed, this comprehensive ultra marathon calendar makes it easy to discover races across England, Scotland, and Wales. From gruelling 100 mile challenges through national parks to scenic 50km routes along coastal paths, I've curated a diverse selection to help you find the perfect event!

Clear Filters

43 events found

Map View

Back Yard Ultra

Summit Mentality Backyard Ultra

Distance: Unlimited

Elevation: -

Location: Brentwood, Essex

Date: Fri, 18th Sep 2026

More Event Info

Back Yard Ultra

Turbine Backyard Ultra

Distance: Unlimited

Elevation: 121M

Location: West Shields Farm, Satley

Date: Sat, 19th Sep 2026

More Event Info

Back Yard Ultra

Trails & Tarmac Summer Back Yard Ultra

Distance: Unlimited

Elevation: 86M

Location: Crickhowell, Wales

Date: Sat, 19th Sep 2026

More Event Info

Back Yard Ultra

GPC Backyard Ultra

Distance: Unlimited

Elevation: -

Location: Swadlincote, Derbyshire

Date: Fri, 25th Sep 2026

More Event Info

Back Yard Ultra

Isle of Man Backyard Ultra

Distance: Unlimited

Elevation: -

Location: Archallagan Plantation, Isle of Man

Date: Fri, 2nd Oct 2026

More Event Info

Back Yard Ultra

Putney Loop Backyard Ultra

Distance: Unlimited

Elevation: -

Location: River Thames, London

Date: Sat, 3rd Oct 2026

More Event Info

Back Yard Ultra

Cornwall Backyard Ultra

Distance: Unlimited

Elevation: 92M

Location: St Eval, Cornwall

Date: Sat, 3rd Oct 2026

More Event Info

Back Yard Ultra

The District Backyard Ultra

Distance: Unlimited

Elevation: -

Location: Lake District

Date: Sat, 3rd Oct 2026

More Event Info

Back Yard Ultra

Loop Til You Drop

Distance: Unlimited

Elevation: -

Location: Turvey, Bedfordshire

Date: Sat, 10th Oct 2026

More Event Info

Back Yard Ultra

Among The Pines Backyard Ultra

Distance: Unlimited

Elevation: 167M

Location: Gisburn Forest, Lancashire

Date: Sat, 24th Oct 2026

More Event Info

Back Yard Ultra

Endure The Moor

Distance: Unlimited

Elevation: 36M

Location: Town Moor, Newcastle

Date: Sat, 31st Oct 2026

More Event Info

Back Yard Ultra

Golspie Backyard Ultra

Distance: Unlimited

Elevation: 79M

Location: Dunrobin Castle, Scotland

Date: Sat, 7th Nov 2026

More Event Info

Back Yard Ultra

Kent Backyard Ultra - Dover

Distance: Unlimited

Elevation: -

Location: Great Farthingloe Farm, Dover

Date: Sat, 9th Jan 2027

More Event Info

Back Yard Ultra

Longbridge 100 Winter BYU

Distance: Unlimited

Elevation: 189M

Location: Litlington, East Sussex

Date: Fri, 22nd Jan 2027

More Event Info

Back Yard Ultra

Trails & Tarmac Winter Back Yard Ultra

Distance: Unlimited

Elevation: 86M

Location: Crickhowell, Wales

Date: Sat, 6th Feb 2027

More Event Info

Back Yard Ultra

Rasselbock Sherwood Pines Backyard Ultra

Distance: Unlimited

Elevation: 63M

Location: Sherwood Pines, Nottinghamshire

Date: Sat, 27th Mar 2027

More Event Info

Back Yard Ultra

Beacon Hill Backyard Ultra

Distance: Unlimited

Elevation: 180M

Location: Beacon Hill Country Park, Leicestershire

Date: Sat, 27th Mar 2027

More Event Info

Back Yard Ultra

Kent Backyard Ultra - Sholden

Distance: Unlimited

Elevation: 8M

Location: Deal, Kent

Date: Sat, 10th Apr 2027

More Event Info

Back Yard Ultra

LSD Backyard Ultra

Distance: Unlimited

Elevation: 60M

Location: Morpeth, Northumberland

Date: Sat, 10th Apr 2027

More Event Info

Back Yard Ultra

Beecraigs Backyard Ultra

Distance: Unlimited

Elevation: 150M

Location: Linlithgow, Scotland

Date: Sat, 24th Apr 2027

More Event Info

Back Yard Ultra

Medieval Backyard Ultra

Distance: Unlimited

Elevation: 52M

Location: South Wales

Date: Sat, 24th Apr 2027

More Event Info

Back Yard Ultra

Portland Pig Backyard Ultra

Distance: Unlimited

Elevation: 98M

Location: Isle of Portland, Dorset

Date: Fri, 30th Apr 2027

More Event Info

Back Yard Ultra

Bristol Backyard Ultra

Distance: Unlimited

Elevation: 160M

Location: Blaise Castle Estate, Bristol

Date: Sat, 1st May 2027

More Event Info

Back Yard Ultra

Brighton Backyard Ultra

Distance: Unlimited

Elevation: 177M

Location: Brighton

Date: Sat, 8th May 2027

More Event Info

EXPLORE UPCOMING UK ULTRAMARATHONS

Browse and discover ultra marathon races across all distances, terrains and elevation. Whether you're building up to your first ultra or adding another 100 miler to your calendar, the listings are here to help you find the perfect event.

Sort by distance, climb or location to easily find races that fit your training plan and travel preferences. With new ultra marathons added weekly, there’s always another challenge on the horizon.

Don’t just run – go the distance. Find your next ultra now.

50k Ultras 50 Mile Ultras 100k Ultras 100 Mile Ultras Multi-Day Ultras Backyard Ultras

Latest Running News

News

UTMB Mandatory Red Light Rule for 2026

UTMB organisers have introduced a rule requiring runners to use a forward-facing red light during…

Keep Reading

News

Ex-Rugby Pro Runs 100 Ultras in 100 Days For Brain Injury Awareness

Former rugby pro David Jacko Jackson is attempting 100 ultramarathons in 100 consecutive days to…

Keep Reading

News

Salomon Launches UK Repair Programme

Got a ripped waterproof or a broken running vest? Salomon's new UK repair programme for clothing…

Keep Reading

Race Reports

UTMB Ultra-Trail Snowdonia 100K - Race Report

From knee-deep bogs to a technical elevation, is UTS the UK's toughest 100k ultramarathon

Keep Reading

News

Backyard Ultra Kit List

Preparing for your first backyard ultra? Discover the essential backyard ultra kit, nutrition tips,…

Keep Reading

Race Reports

Yellow Belly Backyard Ultra - Race Report

The inaugural Yellow Belly Backyard Ultra in the Lincolnshire Wolds. Punchy hills, uneven trails,…

Keep Reading

View More Articles

FAQs

What is an ultramarathon?

An ultramarathon is any running event that exceeds the traditional marathon distance of 26.2 miles (42.195 kilometres). Common formats include 50k, 100k, 50 miles, 100 miles, and multi-day endurance events.

How can I search for ultra marathons in my area?

GB Ultra Runner allows you to filter events by location, distance category, elevation and organiser. You can browse events by country, including ultramarathons in Scotland, England and Wales, or use the ultramarathon map to find races near you.

How often are ultra marathons added or updated?

I aim to keep the event listings fresh by updating the site frequently, usually on a weekly basis. This includes adding new races, updating details and removing any cancelled or outdated ultras.

Can I recommend or add a race to your site?

Yes, definitely! If you’re a race organiser or know of an ultra that’s not on the list, you’re welcome to submit it. I manually review every submission to ensure it meets the criteria and provides accurate information. Click here for details on how to list your ultra event.

Do I have to pay to use the website?

Nope, this is a passion project and my aim is to create a super user-friendly resource for all things ultra running …free of charge!

What does the 'elevation' filter refer to?

This filter helps you choose events based on total elevation gain. Some races follow flatter terrain, while others involve steep mountain climbs. I categorise events so you can find ones that match your training and experience level.

I'm new to ultra running, any tips?

Training for an ultra requires gradual progression, good kit choices and smart fuelling. While I don’t offer coaching, I am in the process of putting together some ultramarathon training plans to help new commers get started. Over the coming months I'll also be posting some running gear reviews so keep and eye out for that too.

How do I find an ultra marathon in the UK?

The best way to find an ultra marathon in the UK is to use a dedicated ultra marathon finder that allows you to filter by distance (50k, 100k, 100 miles+), terrain, and location. At GB Ultra Runner, we provide a comprehensive, human-verified directory of races across England, Scotland, and Wales. Simply use our search tool at the top of this page to filter by month or region to find your next challenge.

What is the best ultra finder?

While there are several options available, the best ultra finder is one that offers more than just a list. GB Ultra Runner is widely considered one of the UK’s leading resource because we offer an integrated ecosystem for ultra-runners:

Comprehensive Listings: The most up-to-date calendar of UK ultra marathons.
Coach Directory: A dedicated Ultra Marathon Coach Directory to help you find professional guidance for your specific goals.
Pace Calculator: Use our Ultra Pace Calculator to nail your race-day strategy and cut-off timings.
Reviews & Reports: Stay informed with the latest gear reviews and race reports from your favourite ultras, written by runners for runners.

Filter Races

UK Ultra Marathons 2026 - 2027

Your Next Ultra Starts Here!

UK ULTRA MARATHON CALENDAR

Summit Mentality Backyard Ultra

Turbine Backyard Ultra

Trails & Tarmac Summer Back Yard Ultra

GPC Backyard Ultra

Isle of Man Backyard Ultra

Putney Loop Backyard Ultra

Cornwall Backyard Ultra

The District Backyard Ultra

Loop Til You Drop

Among The Pines Backyard Ultra

Endure The Moor

Golspie Backyard Ultra

Kent Backyard Ultra - Dover

Longbridge 100 Winter BYU

Trails & Tarmac Winter Back Yard Ultra

Rasselbock Sherwood Pines Backyard Ultra

Beacon Hill Backyard Ultra

Kent Backyard Ultra - Sholden

LSD Backyard Ultra

Beecraigs Backyard Ultra

Medieval Backyard Ultra

Portland Pig Backyard Ultra

Bristol Backyard Ultra

Brighton Backyard Ultra

EXPLORE UPCOMING UK ULTRAMARATHONS

Latest Running News

UTMB Mandatory Red Light Rule for 2026

Ex-Rugby Pro Runs 100 Ultras in 100 Days For Brain Injury Awareness

Salomon Launches UK Repair Programme

UTMB Ultra-Trail Snowdonia 100K - Race Report

Backyard Ultra Kit List

Yellow Belly Backyard Ultra - Race Report

FAQs

What is an ultramarathon?

How can I search for ultra marathons in my area?

How often are ultra marathons added or updated?

Can I recommend or add a race to your site?

Do I have to pay to use the website?

What does the 'elevation' filter refer to?

I'm new to ultra running, any tips?

How do I find an ultra marathon in the UK?

What is the best ultra finder?

Got your mandatory kit sorted?