2026-2027 UK Ultra Marathon Events | Ultramarathon Calendar

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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!

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40 events found

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Back Yard Ultra

Scouts Honour Backyard Ultra

Distance: Unlimited

Elevation: 21M

Location: Worsley, Manchester

Date: Sat, 1st Aug 2026

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Back Yard Ultra

London Backyard Ultra

Distance: Unlimited

Elevation: 116M

Location: Croydon, London

Date: Sat, 29th Aug 2026

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Back Yard Ultra

Gosfield Backyard Ultra

Distance: Unlimited

Elevation: 28M

Location: Gosfield, Essex

Date: Sat, 29th Aug 2026

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Back Yard Ultra

Devon and Cornwall Backyard Ultra

Distance: Unlimited

Elevation: 127M

Location: Plymouth, Devon

Date: Sat, 29th Aug 2026

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Back Yard Ultra

Kinloss Backyard Ultra

Distance: Unlimited

Elevation: -

Location: Kinloss, Scotland

Date: Sat, 29th Aug 2026

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Back Yard Ultra

Rasselbock Hardwick Hall BYU

Distance: Unlimited

Elevation: -

Location: Hardwick Hall, Derbyshire

Date: Sat, 5th Sep 2026

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Back Yard Ultra

Summit Mentality Backyard Ultra

Distance: Unlimited

Elevation: -

Location: Brentwood, Essex

Date: Fri, 18th Sep 2026

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Back Yard Ultra

Turbine Backyard Ultra

Distance: Unlimited

Elevation: 121M

Location: West Shields Farm, Satley

Date: Sat, 19th Sep 2026

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Back Yard Ultra

Trails & Tarmac Summer Back Yard Ultra

Distance: Unlimited

Elevation: 86M

Location: Crickhowell, Wales

Date: Sat, 19th Sep 2026

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Back Yard Ultra

GPC Backyard Ultra

Distance: Unlimited

Elevation: -

Location: Swadlincote, Derbyshire

Date: Fri, 25th Sep 2026

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Back Yard Ultra

Isle of Man Backyard Ultra

Distance: Unlimited

Elevation: -

Location: Archallagan Plantation, Isle of Man

Date: Fri, 2nd Oct 2026

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Back Yard Ultra

Putney Loop Backyard Ultra

Distance: Unlimited

Elevation: -

Location: River Thames, London

Date: Sat, 3rd Oct 2026

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Back Yard Ultra

Cornwall Backyard Ultra

Distance: Unlimited

Elevation: 92M

Location: St Eval, Cornwall

Date: Sat, 3rd Oct 2026

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Back Yard Ultra

The District Backyard Ultra

Distance: Unlimited

Elevation: -

Location: Lake District

Date: Sat, 3rd Oct 2026

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Back Yard Ultra

Loop Til You Drop

Distance: Unlimited

Elevation: -

Location: Turvey, Bedfordshire

Date: Sat, 10th Oct 2026

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Back Yard Ultra

Among The Pines Backyard Ultra

Distance: Unlimited

Elevation: 167M

Location: Gisburn Forest, Lancashire

Date: Sat, 24th Oct 2026

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Back Yard Ultra

Endure The Moor

Distance: Unlimited

Elevation: 36M

Location: Town Moor, Newcastle

Date: Sat, 31st Oct 2026

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Back Yard Ultra

Golspie Backyard Ultra

Distance: Unlimited

Elevation: 79M

Location: Dunrobin Castle, Scotland

Date: Sat, 7th Nov 2026

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Back Yard Ultra

Kent Backyard Ultra - Dover

Distance: Unlimited

Elevation: -

Location: Great Farthingloe Farm, Dover

Date: Sat, 9th Jan 2027

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Back Yard Ultra

Longbridge 100 Winter BYU

Distance: Unlimited

Elevation: 189M

Location: Litlington, East Sussex

Date: Fri, 22nd Jan 2027

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Back Yard Ultra

Trails & Tarmac Winter Back Yard Ultra

Distance: Unlimited

Elevation: 86M

Location: Crickhowell, Wales

Date: Sat, 6th Feb 2027

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Back Yard Ultra

Rasselbock Sherwood Pines Backyard Ultra

Distance: Unlimited

Elevation: 63M

Location: Sherwood Pines, Nottinghamshire

Date: Sat, 27th Mar 2027

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Back Yard Ultra

Beacon Hill Backyard Ultra

Distance: Unlimited

Elevation: 180M

Location: Beacon Hill Country Park, Leicestershire

Date: Sat, 27th Mar 2027

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Back Yard Ultra

Kent Backyard Ultra - Sholden

Distance: Unlimited

Elevation: 8M

Location: Deal, Kent

Date: Sat, 10th Apr 2027

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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

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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.

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UK Ultra Marathons 2026 - 2027

Your Next Ultra Starts Here!

UK ULTRA MARATHON CALENDAR

Scouts Honour Backyard Ultra

London Backyard Ultra

Gosfield Backyard Ultra

Devon and Cornwall Backyard Ultra

Kinloss Backyard Ultra

Rasselbock Hardwick Hall BYU

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

EXPLORE UPCOMING UK ULTRAMARATHONS

Latest Running News

Salomon Launches UK Repair Programme

UTMB Ultra-Trail Snowdonia 100K - Race Report

Backyard Ultra Kit List

Yellow Belly Backyard Ultra - Race Report

UTMB Arc of Attrition 100 Miles - Race Report

2025 British Ultra Running Highlights

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?