13 Valleys Ultra
Distance: 114 Miles
Elevation: 7,000M
Location: Keswick, Lake District
Date: Fri, 25th Sep 2026
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!
233 events found
Map View100 Miles
Featured Event
Back Yard Ultra
GPC Backyard Ultra
Distance: Unlimited
Elevation: -
Location: Swadlincote, Derbyshire
Date: Fri, 25th Sep 2026
100 Miles
Cheshire Ring 100 Miler
Distance: 100 Miles
Elevation: 345M
Location: Manchester
Date: Sat, 26th Sep 2026
100 KM
7 Valleys Ultra
Distance: 110KM
Elevation: 3,900M
Location: Waterhead, Ambleside
Date: Sat, 26th Sep 2026
50 KM
5 Valleys Ultra
Distance: 58.4KM
Elevation: 2,303M
Location: Waterhead, Ambleside
Date: Sat, 26th Sep 2026
100 Miles
Pilgrims Ultra 100 Miler
Distance: 100 Miles
Elevation: 2,133M
Location: Holy Island, Lindisfarne
Date: Sat, 26th Sep 2026
100 KM
Pilgrims Ultra 100K
Distance: 102KM
Elevation: 1,219M
Location: Holy Island, Lindisfarne
Date: Sat, 26th Sep 2026
50 KM
Pilgrims Ultra 50K
Distance: 52KM
Elevation: 518M
Location: Holy Island, Lindisfarne
Date: Sat, 26th Sep 2026
50 KM
Yorkshire Reservoir Dogs Ultra
Distance: 52KM
Elevation: 1,066M
Location: Otley, Leeds
Date: Sat, 26th Sep 2026
50 KM
Ladybower Reservoir 50K
Distance: 52KM
Elevation: 1,490M
Location: Hope Valley, Peak District
Date: Sat, 26th Sep 2026
50 KM
Tower to Castle Ultra 30
Distance: 48KM
Elevation: 144M
Location: Blackpool Tower
Date: Sat, 26th Sep 2026
Back Yard Ultra
Isle of Man Backyard Ultra
Distance: Unlimited
Elevation: -
Location: Archallagan Plantation, Isle of Man
Date: Fri, 2nd Oct 2026
Back Yard Ultra
Putney Loop Backyard Ultra
Distance: Unlimited
Elevation: -
Location: River Thames, London
Date: Sat, 3rd Oct 2026
Back Yard Ultra
Cornwall Backyard Ultra
Distance: Unlimited
Elevation: 92M
Location: St Eval, Cornwall
Date: Sat, 3rd Oct 2026
Mackyard Ultra London
Distance: Unlimited
Elevation: -
Location: Redbridge Cycling Centre, London
Date: Sat, 3rd Oct 2026
Back Yard Ultra
The District Backyard Ultra
Distance: Unlimited
Elevation: -
Location: Lake District
Date: Sat, 3rd Oct 2026
50 Miles
Glasgow to Edinburgh Ultra Marathon
Distance: 57 Miles
Elevation: 231M
Location: Glasgow
Date: Sat, 10th Oct 2026
50 Miles
Lakes In A Day
Distance: 50 Miles
Elevation: 4,000M
Location: Caldbeck, Cumbria
Date: Sat, 10th Oct 2026
Back Yard Ultra
Loop Til You Drop
Distance: Unlimited
Elevation: -
Location: Turvey, Bedfordshire
Date: Sat, 10th Oct 2026
50 KM
The Loop 50K Ultra
Distance: 50KM
Elevation: 1,480M
Location: Camp Plas, Wales
Date: Sat, 10th Oct 2026
100 Miles
South Hams 100 Mile Ultra
Distance: 100 Miles
Elevation: 4,890M
Location: Plymouth
Date: Sat, 10th Oct 2026
50 Miles
South Hams 44 Mile Ultra
Distance: 44 Miles
Elevation: 1,947M
Location: Plymouth
Date: Sat, 10th Oct 2026
50 KM
Endurance Life Suffolk 50K
Distance: 52KM
Elevation: 344M
Location: Dunwich, Suffolk
Date: Sat, 10th Oct 2026
Multi Day
Race Across Wales
Distance: 228KM
Elevation: 6,289M
Location: Greenfield, Wales
Date: Fri, 16th Oct 2026
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