Find Trail Ultra Marathon Races

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Race	Difficulty Score	Distance	Elevation	Month	Compare Races	Race Website
Ultra-Trail Snowdonia UTS 100KM by UTMB Ultra Marathon Race in May 2026 near Llanberis		98.00km	4633metres	May	Compare this race	Sign up to race
UTS 100M Ultra-Trail Snowdonia by UTMB 100 Mile Ultra Marathon Race in May near Llanberis	364.25	160.00km	9795metres	May	Compare this race	Sign up to this race
UTS 50K Ultra-Trail Snowdonia by UTMB Ultra Marathon Race in May near Snowdonia	176.24	49.00km	3384metres	May	Compare this race	Sign up to race
Pegasus The Eddum 50 Mile Ultra Marathon Race in August near Epynt Way	159.43	80.00km	2353metres	August	Compare this race	Sign up to race
Ultra-Trail Snowdonia UTS 100KM by UTMB Ultra Marathon Race in May 2025 near Llanberis		102.00km	6494metres	May	Compare this race	Sign up to race
Pegasus HOWUM 30 Mile Ultra Marathon Race in Mid Wales in May	113.02	48.00km	1302metres	May	Compare this race	Sign up to race
Gower Ultra 50 Miles Ultra Marathon Race in October Near Gower Peninsula AONB	125.19	81.00km	1519metres	October	Compare this race	Sign up to race
Out Fit Brenig Way 50K Ultra Trail Race in October near Corwen	116.07	50.00km	1417metres	October	Compare this race	Sign up to race
Ultra Scotland® 50 Mile Ultra Marathon Race in June near Southern Upland Way	184.17	90.00km	2757metres	June	Compare this race	Sign up to race
SheUltra 50KM Ultra Marathon near North Wales in April		49.00km	1019metres	April	Compare this race	Sign up to race
Coast to Coast Winter 59K Ultra Marathon Race in November near Llyn Peninsula	114.40	59.00km	1450metres	November	Compare this race	Sign up to race
Run Walk Crawl 55km Winter Celtic Ultra Marathon Race in December Near Swansea	117.30	55.00km	1522metres	December	Compare this race	Sign up to race
South Wales 200 by Wild Horse Ultra Marathon in April near Brecon Beacons	510.61	320.00km	9171metres	May	Compare this race	Sign up to this race
Ring o'Fire 130 a 212km Non-Stop Ultra Marathon in September near Anglesey	287.64	211.00km	3444metres	August	Compare this race	Sign up to this race
Runningmonk Rollin 100 Mile Ultra Marathon in July near Bishops Castle		159.00km	4673metres	July	Compare this race	Sign up to race
Preseli UltraBeast 51KM Ultra Marathon Trail Running Race in May near Pembrokeshire	117.31	51.00km	1701metres	May	Compare this race	Sign up to race
The Dragons Back 380km Multi Stage Ultra Marathon Race Through Wales in September	691.39	373.00km	17029metres	September	Compare this race	Sign up to race
Run Walk Crawl The Dragon 50 Mile Ultra Marathon in South Wales in July	121.49	79.00km	1041metres	July	Compare this race	Sign up to race
Maverick Adidas Terrex X-Series Exmoor 58km Ultra Marathon Race in May near Devon	157.66	55.00km	2449metres	May	Compare this race	Sign up to race
EPONA 100 Mile Ultra Marathon in June near Bannau Brycheiniog South Wales	289.98	161.00km	5408metres	June	Compare this race	Sign up to race
The Lap 74km Ultra Marathon Around Lake Windermere in May and September in the Lake District		74.00km	2543metres	September, May	Compare this race	Sign up to race
Endurance Life Pembrokeshire 35 Mile Ultra Marathon Race in April near Little Haven	104.80	55.00km	1180metres	April	Compare this race	Sign up to race
Pegasus VOGUM 40 Mile Ultra Marathon Race in June	98.25	64.00km	825metres	June	Compare this race	Sign up to race
Blacks to the Beacons 50 Miles Ultra Marathon Race in May near South Wales	182.86	82.00km	3156metres	May	Compare this race	Sign up to this race
Apex Running Ultra Tour of the Quarries 87km Ultra Marathon in October Near Bangor	177.39	87.00km	2829metres	October	Compare this race	Sign up to race
The CANUM 40 Mile Ultra Marathon Race in April Near Brecon	101.63	64.00km	504metres	April	Compare this race	Sign up to this race

🏃 Course Basics & Intensity

Distance: The total length of the race in kilometers or miles.
Elevation per KM: The average vertical gain every kilometer; higher numbers mean steeper races.
Kilometer Effort: The "real-feel" distance combining flat length and vertical climbing into one effort metric.
Difficulty Score: A unique rating calculated from distance, ascent, and terrain technicality.
DNF Rate: The percentage of runners who historically do not finish the race.
Ground Type: Defines the surface, such as hard-packed trail, technical mountain rock, or bog.

⛰️ Climbing & Peaks

Categorised Climbs: The total number of significant, sustained uphill sections on the course.
Avg/Max Altitude: The average and peak heights above sea level you will reach during the race.
Uphill/Downhill %: The percentage of the course spent climbing, descending, or running on flat ground.
Steepest Hill: The maximum gradient percentage you will encounter on the toughest climb.
Cat Biggest Climb: The length and total vertical gain of the single largest climb in the race.

⏱️ Logistics & Timing

Finish Cut-Off: The total time allowed to reach the finish line before being disqualified.
Pace to Finish: The minimum speed (km/h) required to beat the cut-offs, including aid station stops.
Start Time: Whether the race begins in the morning, evening, or at night.
Time of Day: Indicates if you will be running through the day, the night, or both.
Trajectory: Defines if the race is a single loop, a point-to-point, or an out-and-back route.

⛺ Support & Entry

Checkpoints: The total number of aid stations and the average distance between them.
Support Types: Details if the race is self-supported or provides water, food, and medical aid.
Navigation Type: Whether the course is fully marked with flags or requires map-and-compass skills.
UTMB Stones: The number of qualifying stones awarded for entry into the UTMB World Series Finals.
Entry Fee per KM: The total cost of the race divided by its distance for easy price comparison.

🌲 Environment & Beauty

Beauty Spot Rating: A star rating based on the scenic landmarks and views along the route.
Mountain Ranges: The specific mountain groups the race traverses (e.g., Eryri, Glyderau).
Wilderness %: The proportion of the course that takes place in wild, unmanaged natural habitats.
Avg Temp: The typical temperature expected during the month the race is held.