Find Trail Ultra Marathon Races

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Race	Difficulty Score	Distance	Elevation	Month	Compare Races	Race Website
The Dragon 100 Ultra Marathon in South Wales in July near The Gower	226.47	160.00km	2807metres	July	Compare this race	Sign up to this race
Vale Coastal 52km Ultra Marathon Race in April Near Cardiff	87.79	52.00km	879metres	April	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
Run Walk Crawl Gower Bach 54km Ultra Marathon Race in October near Gower Peninsula	96.97	54.00km	1197metres	October	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
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
Calon Lân 300 Mile Multi Day Ultra-Marathon Race in July Down the Length of Wales		477.00km	20618metres	July	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
Endurancelife Gower 35 Mile Ultra Marathon Race in South Wales in November	109.88	55.00km	1208metres	November	Compare this race	Sign up to race

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.

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.

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.

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.

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.