Getting In · International ultra

Dragon's Back Race

Six days from Conwy Castle in the north to Cardiff Castle in the south, along the mountainous spine of Wales, navigating yourself across terrain with no course markings. It ran once in 1992, was considered too hard, and came back.

ApplicationOpen entryTime qualifier
Distance
~380 km~236 miles
Climbing
~17,400 m~57,000 ft
Days
6
Navigation
Self-navigatedUnmarked course
Finish rate
Often around 50%
First run
1992

The Dragon's Back is the purest expression of British mountain running: you're given a map, a set of checkpoints, and a daily cutoff, and how you get between them is your problem. Day one crosses Snowdonia including the Snowdon massif and the Glyderau, which is scrambling terrain, in weather that is frequently horizontal. The later days ease in technicality and increase in length.

The navigation is not a formality. Runners lose hours to poor route choice, and in Welsh cloud the difference between a competent navigator and a confident one becomes very clear very quickly.

How to get in

Your realistic odds Entry is achievable if you're organised. Finishing is the hard part, with finish rates often around 50 percent, and the reason is almost always day one: Snowdonia in bad weather removes a large fraction of the field before the race has really started.

Questions runners actually ask

Is the Dragon's Back course marked?

No. It is entirely self-navigated between checkpoints, which is the defining feature of the race and the reason navigation skill matters more than raw speed.

How many people finish?

Often around half the starters. Day one across Snowdonia is the biggest single filter.

Go to the source

Entry rules, dates, standards, fees, and odds change every single year, and the interesting races change them the most. Use this guide to build the plan; use the official site to confirm the details before you book anything.

If this is your kind of thing

Need the races in between? The hard part of a bucket list year is everything else on the calendar: the qualifier, the tune-up, the long run with a bib on.

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