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TrailUnited KingdomWales

Cadair X 2026

17.10.2026Dol Idris (United Kingdom)
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1’1653’822 m D+ ft D+

20.9 km13 mi13 mi

At a glance

Cadair X 2026 took place on Saturday 17 October 2026 in Dol Idris (Wales, United Kingdom). One distance: 20.9 km.

The course is 20.9 km with 1’165 m D+ (56 m per km: mountain terrain). Terrain: 53% trail, 32% forest track and 15% road. Terrain data: © OpenStreetMap contributors.

The 2027 edition is expected on Saturday 16 October 2027, date to be confirmed by the organiser. On Kliva, plan your pacing and nutrition for free, then send the plan to your watch.

The route takes you through ancient woodland, past stunning glacial lakes, historic trails, and challenging mountainous terrain, including the summit of Cadair Idris.
From the organiser

1 course

  1. 20.9km13mi

    1’165 m D+3’822 ft D+

    1’113 m D-3’652 ft D-

    avg 6%

    13 mi
    No index
    GPX

Course analysis

13 mi20.9 km13 mi1’165 m D+3’822 ft D+

33effort kmⓘ20.9 km on the map · feels like 33 km13 mi on the map · feels like 33 km
D+
1’165 m3’822 ft
D−
1’113 m3’652 ft
Max alt.
879 m2’884 ft
Steepest
22%

Segments

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Elevation profile: 13 mi

23 m – 879 m75 ft – 2’884 ft

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