Ras y Gader / Cader Idris

MAY
16
2026
A mountain race on Cader Idris of 16.9 km with 915 m of ascent, run on a partly marked route that requires navigation and experience. Entries open online with a limit on competitors and chip timing in place.
Sat 16 May 2026

Always double-check with the organizer's website! This page may contain affiliate links.

Ras y Gader / Cader Idris

Ras y Gader / Cader Idris is a mountain race based at Eldon Square, Dolgellau with registration in the Free Library. The main course covers 16.9 km / 10.5 mi and includes 915 m / 3002 ft of climb. Chip timing is used. Full kit is essential and dogs are not allowed.

The route is partially marked and organisers state that navigational skills and significant mountain running experience are required. Local knowledge is beneficial. The event has age and category arrangements: minimum age is over 18, O16 and O18 runners can use a short course with the main race, and fun runs for under 16s take place in the morning. Teams are accepted in groups of three.

Entry is online only via the designated entry system and the field is limited to 380 competitors; the entry window will open on 2026-01-01. The race is insured by the Welsh Fell Runners Association. Course records are noted as 1:21:18 for the male record (1996) and 1:33:58 for the female record (2006). Visit the organization's website for the most recent information.

Cader Idris Mountain Race
Add Event
Help us complete the calendar!
  • Distance is at least 5 km
  • Event has a website or Facebook page
Website
Optional: Please provide your e-mail address if we may contact you.
Report a change
We will only update the data if the information is also on the website.