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Ras y Mast

Name: Ras y Mast
Start: 2026-11-29
End: 2026-11-29
Location: Llanybydder

Llanybydder, United Kingdom • 29 Nov 2026

Ras y Mast

Ras y Mast is a fell race covering 10.4 km (6.5 miles) with approximately 381 m (1,250 ft) of ascent. The course is partially waymarked and follows upland terrain near Llanybydder. The event is based at Blaenwern Holiday Centre, Llanybydder, NP7 9LP (GR 563421 on OS sheet 146).

The minimum age for the main race is over 16. There are also junior races. Team prizes are contested by teams of three in the following categories: Male under 40, Male 40-plus, and Female. Safety information is listed as BS Partially marked. Entry is listed at £8 and is accepted online and on the day. The event is insured by WFRA. Visit the organization's website for the most recent information.

United Kingdom Wales Llanybydder

Race information

Registration

10 km

Ras Y Mast

Visit the organization's website for the most recent information.

Trail runs nearby

Saturday May 9

Preseli Beast

A set of off-road fell races in the Preseli hills featuring a 10.8-mile Bach and an approx 24-mile Beast with substantial ascent, marked and partly supported courses, category prizes, and WFRA safety and kit requirements.

Friday May 22

Three Parks Challenge 10K

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A multi terrain 10 km run on 22 May 2026 through Parc Dinefwr, Parc Penlan and Parc le Conquet with a 90 minute cut off; entry includes cheese and wine for finishers and an optional event T shirt.

Sunday May 24

Sarn Helen Hill Race

Lampeter

26 km

A 26.4 km hill race from Lampeter Rugby Club with 915 m of ascent and a partially marked course. A relay team option splits the route into three legs and a £500 prize is available for anyone who breaks the course record.

Saturday May 30

Fell-y-Cwm

Cilycwm

6 km

A 6.4 km fell race at Calon y Cwm camping, Cilycwm, with 244 m ascent on a partially marked route through fields, wet forest, tracks and rocky ground. Entry on the day £7; minimum age over 16.