Preseli Beast

Maenclochog, United Kingdom • 9 May 2026

Preseli Beast

The Preseli Beast comprises a series of three off-road fell races set in the Preseli hills, North Pembrokeshire, West Wales. Routes share the same start and finish and include the Preselis' highest point, Foel Cwmcerwyn. Course terrain includes trail, fell, wooded paths, boggy sections and steep climbs. The 24-mile race includes water and feed stations at roughly five-mile intervals.

Distances:

  • Beast Bach: 10.8 miles, 1,700 ft ascent
  • Preseli Beast: approx 24 miles, 4,600 ft ascent
  • UltraBeasT: new course under construction

The Beast Bach is fully marked and has one water/aid station at about five miles. The Preseli Beast route passes through the steep-sided wooded Gwaun valley, offers views from Carn Ingli over Newport Bay, and includes a feature referred to as the Beast's Lair.

Prizes are awarded by category with at least a prize for the winner in each listed class, including male/open and female age groups 18-39, 40-49, 50-59, 60-69, and 70+.

WFRA safety requirements apply. Competitors must have the skills and experience to complete the chosen race and comply with the Race Organiser's instructions. Mandatory kit for the Preseli Beast and UltraBeasT includes full waterproof top and bottoms, a map covering the route, compass, whistle, water container, gloves, and a hat or buff. Kit requirements for the Beast Bach may be reduced depending on conditions. Visit the organization's website for the most recent information.

Race information

52 km
Preseli Ultrabeast
40 km
Preseli Beast
18 km
Preseli Beast Bach
Visit the organization's website for the most recent information.
Trail runs nearby

A Trail 10k at Llys y Fran Lake with varied terrain, lakeside and woodland sections, chip timing and a finisher's medal. The race is the second event in the 2026 RTT Series and includes marked routes and water stations.

Carn Ingli Killer is a 5.54 km fell race with 315 m climb on a partially marked course requiring navigational skills and experience; registration is opposite Long Street car park and entry is £3 on the night.

A new 2026 trail running event along the Pembrokeshire Coast from Freshwater East to Saundersfoot, offering 25k and 14k routes with GPX files and a payment plan for entries.

An approximately 8 km fell race in North Pembrokeshire with about 320 m of climb and a partially marked course. Junior races run in several age categories and entry fees are modest.

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