
Competitions
Trail
2025 Black Diamond Yr Wyddfa | Snowdon 24 XTERRA Snowdonia Trail Marathon Eryri

DATE: | 12th & 13th July 2025 |
START TIME: |
12th - 10.00am |
LOCATION: | Llanberis, Gwynedd |
CONTACT: | Always Aim High Events |
WEBSITE: | https://alwaysaimhighevents.com/ |
RACE DESCRIPTION:
This event will host the prestigious XTERRA World Trail Run Championship in 2025
Official host of the 2025 Trail Run World Championship, XTERRA Snowdonia Trail Marathon Eryri will serve as the pinnacle event of the Trail Run World Series with an inclusive trail festival in Wales' outdoor capital. Crowning the Half and Full Marathon World Champions on some of the toughest trails in the region, the championship event aims to celebrate the raw beauty of trail running, and the vibrant global community set to descend on the valleys of Eryri.
More information on the XTERRA World Trail Run Championship can be found HERE
The annual XTERRA Snowdonia event hosts two races;
Black Diamond Yr Wyddfa | Snowdon 24
Starting and finishing at the foot of this iconic mountain, your challenge is to ascend and descend Yr Wyddfa as many times as possible in 24 hours.
For solo runners, this is the ultimate endurance challenge requiring great physical and mental stamina. The current record is 8 laps - can you beat it? Being UTMB-indexed, this is also a great qualifying or preparation race for UTMB Mont Blanc. The individual challenges include a 50k, 100k, and 100m mile UTMB-indexed challenge.
Snowdon 24 can also be entered as a pair or team (up to 5). Taking part in a relay format, it's a fantastic and unique way for people to come together for 24 hours as friends, colleagues or team mates and work towards a shared goal whether thats a number of ascents or just to keep going and raise money for charity. Every person in the team contributes, whether they make one ascent or ten.
More information on the XTERRA Black Diamond Snowdon 24 can be found HERE
The XTERRA Snowdonia Trail Marathon Eryri
Welcome to the XTERRA Snowdonia Trail Marathon Eryri, a stunning Trail Marathon, Ultra Marathon, Half Marathon and 10k, starting and finishing in Wales' outdoor capital, Llanberis. Entering the XTERRA Snowdonia Trail Marathon Eryri is your ticket to compete in one of the UK's most challenging trail races.
The incredible routes explore the trails, gorgeous panoramic views and tough climbs that make Eryri (Snowdonia) National Park so popular with outdoor enthusiasts. Visiting Rhyd Ddu, Beddgelert, Nant Gwynant, Pen y Pass, and Yr Wyddfa (Snowdon), there surely can't be a more striking trail marathon route in the UK!
More information on the XTERRA Snowdonia Trail Marathon Eryri can be found HERE
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