Trail Ultra runs in North Wales
Find trail ultra runs in North Wales in 2025/2026 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.
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Select an event for photos, video, route, location, reviews, entry fees and how to enter.
- Sat 25 Apr 2026
- £52.50-£90.50
North Wales 50K & 100K
This event gives participants the opportunity to take in a runnable, beautiful route which follows the North Walian coastline between Prestatyn and Bangor.
- Beginner-friendly
- Event village
- Age 18 & over
- 50K ultra run
- 100K ultra run
- Sat 9 - Sun 10 May 2026
- £95.50-£155.50
24 Hours South | The Offa's Dyke Ultra
The finish line is unique to you: 24 hours after the mass start, the race shall stop and the Solo Runners and Teams furthest South on the National Trail, shall be declared winners.
- Beginner-friendly
- Chip timing
- Enter online
- GPS tracking
- Event village
- Rural
- Age 18 & over
- 24 hrs trail running + 8561 ft ascent
- Sat 6 Jun 2026
- £53.50
The Llangollen 50K
A truly beautiful area of North Wales! The route uses two way-marked 15-mile linear routes either side of the river, to create a spectacular, challenging excursion in and above the valley.
- Beginner-friendly
- Enter online
- Event village
- Rural
- Age 21 & over
- 50 km trail running + 5435 ft ascent
- Sat 11 - Sun 12 Jul 2026
- £31.99-£319.99
- Early bird
Snowdonia Trail Marathon Eryri Events
Your chance to take on one of the UK’s most demanding and spectacular trail races, set deep in the heart of Eryri (Snowdonia) National Park, offering a true mountain challenge.
Early bird on now
- Families
- Recycling
- Beginner-friendly
- Plastic bottle free
- Dogs allowed at venue
- Music
- Event village
- Event expo
- Mountains
- Free venue entry
- Sustainability policy
- Public transport links
- Plastic-free event
- Age 17 & over
- 10K run
- Half marathon
- Marathon
- Ultra run 2
- Sat 25 - Sun 26 Jul 2026
- £1,195
Ultra X Wales
Nestled in the hills of the Brecon Beacons, Ultra X Wales offers 6 events: 110km single stage, 110km over two stages, a 60km, 50km, 25km and 12km event.
- Beginner-friendly
- Enter online
- Sustainability policy
- Age 18 & over
- Ultra run 4
- 50K ultra run
- Multi-terrain run 2
- Sun 18 Oct 2026
- £51.50
Brenig Way 50K Trail
This regional marked footpath of 32 miles winds it's way through some beautifully remote upland scenery. Start at the town of Corwen in the Dee Valley, and follow the signage up the Dee Valley.
- Beginner-friendly
- Enter online
- GPS tracking
- Flat
- Event village
- Rural
- Age 18 & over
- 50 km trail running + 1450 m ascent