50K ultra runs in Wales
Find 50k ultra runs in Wales in 2026/2027 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.
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- Sat 25 Apr
- £52.50
North Wales 50K
This event gives participants the opportunity to take in a runnable, beautiful route which follows the North Walian coastline between Prestatyn and Bangor.
- 50 km trail running + 2700 ft ascent
- Sun 26 Apr
- £23-£35
The Nearly But Not Quite London Marathon | Wales | 50K
Didn't get a ballot entry into The London Marathon? Don't panic, come and experience this 50K event instead and earn a fantastic London-themed medal!
- 50 km trail running
- Sat 30 May
- £22-£34
Rocky at 50 Run | Wales | 50K
Come and celebrate 50 years since the release of the iconic Rocky film! Have you got the Eye of The Tiger, the guts to get the glory and the will to rise up to the challenge and run 50K?
- 50 km road running
- Sat 6 Jun
- £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.
- 50 km trail running + 5435 ft ascent
- Sat 11 - Sun 12 Jul
- £31.99-£319.99
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.
- 10K run
- Half marathon
- Marathon
- Ultra run 2
- Sat 18 - Sun 19 Jul
- £49-£199
Gower Peninsula Ultra Challenge
Set on the stunning Gower Peninsula, the UK’s first Area of Outstanding Natural Beauty and famous for its golden beaches, limestone cliffs, wild moors, ridges and woodlands.
- 100K ultra run 2
- Ultra run
- 50K ultra run 2
- Marathon
- Multi-terrain run
- + 1 more race
- Sat 25 Jul
- £22-£34
Ooops I Ran It Again | Wales | 50K
Who hasn't completed a race, sworn they will never run again and then booked onto another one the following day?!
- 50 km road running
- Sun 26 Jul
- FREE-£115
Ultra X Wales | 50K
Nestled in the hills of the Brecon Beacons, run or walk through wild hills on marked, rugged trails, with big views and remote landscapes in a supportive, adventure-focused trail running experience.
- 50 km multi terrain running + 2166 m ascent
- Sat 22 Aug
- £22-£34
Great British Bake Run | Wales | 50K
Who doesn't like cake?! The Great British Bake Run is back for another year with a totally unique baking competition with prizes on the day too!
- 50 km road running
- Sun 18 Oct
- £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.
- 50 km trail running + 1450 m ascent
- Sun 20 Dec
- £27-£40
The Snow Globe Gallop Bobble Hat Run - Wales | 50K
Come and join in for the Christmas Carol Bobble Hat Run in the picturesque Dare Valley in Wales! At this event you can earn yourself a running buff as well as one of the incredible themed medals!!
- 50 km trail running
- Sat 6 Jun
- £60
Pembrokeshire Coastal Races - Trail and Ultra Running Festival | 50K
- 50 km trail running