50K ultra runs in Wales
Find 50k ultra runs near me in Wales for 2025/2026 - search by date or place, display on a map or use the advanced search to find your perfect race.
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Click an event for full event details, location, route, sustainability, what's included and how to enter.
- Sat 7 Jun
- FREE-£50
- Sat 7 Jun
- FREE-£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.
- Newcomers
- Enter online
- Event village
- Rural
- Age 21 & over
- 50 km trail running
- Sat 12 Jul
- £94.99-£104.99
- Sat 12 Jul
- £94.99-£104.99
XTERRA Snowdonia Ultra Trail Marathon Eryri
The original Snowdonia Ultra Marathon. A beautiful route boasting stunning views, a hearty ascent of Yr Wyddfa (Snowdon) and a thrilling 7km descent to a heroes' welcome at the finish line!
- Chip timing
- Enter online
- Mountainous
- Age 20 & over
- 57 km trail running + 2199 m ascent
- Sat 12 - Sun 13 Jul
- £121.99-£251.99
- Sat 12 - Sun 13 Jul
- £121.99-£251.99
Black Diamond Yr Wyddfa Snowdon24
Yr Wyddfa (Snowdon) is the highest mountain in England and Wales. Your challenge is to ascend and descend as many times as possible in 24 hours - solo or as a relay team.
- Chip timing
- Enter online
- Mountainous
- Relay
- Age 18 & over
- 24 hrs trail running
- Sat 19 - Sun 20 Jul
- £139
- 7 charities
- Sat 19 - Sun 20 Jul
- £139
- 7 charities
Gower Peninsula Ultra Challenge | 2nd Half 50K | Gower East Loop
A 50km eastern loop featuring Bantam Bay, Caswell Bay, Mumbles Head, the ‘Mumbles’ sand and mud, Clyne Wood, Gowerton and the Gower Way - to return for the finish line celebration and medal!
- Chip timing
- Enter online
- GPS tracking
- Undulating
- Age 16 & over
- 50 km multi terrain running + 1000 m ascent
- Sat 19 Jul
- £139
- 7 charities
- Sat 19 Jul
- £139
- 7 charities
Gower Peninsula Ultra Challenge | 1st Half 50K | Gower West Loop
Set out from Penrice Castle on a perfect 'half' challenge featuring Oxwich Bay and its nature reserve, the Wales Coast Path, Rhossili for a picnic, coastal scenery, dunes and the Gower Way then medal!
- Chip timing
- Enter online
- GPS tracking
- Undulating
- Age 16 & over
- 50 km multi terrain running + 1200 m ascent
- Sun 19 Oct
- FREE-£49.50
- Sun 19 Oct
- FREE-£49.50
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.
- Newcomers
- Enter online
- GPS tracking
- Flat
- Event village
- Rural
- Age 18 & over
- 50 km trail running
- Sat 14 Jun
Black Mountains 50 & 32 Mile Ultra, Marathon & Half Marathon | 32 Mile Ultra
- 32 miles trail running + 6663 ft ascent