50K ultra runs in South Wales
Find 50k ultra runs in South 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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- Sun 21 Dec
- £18-£33
A Christmas Carol Bobble Hat Run | Wales
Come and join in at the Christmas Carol Bobble Hat Run in the picturesque Dare Valley in Wales! At this event you can earn yourself a bobble hat as well as one of the incredible themed medals!
- Families
- Beginner-friendly
- Event village
- Park
- All ages
- Road run
- 5K run
- 10K run
- Half marathon
- Marathon
- + 3 more races
- Sat 24 Jan 2026
- £22-£35
Spice Up Your Run | Wales | 50K
If you're looking to spice up your run or you need some running like you've never needed running before, then this is the event for you! Come and celebrate all things Spice Girls!
- Enter online
- Age 20 & over
- 50 km trail running
- Sun 1 Mar 2026
- £22-£35
St Davids Day Dragon Run | 50K
Come and get involved in the second St David's Day 50K Dragon Run in the beautiful Dare Valley Country Park in, of course, Wales!
- Enter online
- Traffic free
- Age 20 & over
- 50 km trail running
- Sun 15 Mar 2026
- £24-£38
The Dashing Dog Charity Run | Wales | 50K
Come and join the Dashing Dog Charity run in the picturesque Dare Valley Country Park. Not only is the scenery beautiful but you will earn one of these awesome medals for your 50K!
- Enter online
- Flat
- Traffic free
- Age 20 & over
- 50 km road running
- Sun 26 Apr 2026
- £22-£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!
- Enter online
- Traffic free
- Age 20 & over
- 50 km trail running
- Sat 30 May 2026
- £22-£35
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?
- Enter online
- Flat
- Traffic free
- Age 20 & over
- 50 km road running
- Sat 25 Jul 2026
- £22-£35
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?!
- Enter online
- Traffic free
- Age 20 & over
- 50 km road running