Marathons in Wales
Find marathons near me in Wales for 2025/2026 - filter by date or location, display on a map or use the advanced search to find your perfect race.
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- Sat 20 Sep
- £22-£35
Fraggle Run | Wales | Marathon
Welcome to a 7-hour timed running event where you can run a marathon at your own pace on a looped route, with fuel stations each lap, and a medal and goody bag at the finish.
- Enter online
- Traffic free
- Age 18 & over
- 26.2 miles trail running
- Sat 18 Oct
- £22-£35
Scare Bear Run - Wales | Marathon
Come and join Saturn Too for our spooky Scare Bear Run!
- Enter online
- Age 18 & over
- 26.2 miles road running
- Sat 22 Nov
- £22-£35
Smurf Run - Wales | Marathon
Come and join this Smurf Run at the picturesque Dare Valley in Wales! Who doesn't love those little blue characters and therefore a medal reflecting how adorable they are!
- Enter online
- Age 18 & over
- 26.2 miles trail running + 0 ft ascent
- Sun 7 Dec
- £41.50
Sea 2 Summit | Offa's Dyke Full Marathon
The only way is up with this race along the Offas Dyke footpath. The scenery and terrain become more and more beautiful, and challenging as you go!
- Chip timing
- Enter online
- Age 18 & over
- 26.2 miles trail running
- Sun 21 Dec
- £27-£40
A Christmas Carol Bobble Hat Run - Wales | Marathon
Come and join in 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!!
- Enter online
- Age 18 & over
- 26.2 miles trail running
- Sat 24 Jan 2026
- £33-£35
Spice Up Your Run - Wales | Marathon
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!
- Enter online
- Age 18 & over
- 26.2 miles trail running + 2028 ft ascent
- Sun 1 Mar 2026
- £22-£35
St Davids Day Dragon Run | Marathon
Come and get involved in the second St David's Day Dragon Run in the beautiful Dare Valley Country Park in, of course, Wales!
- Enter online
- Age 18 & over
- 26.2 miles trail running
- Sun 26 Apr 2026
- £22-£35
The Nearly But Not Quite London Marathon - Wales | Marathon
Didn't get a ballot entry into The London Marathon 2026? Don't panic, come and run with Saturn Running instead!
- Enter online
- Age 18 & over
- 26.2 miles trail running + 0 ft ascent
- Sun 12 Oct
Amica Newport Marathon
- 26.2 miles road running + 866 ft ascent
- Sat 8 Nov
EnduranceLife - Gower | Marathon
- 27.4 miles trail running + 3425 ft ascent
- Sat 29 Nov
Machen Trail Races: Half Marathon and Marathon | Marathon
- 26 miles trail running + 4760 ft ascent
- Sat 13 Dec
Celtic Trail Races | Marathon
- 26 miles trail running + 3050 ft ascent
- Sun 8 Mar 2026
Great Welsh Marathon Events | Full Marathon
- 26.2 miles road running + 363 ft ascent
- Sat 14 Mar 2026
Brechfa Trail Races: Half Marathon & Marathon | Marathon
- 26 miles trail running
- Sat 9 May 2026
Radyr Trail Races: Half Marathon and Marathon | Marathon
- 26.2 miles trail running