Trail 5K runs in Wales
Find trail 5k runs in 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 20 Dec
- £9
Santa Run Wales | 5K
Get your Santa suits, reindeer antlers, and elf ears ready — Christmas is coming, and so is the most magical 5K fun run of the year!
- Enter online
- Traffic free
- All ages
- 5 km trail running
- Sun 11 Jan 2026
- £17
Vale of Clwyd 5K
The route is exactly 5K, multi-terrain in nature, with a nice mix of minor road and trail to make for an interesting run in lovely surroundings, with fantastic views. Chip timing, prizes and medal!
- Families
- Beginner-friendly
- Chip timing
- Enter online
- Flat
- Undulating
- Event village
- Park
- Age 11 & over
- 5 km multi terrain running
- Sat 24 Jan 2026
- £22-£27
Spice Up Your Run | Wales | 5K
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 12 & over
- 5 km trail running + 249 ft ascent
- Sun 1 Mar 2026
- £22-£27
St Davids Day Dragon Run | 5K
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 12 & over
- 5 km trail running
- Sat 7 Mar 2026
- £18-£20.50
Loggerheads Trail 5K & 10K
The courses are challenging but the event environment is relaxed and friendly. Runners of all abilities can get involved and enjoy a run out on those fabulous trails.
- Families
- Beginner-friendly
- Dogs allowed at venue
- Event village
- Park
- Age 11 & over
- 5K run
- CaniCross
- 10K run
- Sun 26 Apr 2026
- £22-£27
The Nearly But Not Quite London Marathon - Wales | 5K
Didn't get a ballot entry into The London Marathon 2026? Don't panic, come and run with Saturn Running instead!
- Enter online
- Age 12 & over
- 5 km trail running + 0 ft ascent
- Sat 11 Apr 2026
RTT Gower Trail Half Marathon & 10K | 5K
- 5 km trail running