Trail 10k races in Wales
Find trail 10k races in Wales. Compare 5 upcoming events by date and location. Open a race guide for the course, recorded editions and official entry information where available.
Events to explore include Anglesey Trail Half Marathon & 10K, Excalibur Winter Trail Races and RTT Afan Forest Trail 10K & 5K.
Narrow your search to Neath Port Talbot and Swansea.
8 listed events · 5 with upcoming dates
Upcoming 10k races
5 matching events, earliest date first. Entry availability is shown separately.
Anglesey Trail Half Marathon & 10K
WALAnglesey, Wales
Anglesey Trail Half Marathon & 10K — Newborough Forest, Anglesey. Listed on runABC (North of England).
· 10K
Race details, entry and past editions →Entry information ↗Excalibur Winter Trail Races
WALNorth Wales, Wales
Excalibur Winter Trail Races — Coed Moel Famau Car Park, near Mold, North Wales. Listed on runABC (North of England).
· 10K
Race details, entry and past editions →Entry information ↗RTT Afan Forest Trail 10K & 5K
WALPort Talbot, Wales
RTT Afan Forest Trail 10K & 5K — Bryn Bettws Lodge, Port Talbot. Listed on runABC (South of England).
· 10K
Race details, entry and past editions →Entry information ↗Caerphilly Trail Races: 5K & 10K
WALVan Community Centre, Caerphilly
Running event in Van Community Centre, Caerphilly.
· 10K · Status TBC
Race details, entry and past editions →Margam Wild Trail Runs
WALSouth Wales, Wales
Margam Wild Trail Runs — Margam Country Park, Margam, South Wales. Listed on runABC (Midlands).
· 10K
Race details, entry and past editions →Entry information ↗Race archive
Past races and previous editions
Looking back at a race? Browse the guides below for recorded editions. This section also includes events awaiting a new date and cancelled editions. Previous editions of races in the upcoming calendar are available through their race guides above.
Crickhowell 10K
WALGilwern, Wales
Crickhowell 10K — Brecon & Monmouthshire Canal, Gilwern. Listed on runABC (Midlands).
Next date not listed
Race guide and recorded editions →RTT Gower Trail Half Marathon, 10K & 5K
WALOxwich, Swansea
Gower Trail races — currently postponed, with a replacement date still to be announced.
Next date not listed
Race guide and recorded editions →RTT Margam Trail 10K & 5K
WALPort Talbot, Neath Port Talbot
RTT Margam Trail 10K & 5K — scenic woodland and parkland races from Margam Country Park.
Next date not listed
Race guide and recorded editions →Browse counties and areas
Choosing a race in Wales
The unfiltered upcoming calendar includes events in Anglesey (1), North Wales (1), Port Talbot (1). Use the town filter to compare locations, then check the race guide for the start venue and organiser’s travel information.
Questions about 10k races in Wales
Which trail 10k races are coming up in Wales?
Anglesey Trail Half Marathon & 10K is listed for 1 November 2026. Excalibur Winter Trail Races is listed for 1 November 2026. RTT Afan Forest Trail 10K & 5K is listed for 29 November 2026. Check the race guide and organiser’s latest information before making plans.
Where can I find race entry details for Wales?
Follow the link from the race guide to the organiser or entry provider, where one is available. Check the entry deadline, eligibility and current availability there. A listed race date does not necessarily mean entries are still open.
Why has a race moved out of the upcoming calendar?
Once its listed dates have passed, a race moves to the past-editions view unless another upcoming edition is recorded. Cancelled events also leave the upcoming list. The race guide stays available, and the event returns when a new date is added.