Trail ultramarathons in Wales
Find trail ultramarathons 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 Black Beacon Mountain Races, SheUltra™ and Gower Peninsula Ultra Challenge.
Narrow your search to Powys, Monmouthshire and Swansea.
7 listed events · 5 with upcoming dates
Upcoming ultramarathons
5 matching events, earliest date first. Entry availability is shown separately.
Black Beacon Mountain Races
WALHay-on-Wye / Pontneddfechan, Powys
Four mountain trail distances in the Bannau Brycheiniog area.
· 50K · Status TBC
Race details, entry and past editions →SheUltra™
WALAbersoch to Pwllheli, North Wales
Running event in Abersoch to Pwllheli, North Wales.
· 50K · Status TBC
Race details, entry and past editions →Gower Peninsula Ultra Challenge
WALPenrice, Swansea
Gower Peninsula Ultra Challenge in Penrice.
· 100K / 50K
Race details, entry and past editions →Beacons Way Ultra 100KM
WALTalybont-on-Usk, Powys
Beacons Way Ultra 100KM in Talybont-on-Usk.
· 100K
Race details, entry and past editions →Ultra X Wales
WALAbergavenny, Monmouthshire
Ultra X Wales in Abergavenny.
· 50K
Race details, entry and past editions →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.
Sea To Summit Yr Wyddfa
WALGwynedd, Wales
Sea To Summit Yr Wyddfa — Caernarfon Castle, Gwynedd. Listed on runABC (North of England).
Next date not listed
Race guide and recorded editions →South Wales Are We There Yet?
WALSouth Wales, Wales
South Wales Are We There Yet? — Cwm Darren Park, Caerphilly, South Wales. Listed on runABC (South of England).
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 Abergavenny (1), Abersoch to Pwllheli, North Wales (1), Hay-on-Wye / Pontneddfechan (1). Use the town filter to compare locations, then check the race guide for the start venue and organiser’s travel information.
Questions about ultramarathons in Wales
Which trail ultramarathons are coming up in Wales?
Black Beacon Mountain Races is listed for 31 October 2026 (status to be confirmed). SheUltra™ is listed for 17 April 2027 (status to be confirmed). Gower Peninsula Ultra Challenge is listed for 17 July 2027. 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.