-
Wales Marathon
The only fully closed road marathon in Wales, finishing in Tenby
-
Renegade 10K
Trails through the Yattendon Estate, past the brewery
-
Black Diamond Yr Wyddfa | Snowdon24 2026
Repeat ascents of Yr Wyddfa for 24 hours straight
-
Tenacious Ten Hour Endurance Challenge
Ten-hour lap challenge across technical Black Mountains terrain
-
Chirk 10K
Runs through Chirk, home to Chirk Castle
-
Snowdonia Trail Marathon Eryri
Beneath Yr Wyddfa, through Beddgelert and Nant Gwynant
-
Dragon Coastal Ultramarathons
100 to 30 miles along the wild Wales Coast Path
-
Gower Peninsula Ultra Challenge
Self-paced coastal ultra from Penrice Castle, Gower
-
Snowdon Race - Râs yr Wyddfa
Up and down Snowdon, Wales's highest peak
-
Rabbit Run Wales
Trail race through the private Merthyr Mawr dune estate
-
Race for Life Wrexham
Along the River Alyn through Alyn Waters park
-
-
Beacons Way Ultra
100-mile route through the Brecon Beacons National Park of Wales
-
Ultra X Wales
Multi-day ultramarathon through the Brecon Beacons of Wales
-
Off The Tarmac Pen Y Fan Challenge
Both routes summit Pen Y Fan, Wales' highest peak
Save any of these to your season in RunCalendar and hear the morning entries open. Free on iPhone, no account needed.
Every race here is published by its organiser; RunCalendar checks the date and the entry window against the organiser's own page and rebuilds this calendar every night. A confirmed date shows its day; a provisional one shows only its month. Last updated 22 October 2026.