7 races in date order
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Cardiff Half Marathon
A fast capital half past Cardiff castle and the bay
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Red Warrior Challenge Multi Terrain Races
Runs through Margam Country Park's historic parkland
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The Loop Ultra
Loops through Mid Wales' rugged Cambrian Mountains
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Abergele 5K & 10K
Runs the coastal promenade between Abergele and Pensarn
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Ron Skilton Half Marathon
Runs from Llanwrtyd Wells, Britain's smallest town
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Great Welsh Marathon and Half Marathon
South Wales oldest race rolling through Carmarthenshire country
Your next race, seen from above.
Save any of these to your season in RunCalendar and hear the morning entries open. Free on iPhone, no account needed.
Get RunCalendar
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.