4 October 2026Half marathon
Cardiff Half Marathon
A guide to the Cardiff Half Marathon - the October half from Castle Street, how the ballot works, what a place costs, and when entries open for the next one.
Races in Wales
A selection of the best races in Wales, constantly growing.
Rounding up the biggest and best races in Wales, with race dates, entry windows, prices, route information and more. Wherever possible, there's also a first hand review of the race itself.
Coming up
Races with a date announced, soonest first.
18 April 2027Marathon
Newport Marathon
A guide to the ABP Newport Marathon Festival - the flat April marathon along the Usk, when it runs, what entry costs and how to get in before it sells out.
16 May 202710K
Barry Island 10K
A guide to the Barry Island 10K: the May seafront race from Whitmore Bay, what it costs and when entries close, plus the Romilly Park climb, Harbour Road parking and traffic from two years running it.
27 June 202710K
Porthcawl 10k
A course guide to the Brecon Carreg Porthcawl 10K: closed roads, a seafront finish and a second-half drag that stops it being a PB race. Next edition Sunday 27 June 2027.
Dates not yet announced
Written up and waiting on the organiser to confirm the next one.
Usually early September10 km
Cardiff 10k
A guide to the Cardiff 10k - around 9 m of climbing from the Civic Centre, making it the flattest 10k course in Wales, plus when it runs and what it costs.