Gorseinon
Triathlon Calendar near Gorseinon 2026-2027
Monthly updates for Gorseinon
Get new running races (and updates) in your inbox every month.
Explore the top triathlons near Gorseinon for 2026-2027! We've gathered 10 exciting races in the area. Check out our detailed list below to find your next local race.
March 2027
A duathlon at Margam Country Park combining trail runs around the castle and lake with rolling road bike courses featuring short climbs and fast flat sections.
April 2027
A mixed trail and road duathlon at the National Botanic Garden of Wales with two 5 km runs and a 30 km road cycle loop through Carmarthenshire countryside.
May 2027
Sprint-distance triathlon in Llanelli with a 750 m open water swim, 26 km bike and 5 km run; includes relay entries and forms part of the Llanelli Multi-Sport Festival.
Sprint triathlon on Swansea waterfront with a 750m swim, 20km bike in three laps and a 5km run; entry from £84.99 on 23 May 2027.
July 2027
IRONMAN 70.3 Swansea in Swansea Bay features a swim from Prince of Wales Dock, a flat coastal bike and a run through the city waterfront; relay entries available.
Monthly updates for Gorseinon
Get new running races (and updates) in your inbox every month.
Swimrun on the Pembrokeshire coast with full and sprint options, solo or team entries, ENVOL endorsed, taking place on 24 July 2027.
September 2027
Sea swim in Mumbles Bay, a hilly bike around the Gower Peninsula and a fast flat seafront run; Olympic and Sprint distances from £79.
Sprint-format duathlon in Mumbles on 04 September 2027: 5k run, 32k bike, 5k run with entry from £75 and GPX course files available.
Seaside sprint triathlon on 17 September 2027 with a 750 m swim, 20 km bike and flat 5 km run along the Saundersfoot seafront.
IRONMAN Wales in Tenby, United Kingdom features a sunrise swim on North Beach, a coastal bike including the Saundersfoot climb, and a town run lined with spectators.