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 12 exciting races in the area. Check out our detailed list below to find your next local race.
August 2026
Open water aquathlon series in 2026 with three race dates offering sprint, mini sprint and super sprint distances at Secret Bar & Kitchen.
September 2026
Seaside sprint triathlon with a 750 m sea swim, 20 km bike and a flat 5 km run to Wisemans Bridge and back, staged with large spectator crowds.
A full-distance IRONMAN in Tenby, Wales featuring an ocean swim on North Beach, a hilly bike along the Pembrokeshire coast and a town-centre run with large spectator support.
Sea swim in Mumbles Bay, a hilly bike around the Gower Peninsula and a fast seafront run; Olympic and Sprint distances, Ocean Lava qualifier on 26 September 2026.
A sprint duathlon in Mumbles on 26 September 2026 featuring a 5 km run, 32 km bike and 5 km run with entry from £75 and GPX course files available.
Monthly updates for Gorseinon
Get new running races (and updates) in your inbox every month.
October 2026
Experience an end of season sprint triathlon in Porthcawl featuring a harbour swim, a multi lap town cycle, and a flat coastal run along the Bristol Channel.
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 750 m dock swim, 20 km bike over three laps and a 5 km run, held 23 May 2027; entry from £84.99.
July 2027
Race in Swansea Bay featuring a swim from Prince of Wales Dock, a flat coastal bike route onto the Gower Peninsula, and a run through Swansea city and waterfront.
Swimrun along the Pembrokeshire Coast National Park with full and sprint routes, solo or team options; entries are currently closed.