Llanarthney
Triathlon Calendar near Llanarthney 2026-2027
Monthly updates for Llanarthney
Get new running races (and updates) in your inbox every month.
Explore the top triathlons near Llanarthney for 2026-2027! We've gathered 10 exciting races in the area. Check out our detailed list below to find your next local race.
September 2026
Mumbles Triathlon on 26 September 2026 features a sea swim in Mumbles Bay, hilly bike routes on the Gower Peninsula and a flat seafront run with Olympic and Sprint options.
Sprint duathlon in Mumbles on 26 September 2026 featuring a 5k run, 32k bike and 5k run with entry from £75.
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.
Monthly updates for Llanarthney
Get new running races (and updates) in your inbox every month.
Sprint triathlon in Swansea city centre with a 750 m swim, 20 km bike (three laps) and 5 km run on a flat, largely closed and marshalled waterfront course.
July 2027
A coastal IRONMAN 70.3 in Swansea Bay with a swim from Prince of Wales Dock, a bike route toward the Gower Peninsula and a city and waterfront run.
A swimrun in Pembrokeshire on 24 July 2027 with full and sprint coastal courses, solo or team slots, ENVOL endorsement and GPX route files.
September 2027
A seaside sprint triathlon on 11 September 2026 featuring a 750 m sea swim, 20 km bike and a flat 5 km run out to Wisemans Bridge and back.
A multisport IRONMAN event in Tenby with a sunrise swim on North Beach, a hilly bike along the Pembrokeshire coast, and a town centre run with large spectator support.