Merthyr Tydfil
Triathlon Calendar near Merthyr Tydfil 2026-2027
Monthly updates for Merthyr Tydfil
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Explore the top triathlons near Merthyr Tydfil for 2026-2027! We've gathered 10 exciting races in the area. Check out our detailed list below to find your next local race.
August 2026
Middle distance triathlon in Port Talbot with a relay option, junior aquathlon and a charity Mini Mile supporting the Teleri Mia Foundation.
A pool-based aquathlon in Builth Wells on 09 Aug 2026 with 200m swim 3 km run, 400m swim 5 km run, and a 400m swim 5 km relay. The event is chip timed, awards medals and raises funds for The Wales Air Ambulance.
Final race of the 2026 Bay Aquathlon Series at Swansea Bay. Open water event offering three distances from a 400m swim with 3k run up to a 750m swim with 5k run, plus relay entries and a full series option.
A muddy mini triathlon on 29 August 2026 with a 60 yard bog swim, 2 mile cross country cycle and 1 mile run. Competitors start three minutes apart and entry is £15 with age, gender and fancy dress prizes.
September 2026
Mumbles Triathlon in Swansea features a sea swim in Mumbles Bay, a hilly bike route around the Gower Peninsula and a fast seafront run with Olympic and Sprint options.
A sprint duathlon in Mumbles, Swansea on 26 September 2026 featuring a 5k run, 32k bike and 5k run with entry from £75.
October 2026
A sprint triathlon in Porthcawl on 11 October 2026 with a 750 m harbour swim, a four lap bike circuit and a two lap 5 km coastal run finishing in the harbour.
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.
May 2027
Sprint triathlon in Swansea city centre with a 750 m dock swim, 20 km flat closed road bike over three laps and a 5 km run along the waterfront.