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Triathlons in South Wales

Find triathlons in South Wales in 2026/2027 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

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  • Sun 24 May
  • £84.99-£100
Swansea, West Glamorgan

Swansea Triathlon

  • 750 m dock swimming
  • 20 km road cycling
  • 5 km road running
  • Sat 13 Jun
  • £150-£190
Tredegar, Gwent

Titan Brecon Middle Distance Triathlon

  • Half Ironman
  • Middle aquabike
  • Sat 27 Jun
  • FREE
Caldicot, Gwent

Caldicot Kids Triathlon

  • Kids triathlon 6
  • Sat 27 Jun
  • FREE
Caldicot, Gwent

Caldicot Triathlon

  • Novice triathlon 3

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