10 Triathlons in North Wales in September 2024

Find triathlons in and around North Wales in September 2024 - search by date or place, display on a map or use the advanced search to find your perfect race.

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Click an event for full event details, location, route, sustainability, what's included and how to enter.

  • Sat 7 Sep
  • £185-£560
Caernarfon, Gwynedd, UK

The Brutal Extreme Triathlon

Take on one of the World’s Toughest Triathlons…

  • Half Ironman
  • Ironman 2
  • Sat 14 - Sun 15 Sep
  • £89.99-£249.99
Llanfairpwllgwyngyll, Isle of Anglesey, UK

Superfeet Sandman Triathlon and Duathlon

The final part of the Adventure Championships and a fitting close to the most epic multi-terrain, adventure triathlon and duathlon series in the calendar.

  • Sprint triathlon 2
  • Olympic triathlon 2
  • Half Ironman
  • Sprint duathlon
  • Standard duathlon
  • Sun 29 Sep
  • £89.99-£125.99
Llandudno, Clwyd, UK

Llandudno Triathlon

Returning for a third year with the addition of a duathlon, this event explores the popular holiday town of Llandudno and the Welsh coastline, with the Irish Sea retaining its summer warmth.

  • Sprint triathlon
  • Olympic triathlon
  • Standard duathlon

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