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Relay triathlons in North Wales in Summer

Find relay triathlons in North Wales in Summer - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

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The most iconic multi-sport adventure race in Wales, combining a lake swim, brutal mountain climbs and a demanding run through Snowdonia’s dramatic, awe-inspiring landscape.
  • Sun 14 Jun 2026
  • £85.99-£449.99
Caernarfon, Gwynedd, UK

Slateman Triathlon & Duathlon

The most iconic multi-sport adventure race in Wales, combining a lake swim, brutal mountain climbs and a demanding run through Snowdonia’s dramatic, awe-inspiring landscape.

  • Carbon offset
  • Recycling
  • Beginner-friendly
  • Plastic bottle free
  • Dogs allowed at venue
  • Music
  • Event village
  • Rural
  • Mountains
  • Free venue entry
  • Sustainability policy
  • Public transport links
  • Age 17 & over
  • Sprint triathlon
  • Olympic triathlon
  • Half Ironman
  • Ironman
  • Standard duathlon
Race the North Wales coast in a spectacular multi-sport challenge, combining sea air, closed roads and iconic scenery in a fast, friendly triathlon and duathlon setting.
  • Sun 28 Jun 2026
  • £94.99-£141.99
Llandudno, Clwyd, UK

Wild Horse Brewing Co. Llandudno Triathlon & Duathlon

Race the North Wales coast in a spectacular multi-sport challenge, combining sea air, closed roads and iconic scenery in a fast, friendly triathlon and duathlon setting.

  • Beginner-friendly
  • Music
  • Event village
  • Age 15 & over
  • Sprint triathlon
  • Olympic triathlon
  • Standard duathlon
A legendary mountain triathlon in Snowdonia: cold-water swim, brutal climbs, tough trail run and iconic views — a true test for determined, adventure-hungry athletes.
  • Sun 26 Jul 2026
  • £115.99-£141.99
Betws-y-Coed, Clwyd, UK

Snowman Triathlon, Duathlon and Swims | Standard Triathlon

A legendary mountain triathlon in Snowdonia: cold-water swim, brutal climbs, tough trail run and iconic views — a true test for determined, adventure-hungry athletes.

  • Chip timing
  • Enter online
  • GPS tracking
  • Age 17 & over
  • 1500 m lake swimming
  • 69.3 km road cycling + 3753 ft ascent
  • 8.7 km multi terrain running + 2276 ft ascent

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