10

Relay triathlons in North Wales

Find relay triathlons in North 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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Select an event for photos, video, route, location, reviews, entry fees and how to enter.

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
  • £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.

  • Sprint triathlon
  • Olympic triathlon
  • Half Ironman
  • Ironman
  • Standard duathlon
  • 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
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
  • £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.

  • Sprint triathlon
  • Olympic triathlon
  • Standard duathlon
  • Beginner-friendly
  • Music
  • Event village
  • Age 15 & over
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
  • £115.99-£141.99
Betws-y-Coed, Clwyd, UK

Snowman 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.

  • 1500 m lake swimming
  • 69.3 km road cycling + 3753 ft ascent
  • 8.7 km multi terrain running + 2276 ft ascent
  • Chip timing
  • Enter online
  • GPS tracking
  • Age 17 & over
Start with a water swim in beautiful Llyn Tegid against a mountain backdrop, then push through scenic bike and run routes on fully closed roads around Bala, North Wales.
  • Sun 6 Sep
  • £98.99-£259.99
Bala, Gwynedd, UK

Triathlon Y Bala

Start with a water swim in beautiful Llyn Tegid against a mountain backdrop, then push through scenic bike and run routes on fully closed roads around Bala, North Wales.

  • Sprint triathlon
  • Olympic triathlon
  • Half Ironman
  • Carbon offset
  • Recycling
  • Beginner-friendly
  • Plastic bottle free
  • Dogs allowed at venue
  • Music
  • Event village
  • Rural
  • Mountains
  • Free venue entry
  • Sustainability policy
  • Age 15 & over
An unforgettable adventure triathlon, The Sandman has been described as one of the most beautiful and thrilling multi-terrain races in the UK, offering a unique experience for athletes of all levels.
  • Sun 27 Sep
  • £76.99-£259.99
Llanfairpwllgwyngyll, Isle of Anglesey, UK

Superfeet Sandman Triathlon and Duathlon

An unforgettable adventure triathlon, The Sandman has been described as one of the most beautiful and thrilling multi-terrain races in the UK, offering a unique experience for athletes of all levels.

  • Sprint triathlon
  • Olympic triathlon
  • Half Ironman
  • Sprint duathlon
  • Families
  • Trees not tees
  • Recycling
  • Beginner-friendly
  • Plastic bottle free
  • Music
  • Event village
  • Event expo
  • Rural
  • Coast
  • Free venue entry
  • Sustainability policy
  • Public transport links
  • Plastic-free event
  • Age 15 & over
  • Sat 9 May
  • £250-£270
Pwllheli, Gwynedd, UK

THE ROC WALES

  • 1.5 km sea swimming
  • 100 km road cycling
  • 13 km multi terrain running + 3330 ft ascent

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