Snowman Triathlon

JUL
25
2027
Multi-discipline races in Eryri featuring a lake swim, mountain road cycling and a trail run beneath the skyline of Yr Wyddfa.
Sun 25 Jul 2027
Sprint 750 m 27.1 6.2 km Sprint 2.2 27.1 6.2 km Olympic 1500 m 69.1 8.7 km Middle distance 1900 m 95.6 21.2 km

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Snowman Triathlon & Duathlon

The Snowman Triathlon and Sprint Duathlon take place at Plas y Brenin in Eryri (Snowdonia). Each race begins beneath the skyline of Yr Wyddfa and combines an open‑water lake swim, road cycling through mountain roads, and a mountain trail run through Dyffryn Ogwen and onto the slopes of Moel Siabod. The swim takes place in Llynau Mymbyr.

Races include:

  • Sprint: Swim 750 m, Bike 27.1 km, Run 6.2 km
  • Standard: Swim 1500 m, Bike 69.1 km, Run 8.7 km
  • Legend 70.3: Swim 1900 m, Bike 95.6 km, Run 21.2 km
  • Sprint Duathlon: Run 2.2 km, Bike 27.1 km, Run 6.2 km

The event offers an event village with music, commentary, food and shopping, family finishes, on-course marshals, signage and pick-up vehicles. Chip timing and online results are provided, and finishers receive event mementos. The organiser partners with the Mountain Adventure Fund; participants may add a donation on the booking form (no minimum amount) and free places for fundraisers are available subject to a minimum sponsorship requirement.

Information about travel, accommodation, volunteering, and race reports is provided by the organiser. Signs, registration and commentary are available in both English and Welsh. Dates for the next edition are listed as To Be Confirmed. Visit the organization's website for the most recent information.

Half Marathon
Legend (70.3) Triathlon Run
9 km
Standard Triathlon Run
6 km
Sprint Triathlon Run
6 km
Sprint Duathlon Run 2
Sprint Duathlon Run 1
Standard Triathlon Swim
Standard Triathlon Bike
Sprint Triathlon Swim
Sprint Triathlon Bike
Sprint Duathlon Bike
Legend (70.3) Triathlon Swim
Legend (70.3) Triathlon Bike
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