IronmanUnited KingdomFederation / governing body
Slateman Ultra (140.6) Triathlon 2027
Sun, 13 June 2027
Llanberis, United Kingdom
226.9 km
The most iconic multi-sport adventure race in Wales. Full Ironman (140.6) distance triathlon starting in Llanberis, the heart of Eryri (Snowdonia). Features two run options: Chwarel (quarry) finish at 44.5km or Mynydd (mountain) finish at 49.9km. Part of the Adventure Triathlon & Duathlon Series 2027.
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