Slateman Triathlon & Duathlon
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Event overview
Slateman Triathlon & Duathlon 2026 is a multi-sport race in Llanberis, Eryri (Snowdonia), on 14 June 2026. The event includes both triathlon and duathlon formats and is organised by Always Aim High Events. Race operations are bilingual, with signs, registration, and commentary available in English and Welsh. The location uses mountain scenery of Eryri as the race backdrop.
Race distances
- Sprint: Swim 750 m, Bike 20.2 km, Run 5.8 km
- Standard: Swim 1,500 m, Bike 49.9 km, Run 11.7 km
- Legend (70.3): Swim 1,900 m, Bike 92.6 km, Run 23.1 km
- Ultra (140.6): Swim 2.4 miles, Bike 180 km, Run 44.5 km (Chwarel finish)
- Ultra (140.6): Swim 2.4 miles, Bike 180 km, Run 49.9 km (Mynydd finish)
- Standard Duathlon: Run 1 5.8 km, Bike 49.9 km, Run 2 11.7 km
Race services and series
Event services include an event village with music, commentary, food and shopping, family-friendly finishes, on-course marshals and pick-up vehicles, and unique finisher mementos. Timing is by chip with live online results. A linked Adventure Triathlon & Duathlon Series 2026 offers a Season Pass that guarantees entry to both Slateman and the Superfeet Sandman, includes a limited-edition hoodie, provides series results and rankings, and covers the same choice of distances. Visit the organization's website for the most recent information.
