Slateman Triathlon & Duathlon
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Slateman Triathlon & Duathlon 2026 - Llanberis
The Slateman Triathlon & Duathlon takes place in Llanberis within Eryri (Snowdonia) on 14 June 2026. The event is the organiser's first ever event and offers multiple race formats across swim, bike and run disciplines, plus a duathlon option.
Available race distances include:
- Sprint: Swim 750 metres, Bike 20.2 km, Run 5.8 km
- Standard: Swim 1500 metres, Bike 49.9 km, Run 11.7 km
- Legend 70.3: Swim 1,900 metres, Bike 92.6 km, Run 23.1 km
- Ultra Full Distance 140.6: Swim 2.4 miles, Bike 180 km, Run 44.5 km or 49.9 km finish options
- Standard Duathlon: Run 5.8 km, Bike 49.9 km, Run 11.7 km
On-site facilities and services listed for the event include a lively event village with music, commentary, shopping, food and chill-out zones; family friendly finishes; on-course marshals, signage and pick-up vehicles; and chip timing with live online results. Finishers receive mementos designed to reflect the event location and local history. The event is bilingual with signs, registration and commentary available in English and Welsh.
The Slateman also features a two-event Adventure Triathlon & Duathlon Series 2026 with the Superfeet Sandman, offering a Season Pass that provides guaranteed entry to both events, a limited-edition hoodie, and combined series results and rankings. Visit the organization's website for the most recent information.
