Event

Slateman Triathlon & Duathlon

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Slateman Ultra runner in Dinorwig Quarry
Set in the mountain village of Llanberis, at the gateway to Eryri (Snowdonia) National Park, the Slateman Triathlon & Duathlon is one of Wales' most iconic multi-sport events. Athletes of all abilities can take on Sprint, Standard and Legend (70.3) distances, combining open-water swimming, scenic yet demanding cycling, and challenging runs through breathtaking landscapes shaped by Wales' industrial heritage. For those seeking the ultimate endurance test, the event also features the Slateman Ultra (140.6); Wales' only iron-distance adventure triathlon. This formidable race pushes competitors to their limits with a full-distance swim, bike and run, set against some of the UK's most dramatic terrain.
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Where:

Type:

Event Information

Get in touch

Location:
Llanberis Event Field, Y Ganolfan, Llanberis, Gwynedd, LL55 4UR
Telephone:
01248 723553
Email:
info@alwaysaimhighevents.com
Website:
https://alwaysaimhighevents.com/events/slateman-triathlon

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Dates

  • 14th June 2026

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Llanberis

About Slateman Triathlon & Duathlon

Set in the mountain village of Llanberis, at the gateway to Eryri (Snowdonia) National Park, the Slateman Triathlon & Duathlon is one of Wales' most iconic multi-sport events. Athletes of all abilities can take on Sprint, Standard and Legend (70.3) distances, combining open-water swimming, scenic yet demanding cycling, and challenging runs through breathtaking landscapes shaped by Wales' industrial heritage.

For those seeking the ultimate endurance test, the event also features the Slateman Ultra (140.6); Wales' only iron-distance adventure triathlon. This formidable race pushes competitors to their limits with a full-distance swim, bike and run, set against some of the UK's most dramatic terrain.

With its unique blend of natural beauty, rich history and unforgettable atmosphere, the Slateman is a must-do event for athletes looking to experience adventure racing at its very best.

Arial view of the Slateman swim

Location

53.11777, -4.11976

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NOTE: The above information is generated by third-party data provided by Slateman Triathlon & Duathlon. © Slateman Triathlon & Duathlon 2026.

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