Slateman Triathlon & Duathlon

Slateman Triathlon & Duathlon is an iconic Welsh multi-sport event in Caernarfon, set against the scenery and industrial heritage of Eryri (Snowdonia), offering multiple race distances including long-course options.

The Slateman Triathlon & Duathlon takes place on Sunday 14th June 2026 in Caernarfon, Gwynedd. Organised by Always Aim High Events, this established adventure-style multi-sport event is known for combining challenging racing with standout Welsh scenery.

Multiple race options are available across triathlon and duathlon formats, including longer-distance choices. The event is staged in June, typically offering warmer water and a vibrant race-day atmosphere.

• Date: Sunday 14th June 2026
• Location: Caernarfon, Gwynedd
• Price range: £94.99 - £419.99
• Distances available: Sprint, Olympic, Middle Distance / 70.3, Iron Distance
• Type: Triathlon and Duathlon options