Sun 8 Jun 2025 Caernarfon, Gwynedd, UK

Slateman Triathlon & Duathlon | Delete

The Slateman Triathlon & Duathlon is the most iconic multi sport adventure race in Wales.

  • Sun 8 Jun 2025
Llanberis, Caernarfon

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09:00

Age 18 & over on 31 Dec 2025

£85.99-£95.99

  • 5.8 km road running
  • 49.9 km road cycling
  • 11.5 km road running

Event overview

Starting in Llanberis; the heart of Eryri (Snowdonia)’s industrial heritage, this is an unparalleled race which combines stunning scenery with epic challenges. 220 Tri Magazine has listed the Slateman amongst the world's best triathlons. Now staged in June, the warmer water temperatures and a party atmosphere all surrounded by stunning scenery will make this an event not to be missed from any athlete's calendar.Are you up for the trio? The Slateman is also the first part of our Adventure Series of triathlons & duathlons.

This event is part of Slateman Triathlon & Duathlon.

Event details

  • All fitness levels
  • Event village
  • Newcomers
  • Spectators

Location

  • Music

Route

  • First aid
  • Food stations
  • Hilly
  • Marshals
  • Sweeper
  • Toilets
  • Water stations
  • Wave start
  • Way markers

What's included

  • Chip timing
  • Eco medal
  • Event app

Entries

  • Age 18 & over on 31 Dec 2025
  • Entries open
  • Enter online

Other races at event

  • Sun 8 Jun 2025
  • #1 of 4
Llanberis, Caernarfon

Sprint Triathlon

09:00

Age 17 & over

£89.99-£109.99

  • 750 m lake swimming
  • 20 km road cycling
  • 5.8 km road running
  • Sun 8 Jun 2025
  • #2 of 4
Llanberis, Caernarfon

Standard Triathlon

08:00

Age 18 & over

£105.99-£125.99

  • 1500 m lake swimming
  • 49.9 km road cycling
  • 11.9 km road running
  • Sun 8 Jun 2025
  • #3 of 4
Llanberis, Caernarfon

Legend (70.3) Triathlon

07:00

Age 18 & over

£224.99-£249.99

  • 1900 m lake swimming
  • 92.6 km road cycling
  • 23.1 km road running