Events / Triathlon

SportPursuit Slateman10 2021

The first part of the Adventure Championships, The Slateman Triathlon is the most Iconic Adventure Triathlon in Wales. Starting in Llanberis; the heart of Snowdonia’s industrial heritage this is an unparalleled race which combines stunning scenery with epic challenges. 220 Tri Magazine has listed the Slateman run course as one of the best in the world!

Due to Covid-19 we weren't able to celebrate our 10th Anniversary in 2020 so we will be doing so in 2021! It is sure to be the biggest and best Slateman yet. Now being staged in June, the warmer water temperatures, additional events over the weekend and a party atmosphere all surrounded by stunning scenery will make this an event not to be missed from any athletes calendar.


12 Jun - 13 Jun 2021



Choose your distance


SportPursuit Slateman10 2021


12 Jun 2021

Swim: 750 Metres

Bike: 20Km

Run: 5.8Km

Find out more Slateman 2021 Triathlon Sprint
Slateman Swim

SportPursuit Slateman10 2021


13 Jun 2021

Swim: 1500m

Bike: 49.6km

Run: 11.9km

Find out more Slateman 2021 Triathlon Standard
Slateman 2016 full bike 0183

SportPursuit Slateman10 2021


12 Jun - 13 Jun 2021

Swim: Day 1:750m / Day 2:1500m

Bike: Day 1:20km / Day 2:49.6km

Run: Day 1:5.8km / Day 2:11.5km

Find out more Slateman 2021 Triathlon Savage
Slateman run

SportPursuit Slateman10 2021


13 Jun 2021

Swim: 1,900 Metres

Bike: 92.6Km

Run: 23.1Km

Find out more Slateman 2021 Triathlon Legend

What's Included

Event village

Lively Event Village

Music, commentary, shopping, food and chill out zones.

Slateman family

Family Friendly Vibes

Family finishes and plenty to see and do.

Slateman transition

On Course Support

Brilliant marshals, signage and pick up vehicles

IMG 2450

Unique Finisher Momentos

Collect the first part of our famous Adventure Championships 'jig-saw'

Drone Swim

Spectacular Scenery

Snowdonia's awe-inspiring scenery is the backdrop to your race

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Professional Timing

Chip timing, live tracker and online results

Promo banner

I am a 14 time Ironman. Wow, wow, wow you guys blew me away! I am converted. Your event was so well organised, the course fantastic, marshals so, so friendly and the attitude of everyone involved so positive and co-operative. Just what us nutters want from events like this.

2019 Participant

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