Slateman Triathlon & Duathlon 2027

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About

Set in the vibrant village of Llanberis, at the gateway to Eryri (Snowdonia), the Slateman Triathlon & Duathlon delivers a thrilling test of endurance against a backdrop of awe-inspiring landscapes and rich industrial heritage. Renowned by 220 Triathlon Magazine as one of the world’s finest races, it’s an unforgettable multisport experience.
Now held in June, the event benefits from warmer waters, spectacular views, and an incredible festival atmosphere, making it a must-do for both seasoned and first-time athletes.

Sprint Triathlon, Standard Triathlon, Legend (70.3) Triathlon, and 2 more

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Sun, Jun 13, 2027

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Caernarfon, United Kingdom

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Where and when

Location
Caernarfon LL55 4UR, UK
Start times
Sprint TriathlonStandard TriathlonLegend (70.3) TriathlonUltra (140.6) TriathlonStandard Duathlon

Event summary

Here are the distances available for Slateman Triathlon & Duathlon 2027
Sprint Triathlon
0.75km
20.2km
5.8km
£59.99 - £99.99
Standard Triathlon
1.5km
49.9km
11.7km
£74.99 - £119.99
Legend (70.3) Triathlon
1.9km
92.6km
23.1km
£249.99
Ultra (140.6) Triathlon
2.4mi
180km
49.9km
£439.99

Route information

Sprint
Dive into the experience with our Sprint distance; a stunning swim, bike and run set against the dramatic backdrop of Eryri (Snowdonia). Perfect for newcomers or those wanting a fast and fun challenge, it’s your gateway to the Slateman adventure.
Standard
Step up to the Standard distance and embrace a classic triathlon in Wales’ most awe-inspiring surroundings. A solid swim, bike and run combo that delivers satisfying challenge and unforgettable views; a great standard-distance goal before pushing further, and the original Sandman race.
Legend (70.3)
Our Legend (70.3) distance raises the stakes: a half-iron distance swim-bike-run combo through iconic terrain around Llanberis and the Slate Quarries. Designed for athletes ready for serious endurance and remarkable landscapes, this is where challenge meets scenery.
Ultra (Iron-Distance, 140.6)
For the ultimate test, the Ultra (140.6) is an Iron-Distance triathlon with 2.4 mile swim, 180 km bike and a mighty run, including Yr Wyddfa (Snowdon). Set in the heart of Eryri, this is a bucket-list event for athletes seeking maximum adventure and epic terrain.

What's included

  • Spectacular location - at the heart of Eryri (Snowdonia)
  • On-course support
  • Drink station in transition (Water, High5 & High5 gels)
  • Fully signed & marshalled course
  • Professional timing - chip timed, live results & sms text result
  • Access to the event village - music, commentary, food vendors and shopping
  • Locally sourced slate finisher coaster
  • HIGH5 Bike bottle & socks giveaway

How to get there

Caernarfon LL55 4UR, UK
Get full directions
Please see the event travel & accommodation page for full details.

Hotels and Accommodation

Find some of the best hotel rates close to the startline with Hotel Planner.
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Event day logistics

Final Instructions will be sent out via email and published on the race website 10 days before the event. Please see the individual race webpages for specific information in the meantime.

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33 Broadwick St, London W1F 0DQ

Reg number 10083277

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