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Slateman Ultra (140.6) Triathlon 2027

Key facts

Date: Sunday, 13 June 2027
Location: Llanberis, United Kingdom · Wales
Sport: Ironman · full ironman
Longest distance: 226.9 km
Entry fee: €456–562
Registration closes: 11 Jun 2027 (2 days before the event)

About this event

The most iconic multi-sport adventure race in Wales. Full Ironman (140.6) distance triathlon starting in Llanberis, the heart of Eryri (Snowdonia). Features two run options: Chwarel (quarry) finish at 44.5km or Mynydd (mountain) finish at 49.9km. Part of the Adventure Triathlon & Duathlon Series 2027.

Slateman Ultra (140.6) Triathlon 2027 is a ironman (full ironman) event in Llanberis, United Kingdom, held on Sunday, 13 June 2027 — a weekend event in summer. It is in the Wales region of United Kingdom. The longest distance is 226.9 km. Entry starts at €456 (higher-priced, over €75), and registration closes 2 days before the event.

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Frequently asked questions

When is Slateman Ultra (140.6) Triathlon 2027?

Slateman Ultra (140.6) Triathlon 2027 takes place on Sunday, 13 June 2027.

Where does Slateman Ultra (140.6) Triathlon 2027 take place?

Slateman Ultra (140.6) Triathlon 2027 takes place in Llanberis, United Kingdom (Wales region).

How long is Slateman Ultra (140.6) Triathlon 2027?

The longest distance listed is 226.9 km.

How much does Slateman Ultra (140.6) Triathlon 2027 cost?

Entry costs €456–562, depending on the option.

How do I register for Slateman Ultra (140.6) Triathlon 2027?

We do not take entries ourselves: use the register button on this page to open the registration page for this event. Registration closes 2 days before the event.

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