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Triathlon Calendar Wales 2026-2027

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Monthly updates for Wales

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Explore the best triathlons in Wales for 2026-2027! Our updated list features 22 exciting races across the region. Find your next race in Wales below and join the running community at these great events!

April 2026
Apr
12
Su

Haverfordwest Sprint Triathlon

Triathlon Aquathlon
May 2026
May
16-17
Sa - Su

Mid Wales 26 ROAD

Multisport
May
24
Su

Swansea Triathlon

Triathlon
June 2026
Jun
6
Sa

Wales Triathlon

Triathlon
Jun
14
Su

Slateman Triathlon & Duathlon

Triathlon Duathlon
Jun
14
Su

Porthcawl Trident Triathlon

Triathlon
Jun
16
Tu

The Bay Aquathlon Series

Aquathlon
Jun
20
Sa

Abersoch Triathlon

Triathlon
Jun
20
Sa

Johnny Rob Run Sup Run

Multisport
Jun
28
Su

Wild Horse Brewing Co. Llandudno Triathlon & Duathlon

Triathlon
July 2026
Jul
5
Su

Pembrokeshire Coast Triathlon

Triathlon
Jul
12
Su

Ironman 70.3 Swansea

Triathlon
Jul
16
Th

The Bay Aquathlon Series

Aquathlon
August 2026
Aug
1
Sa

GV 70.tri

Triathlon
Aug
1
Sa

The Wales Swimrun

Aquathlon
Aug
9
Su

Builth Wells Aquathlon

Aquathlon
Aug
27
Th

The Bay Aquathlon Series

Aquathlon
September 2026
Sep
11
Fr

Saundersfoot Triathlon

Triathlon
Sep
13
Su

Ironman Wales

Triathlon
Sep
26
Sa

Mumbles Triathlon

Triathlon
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