Triathlon Events in United Kingdom 🇬🇧 2026–2027 — Calendar

7 Upcoming triathlon events listed in United Kingdom from October 2026 to April 2028 with the most events in England (4) and Wales (2), including 2027 IRONMAN 70.3 Bolton and Ironman 70.3 Swansea.

16 Athletes targeting these events on Intervals.icu

Kernowman

Marazion, UK Other Open Water Swim Ride Run

2027 IRONMAN 70.3 Bolton

Bolton, UK Open Water Swim Ride Run

Cotswolds 113

Spratsgate Ln, Cirencester GL7 6DF, UK Open Water Swim Ride Run

The Lakesman Full

Lakesman Full Distance Triathlon

Keswick, UK Open Water Swim Ride Run

Long Course Wales 2027

Tenby Harbour, Tenby, UK Open Water Swim Ride Run

Ironman 70.3 Swansea

Ironman 70.3 Swansea

Swansea, UK Open Water Swim Ride Run

2027 IRONMAN Wales

Tenby North Beach, United Kingdom Swim Ride Run