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Triathlons in UK

Find triathlons near me in UK for 2025/2026 - search by date or place, display on a map or use the advanced search to find your perfect race.

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Click an event for full event details, location, route, sustainability, what's included and how to enter.

  • Sat 10 - Sun 11 May
Morpeth, Northumberland, UK

TRAILDOG MultiSport

  • CaniCross 2
  • Super sprint duathlon 2
  • Novice triathlon 2
  • Sprint aquathlon 2
  • Sat 10 May
Swansea, West Glamorgan, UK

Mumbles Triathlon

  • Olympic triathlon
  • Half Ironman 2
  • Sprint triathlon
  • Sat 10 May
York, North Yorkshire, UK

Wakefield Junior Duathlon

  • Kids duathlon 5
  • Sun 11 May
Cheltenham, Gloucestershire, UK

Morans Junior Aquathlon & Triathlon

  • Kids triathlon 5
  • Kids aquathlon 5
  • Sun 11 May
Pinner, UK

The Hatch End – Harrow Triathlon

  • Kids triathlon 5
  • Novice triathlon
  • Super sprint triathlon
  • Sun 11 May
London, UK

Crystal Palace Triathlon

  • Kids triathlon 6
  • Super sprint triathlon
  • Relay triathlon
  • Sprint triathlon
  • Novice triathlon
  • Sun 11 May
Nantwich, Cheshire, UK

Cheshire Triathlon

  • Novice triathlon 2
  • Super sprint triathlon
  • Sprint triathlon
  • Sun 11 May
Ringwood, Hampshire, UK

The Huntsman Triathlon

  • Middle aquabike
  • Sprint duathlon
  • Sprint triathlon
  • Olympic triathlon
  • Half Ironman
  • Sun 11 May
Tiverton, Devon, UK

Exe Valley Triathlon

  • Novice triathlon
  • Sprint triathlon
  • Sun 11 May
East Grinstead, West Sussex, UK

The East Grinstead Triathlon

  • Novice triathlon
  • Sprint triathlon
  • Sprint aquabike
  • Sun 11 May
Llanelli, Dyfed, UK

AGILIS Llanelli Sprint Triathlon

  • 750 m pool swimming
  • 22 km road cycling
  • 5 km road running
  • Sun 11 May
Swindon, Wiltshire, UK

Royal Wootton Bassett Triathlon

  • 400 m pool swimming
  • 20 km road cycling
  • 5 km road running
  • Sun 11 May
Brigg, Lincolnshire, UK

Early Brigg Sprint Triathlon and Team Relay

  • 400 m pool swimming
  • 18 km road cycling
  • 5 km multi terrain running
  • Sun 11 May
Rossendale, Lancashire, UK

The Rossendale Triathlon

  • 400 m pool swimming
  • 21 km road cycling
  • 5 km trail running
  • Sun 11 May
Northampton, Northamptonshire, UK

Sywell Sprint Triathlon Series – May Race

  • 750 m lake swimming
  • 20 km road cycling
  • 5 km road running
  • Sun 11 May
Bungay, Suffolk, UK

Spring Waveney

  • 400 m pool swimming
  • 20 km road cycling
  • 3.2 km road running
  • Wed 14 May
Cromhall, Gloucestershire, UK

South West Maritime Triathlon Series - Race 1

  • Sprint triathlon
  • Sprint duathlon
  • Sat 17 May
Chelmsford, Essex, UK

Essex Triathlons - Hanningfield Reservoir

  • Sprint aquabike
  • Standard aquabike
  • Sprint triathlon
  • Olympic triathlon
  • Lake swim 2
  • Sun 18 May
Banbury, Oxfordshire, UK

Banbury Triathlon

  • Sprint triathlon
  • Sprint aquabike
  • Super sprint triathlon
  • Sun 18 May
Cirencester, Wiltshire, UK

51fiver Cotswold Standard Triathlon

  • Olympic triathlon
  • Standard aquabike
  • Sun 18 May
Sevenoaks, Kent, UK

7Oaks Triathlon/Aquabike/Duathlon

  • Sprint triathlon
  • Sprint aquabike
  • Sprint duathlon
  • Sun 18 May
Arundel, West Sussex, UK

Lezyne Arundel Lido Triathlon

  • Sprint triathlon
  • Olympic triathlon
  • Sprint aquabike
  • Standard aquabike
  • Sun 18 May
Stradbroke, Suffolk, UK

Stradbroke Triathlon

  • Super sprint triathlon
  • Super sprint aquabike
  • Sun 18 May
Cheddar, Somerset, UK

Tri Cheddar

  • Sprint triathlon
  • Super sprint triathlon
  • Sun 18 May
Southport, Merseyside, UK

Southport Triathlon, Duathlon & Aquathlon

  • Sprint triathlon
  • Olympic triathlon
  • Sprint duathlon
  • Standard duathlon
  • Sprint aquathlon
  • + 1 more race

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