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Duathlons in South East

Find duathlons near me in South East 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.

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Experience a big day of run-bike-run multi sport from the famous seafront promenade and along closed roads as part of the Eastbourne Triathlon weekend.
  • Sun 8 Jun
  • Entries close soon
  • Sun 8 Jun
  • Entries close soon
Eastbourne, East Sussex, UK

Eastbourne Triathlon | Standard Duathlon

Experience a big day of run-bike-run multi sport from the famous seafront promenade and along closed roads as part of the Eastbourne Triathlon weekend.

  • Chip timing
  • Enter online
  • Undulating
  • Traffic free
  • Age 17 & over
  • 5 km road running
  • 36.6 km road cycling
  • 10 km road running
2025 European Sprint Duathlon Qualifier. Get active in the award-winning grounds and surrounding Kent countryside in Sprint Duathlon then celebrate completing your challenge in the festival village.
  • Sat 27 Sep
  • £75
  • Sat 27 Sep
  • £75
Edenbridge, Kent, UK

Hever Castle | Sprint Duathlon

2025 European Sprint Duathlon Qualifier. Get active in the award-winning grounds and surrounding Kent countryside in Sprint Duathlon then celebrate completing your challenge in the festival village.

  • Chip timing
  • Enter online
  • Age 15 & over
  • 5 km trail running
  • 20 km road cycling
  • 2.5 km trail running
Get active in the award-winning grounds and surrounding Kent countryside in a Standard Duathlon! Recruit your friends and celebrate completing your challenge in the festival village.
  • Sun 28 Sep
  • £80
  • Sun 28 Sep
  • £80
Edenbridge, Kent, UK

Hever Castle | Standard Duathlon

Get active in the award-winning grounds and surrounding Kent countryside in a Standard Duathlon! Recruit your friends and celebrate completing your challenge in the festival village.

  • Chip timing
  • Enter online
  • Age 17 & over
  • 12 km trail running
  • 40 km road cycling
  • 4.3 km trail running
Get active in the award-winning grounds and surrounding Kent countryside in a Middle Distance Duathlon! Recruit your friends and celebrate completing your challenge in the festival village.
  • Sun 28 Sep
  • £90
  • Sun 28 Sep
  • £90
Edenbridge, Kent, UK

Hever Castle | Middle Duathlon

Get active in the award-winning grounds and surrounding Kent countryside in a Middle Distance Duathlon! Recruit your friends and celebrate completing your challenge in the festival village.

  • Chip timing
  • Enter online
  • Age 18 & over
  • 10.5 km trail running
  • 90 km road cycling
  • 10.5 km trail running
Challenge yourself to a duathlon and take the opportunity to race around this unique and inspiring Olympic venue!
  • Sun 9 Nov
  • £47
  • Sun 9 Nov
  • £47
Windsor, Buckinghamshire, UK

Dorney Super Sprint Distance Duathlon

Challenge yourself to a duathlon and take the opportunity to race around this unique and inspiring Olympic venue!

  • Enter online
  • Flat
  • PB
  • Age 15 & over
  • 2.5 km road running
  • 10 km road cycling
  • 2.5 km road running
Challenge yourself to a duathlon and take the opportunity to race around this unique and inspiring Olympic venue!
  • Sun 9 Nov
  • £58-£75
  • Sun 9 Nov
  • £58-£75
Windsor, Buckinghamshire, UK

Dorney Sprint Distance Duathlon

Challenge yourself to a duathlon and take the opportunity to race around this unique and inspiring Olympic venue!

  • Enter online
  • Flat
  • PB
  • Age 15 & over
  • 5 km road running
  • 19 km road cycling
  • 2.5 km road running
Challenge yourself to a duathlon and take the opportunity to race around this unique and inspiring Olympic venue!
  • Sun 9 Nov
  • £68-£88
  • Sun 9 Nov
  • £68-£88
Windsor, Buckinghamshire, UK

Dorney Standard Distance Duathlon

Challenge yourself to a duathlon and take the opportunity to race around this unique and inspiring Olympic venue!

  • Enter online
  • Flat
  • PB
  • Age 17 & over
  • 10 km road running
  • 38 km road cycling
  • 5 km road running
  • Sat 7 Jun
Woodstock, Oxfordshire, UK

Blenheim Palace Triathlon | Full Duathlon | Saturday

  • 10 km road running
  • 44 km road cycling
  • 5 km road running
  • Sat 7 Jun
Woodstock, Oxfordshire, UK

Blenheim Palace Triathlon | Half Duathlon | Saturday

  • 5 km road running
  • 22 km road cycling
  • 5 km road running
  • Sat 4 Oct
Windsor, Buckinghamshire, UK

Dorney Duathlon - October | Super Sprint Distance

  • 2.5 km road running
  • 10 km road cycling
  • 2.5 km road running
  • Sat 4 Oct
Windsor, Buckinghamshire, UK

Dorney Duathlon - October | Sprint Distance

  • 5 km road running
  • 19 km road cycling
  • 2.5 km road running
  • Sat 4 Oct
Windsor, Buckinghamshire, UK

Dorney Duathlon - October | Standard Distance

  • 10 km road running
  • 38 km road cycling
  • 5 km road running

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