15

Triathlons in South East

Find triathlons 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.

Search by month

Search by place

Map

Events near me

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

Take on this multi-activity event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.
  • Wed 2 Jul
  • £58
  • Wed 2 Jul
  • £58
Windsor, Buckinghamshire, UK

Midweek Dorney Super Sprint Triathlon

Take on this multi-activity event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.

  • Chip timing
  • Enter online
  • Flat
  • PB
  • Traffic free
  • Age 15 & over
  • 400 m lake swimming
  • 10 km road cycling
  • 2.5 km road running
Take on this multi-activity event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.
  • Wed 2 Jul
  • £78
  • Wed 2 Jul
  • £78
Windsor, Buckinghamshire, UK

Midweek Dorney Sprint Triathlon

Take on this multi-activity event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.

  • Chip timing
  • Enter online
  • Flat
  • PB
  • Traffic free
  • Age 15 & over
  • 750 m lake swimming
  • 20 km road cycling
  • 5 km road running
Take on this multi-activity event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.
  • Sun 13 Jul
  • £78
  • Sun 13 Jul
  • £78
Windsor, Buckinghamshire, UK

Dorney Sprint Triathlon

Take on this multi-activity event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.

  • Chip timing
  • Enter online
  • Flat
  • PB
  • Age 15 & over
  • 750 m lake swimming
  • 20 km road cycling
  • 5 km road running
Take on this multi-activity event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.
  • Sun 13 Jul
  • £99-£120
  • Sun 13 Jul
  • £99-£120
Windsor, Buckinghamshire, UK

Dorney Standard Triathlon

Take on this multi-activity event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.

  • Chip timing
  • Enter online
  • Flat
  • PB
  • Age 17 & over
  • 1500 m lake swimming
  • 40 km road cycling
  • 10 km road running
Take on this multi-activity event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.
  • Sun 13 Jul
  • £58
  • Sun 13 Jul
  • £58
Windsor, Buckinghamshire, UK

Dorney Super Sprint Triathlon

Take on this multi-activity event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.

  • Chip timing
  • Enter online
  • Flat
  • PB
  • Age 15 & over
  • 400 m lake swimming
  • 10 km road cycling
  • 2.5 km road running
Swim, bike, run your way from Windsor Castle to Brighton on this unique, non-competitive, point-to-point adventure through the North & South Downs. Fully way-marked (no navigation) and full support.
  • Sat 19 Jul
  • £265-£295
  • Sat 19 Jul
  • £265-£295
Windsor, Buckinghamshire, UK

Castle To Coast Triathlon

Swim, bike, run your way from Windsor Castle to Brighton on this unique, non-competitive, point-to-point adventure through the North & South Downs. Fully way-marked (no navigation) and full support.

  • Newcomers
  • Chip timing
  • Enter online
  • Event village
  • Rural
  • Age 18 & over
  • 1.2 miles lake swimming
  • 67 miles road cycling
  • 14 miles trail running
Award winning full and middle-distance triathlons, plus a marathon, long-distance swims, aquabike options and triathlon relays.
  • Sun 20 Jul
  • 1 charity
  • Sun 20 Jul
  • 1 charity
Eastbourne, East Sussex, UK

TriBourne Festival of Endurance | Full Distance Triathlon

Award winning full and middle-distance triathlons, plus a marathon, long-distance swims, aquabike options and triathlon relays.

  • Enter online
  • Age 18 & over
  • 2.4 miles sea swimming
  • 112 miles road cycling
  • 26.2 miles trail running
Award winning full and middle-distance triathlons, plus a marathon, long-distance swims, aquabike options and triathlon relays.
  • Sun 20 Jul
  • 1 charity
  • Sun 20 Jul
  • 1 charity
Eastbourne, East Sussex, UK

TriBourne Festival of Endurance | Middle Distance Triathlon

Award winning full and middle-distance triathlons, plus a marathon, long-distance swims, aquabike options and triathlon relays.

  • Enter online
  • Age 18 & over
  • 1.2 miles sea swimming
  • 56 miles road cycling
  • 13.1 miles trail running
Take on a multi-activity or distance event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.
  • Sun 27 Jul
  • FREE-£99
  • Sun 27 Jul
  • FREE-£99
Windsor, Buckinghamshire, UK

Dorney Triathlon | July | Sprint Triathlon

Take on a multi-activity or distance event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.

  • Chip timing
  • Enter online
  • Flat
  • PB
  • Age 15 & over
  • 750 m lake swimming
  • 20 km road cycling
  • 5 km road running
Take on a multi-activity or distance event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.
  • Sun 27 Jul
  • £99-£120
  • Sun 27 Jul
  • £99-£120
Windsor, Buckinghamshire, UK

Dorney Triathlon | July | Standard Triathlon

Take on a multi-activity or distance event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.

  • Chip timing
  • Enter online
  • Flat
  • PB
  • Age 17 & over
  • 1500 m lake swimming
  • 40 km road cycling
  • 10 km road running
Take on a multi-activity or distance event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.
  • Sun 27 Jul
  • £58
  • Sun 27 Jul
  • £58
Windsor, Buckinghamshire, UK

Dorney Triathlon | July | Super Sprint Triathlon

Take on a multi-activity or distance event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.

  • Chip timing
  • Enter online
  • Flat
  • PB
  • Age 15 & over
  • 400 m lake swimming
  • 10 km road cycling
  • 2.5 km road running
Take on this multi-activity event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.
  • Sat 9 Aug
  • £78-£99
  • Sat 9 Aug
  • £78-£99
Windsor, Buckinghamshire, UK

Dorney Sprint Triathlon

Take on this multi-activity event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.

  • Chip timing
  • Enter online
  • Flat
  • PB
  • Age 15 & over
  • 750 m lake swimming
  • 20 km road cycling
  • 5 km road running
Take on a multi-activity event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.
  • Sat 9 Aug
  • £99-£120
  • Sat 9 Aug
  • £99-£120
Windsor, Buckinghamshire, UK

Dorney Standard Triathlon

Take on a multi-activity event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.

  • Chip timing
  • Enter online
  • Flat
  • Age 17 & over
  • 1500 km lake swimming
  • 40 km road cycling
  • 10 km road running
Take on this multi-activity event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.
  • Sat 9 Aug
  • £58
  • Sat 9 Aug
  • £58
Windsor, Buckinghamshire, UK

Dorney Super Sprint Triathlon

Take on this multi-activity event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.

  • Chip timing
  • Enter online
  • Flat
  • PB
  • Age 15 & over
  • 400 m lake swimming
  • 10 km road cycling
  • 2.5 km road running
It’s big. It’s bold. It’s the UK’s one and only disability sports series for the Everyday Superhero! There are many super ways to take part in these super-fun and flexible tri challenges.
  • Sat 16 Aug
  • 1 charity
  • Sat 16 Aug
  • 1 charity
Windsor, Berkshire, UK

Superhero Tri powered by Marvel | Sprint

It’s big. It’s bold. It’s the UK’s one and only disability sports series for the Everyday Superhero! There are many super ways to take part in these super-fun and flexible tri challenges.

  • Enter online
  • Flat
  • Traffic free
  • Age 5 & over
  • 150 m lake swimming
  • 3 km road cycling
  • 1 km road running
It’s big. It’s bold. It’s the UK’s one and only disability sports series for the Everyday Superhero! There are many super ways to take part in these super-fun and flexible tri challenges.
  • Sat 16 Aug
  • 1 charity
  • Sat 16 Aug
  • 1 charity
Windsor, Berkshire, UK

Superhero Tri powered by Marvel | Half

It’s big. It’s bold. It’s the UK’s one and only disability sports series for the Everyday Superhero! There are many super ways to take part in these super-fun and flexible tri challenges.

  • Enter online
  • Flat
  • Traffic free
  • Age 9 & over
  • 400 m lake swimming
  • 10 km road cycling
  • 2.5 km road running
It’s big. It’s bold. It’s the UK’s one and only disability sports series for the Everyday Superhero! There are many super ways to take part in these super-fun and flexible tri challenges.
  • Sat 16 Aug
  • 1 charity
  • Sat 16 Aug
  • 1 charity
Windsor, Berkshire, UK

Superhero Tri powered by Marvel | Full

It’s big. It’s bold. It’s the UK’s one and only disability sports series for the Everyday Superhero! There are many super ways to take part in these super-fun and flexible tri challenges.

  • Enter online
  • Flat
  • Traffic free
  • Age 9 & over
  • 750 m lake swimming
  • 20 km road cycling
  • 5 km road running
Take on this multi-activity event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.
  • Wed 27 Aug
  • £58
  • Wed 27 Aug
  • £58
Windsor, Buckinghamshire, UK

Midweek Dorney Super Sprint Triathlon

Take on this multi-activity event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.

  • Chip timing
  • Enter online
  • Flat
  • PB
  • Traffic free
  • Age 15 & over
  • 400 m lake swimming
  • 10 km road cycling
  • 2.5 km road running
Take on this multi-activity event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.
  • Wed 27 Aug
  • £78
  • Wed 27 Aug
  • £78
Windsor, Buckinghamshire, UK

Midweek Dorney Sprint Triathlon

Take on this multi-activity event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.

  • Chip timing
  • Enter online
  • Flat
  • PB
  • Traffic free
  • Age 15 & over
  • 750 m lake swimming
  • 20 km road cycling
  • 5 km road running
Take on the fast and flat traffic-free route from Hove Lawns along the famous seafront promenade! Well established as one of the biggest events in the triathlon calendar.
  • Sun 31 Aug
  • 1 charity
  • Sun 31 Aug
  • 1 charity
Brighton, East Sussex, UK

Brighton and Hove Triathlon | Super Sprint Triathlon

Take on the fast and flat traffic-free route from Hove Lawns along the famous seafront promenade! Well established as one of the biggest events in the triathlon calendar.

  • Chip timing
  • Enter online
  • Flat
  • Traffic free
  • Age 17 & over
  • 300 m sea swimming
  • 10 km road cycling
  • 2.5 km road running
Take on the fast and flat traffic-free route from Hove Lawns along the famous seafront promenade! Well established as one of the biggest events in the triathlon calendar.
  • Sun 31 Aug
  • 1 charity
  • Sun 31 Aug
  • 1 charity
Brighton, East Sussex, UK

Brighton and Hove Triathlon | Sprint Triathlon

Take on the fast and flat traffic-free route from Hove Lawns along the famous seafront promenade! Well established as one of the biggest events in the triathlon calendar.

  • Chip timing
  • Enter online
  • Flat
  • Traffic free
  • Age 15 & over
  • 750 m sea swimming
  • 20 km road cycling
  • 5 km road running
Take on the fast and flat traffic-free route from Hove Lawns along the famous seafront promenade! Well established as one of the biggest events in the triathlon calendar.
  • Sun 31 Aug
  • 1 charity
  • Sun 31 Aug
  • 1 charity
Brighton, East Sussex, UK

Brighton and Hove Triathlon | Standard Triathlon

Take on the fast and flat traffic-free route from Hove Lawns along the famous seafront promenade! Well established as one of the biggest events in the triathlon calendar.

  • Chip timing
  • Enter online
  • Flat
  • Traffic free
  • Age 17 & over
  • 1500 m sea swimming
  • 40 km road cycling
  • 10 km road running
Book Your Spot for the Woking Super Sprint Triathlon! Join one of the most popular triathlons in the area, where athletes return year after year!
  • Sun 14 Sep
  • £49.50
  • Sun 14 Sep
  • £49.50
Woking, Surrey, UK

Woking Autumn Triathlon & Junior Aquathlon | Super Sprint Triathlon

Book Your Spot for the Woking Super Sprint Triathlon! Join one of the most popular triathlons in the area, where athletes return year after year!

  • Enter online
  • Flat
  • Age 15 & over
  • 200 m pool swimming
  • 13.6 km road cycling
  • 3.3 km trail running
  • Sat 5 Jul
Windsor, Buckinghamshire, UK

FixAddiction Summer Super Sprint Triathlon

  • 400 m lake swimming
  • 20 km road cycling
  • 5 km road running
  • Sat 5 Jul
Windsor, Buckinghamshire, UK

FixAddiction Summer Sprint Triathlon

  • 750 m pool swimming
  • 20 km road cycling
  • 5 km road running

Search by month

Search by place

Map

Search options

Back to search options