Kids triathlons in UK in June 2025
Find kids triathlons near me in UK in June 2025 - 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.

- Sun 8 Jun
- Sun 8 Jun
Eastbourne Triathlon | Youth Super Sprint
The Youth Super Sprint Triathlon is an exciting part of the renowned Eastbourne Triathlon weekend and is for age 15-16 year olds of all abilities. Come and have a go or improve your time!
- Chip timing
- Enter online
- Undulating
- Traffic free
- Age 15-16
- 400 m pool swimming
- 9 km road cycling
- 2.4 km road running

- Sun 15 Jun
- £36
- Sun 15 Jun
- £36
Plymouth Triathlon | Tristar 3
Previously known as Mount Edgcumbe Triathlon, triathletes of all abilities can experience a truly exceptional coastal venue, finishers medal, t-shirt and fun day out at a fantastic event.
- Chip timing
- Enter online
- Age 13-14
- 300 m sea swimming
- 8 km road cycling
- 2.5 km trail running

- Sun 15 Jun
- £36
- Sun 15 Jun
- £36
Plymouth Triathlon | Tristar 2
Previously known as Mount Edgcumbe Triathlon, triathletes of all abilities can experience a truly exceptional coastal venue, finishers medal, t-shirt and fun day out at a fantastic event.
- Chip timing
- Enter online
- Age 11-12
- 200 m sea swimming
- 4 km road cycling
- 1.5 km trail running

- Sun 15 Jun
- £36
- Sun 15 Jun
- £36
Plymouth Triathlon | Tristar 1
Previously known as Mount Edgcumbe Triathlon, triathletes of all abilities can experience a truly exceptional coastal venue, finishers medal, t-shirt and fun day out at a fantastic event.
- Chip timing
- Enter online
- Age 9-10
- 200 m sea swimming
- 2 km road cycling
- 1 km trail running

- Sat 28 Jun
- £18
- Sat 28 Jun
- £18
ATW Childrens Triathlon Mallory Park | Tristart
Mallory Park Junior Triathlon: Where Dreams Take Flight! Nurturing the next generation of triathletes, providing a safe and exhilarating environment for children to discover the thrill of multisports.
- Enter online
- Traffic free
- Age 8-9
- 100 m lake swimming
- 1.5 km road cycling
- 600 m road running

- Sat 28 Jun
- £29
- Sat 28 Jun
- £29
ATW Childrens Triathlon Mallory Park | Tristar 1
Mallory Park Junior Triathlon: Where Dreams Take Flight! Nurturing the next generation of triathletes, providing a safe and exhilarating environment for children to discover the thrill of multisports.
- Enter online
- Traffic free
- Age 9-10
- 200 m lake swimming
- 4 km road cycling
- 1.2 km road running

- Sat 28 Jun
- £29
- Sat 28 Jun
- £29
ATW Childrens Triathlon Mallory Park | Tristar 2
Mallory Park Junior Triathlon: Where Dreams Take Flight! Nurturing the next generation of triathletes, providing a safe and exhilarating environment for children to discover the thrill of multisports.
- Enter online
- Traffic free
- Age 11-12
- 300 m lake swimming
- 6 km road cycling
- 1.8 km road running

- Sat 28 Jun
- £29
- Sat 28 Jun
- £29
ATW Childrens Triathlon Mallory Park | Tristar 3
Mallory Park Junior Triathlon: Where Dreams Take Flight! Nurturing the next generation of triathletes, providing a safe and exhilarating environment for children to discover the thrill of multisports.
- Enter online
- Traffic free
- Age 13-14
- 500 m lake swimming
- 8 km road cycling
- 2.4 km road running

- Sat 28 Jun
- £29
- Sat 28 Jun
- £29
ATW Childrens Triathlon Mallory Park | Youth
Mallory Park Junior Triathlon: Where Dreams Take Flight! Nurturing the next generation of triathletes, providing a safe and exhilarating environment for children to discover the thrill of multisports.
- Enter online
- Traffic free
- Age 15-16
- 500 m lake swimming
- 8 km road cycling
- 2.4 km road running

- Sun 29 Jun
- £30
- Sun 29 Jun
- £30
English Riviera Triathlon | TriStar 2
Start with a great sea swim in warm waters then on to the bikes for a closed road and flat bike leg. Finally there's a run with views of the sea. Torre Abbey Sands has excellent water quality.
- Chip timing
- Enter online
- Undulating
- Age 11-12
- 300 m sea swimming
- 4 km road cycling
- 2 km road running

- Sun 29 Jun
- £30
- Sun 29 Jun
- £30
English Riviera Triathlon | TriStar 3
Start with a great sea swim in warm waters then on to the bikes for a closed road and flat bike leg. Finally there's a run with views of the sea. Torre Abbey Sands has excellent water quality.
- Chip timing
- Enter online
- Undulating
- Age 13-14
- 300 m sea swimming
- 8 km road cycling
- 2.5 km road running

- Sun 29 Jun
- £42
- Sun 29 Jun
- £42
English Riviera Triathlon | Super Sprint
Start with a great sea swim in warm waters then on to the bikes for a closed road and flat bike leg. Finally there's a run with views of the sea. Torre Abbey Sands has excellent water quality.
- Chip timing
- Enter online
- Undulating
- Age 15 & over
- 300 m sea swimming
- 12 km road cycling
- 2.5 km road running
- Sat 7 Jun
Northumberland Festival of Sport | Junior Triathlon | Tristar Start
- 100 m lake swimming
- 1500 m road cycling
- 600 m trail running
- Sat 7 Jun
Northumberland Festival of Sport | Junior Triathlon | Tristar 1
- 200 m lake swimming
- 3 km road cycling
- 1100 m trail running
- Sat 7 Jun
Northumberland Festival of Sport | Junior Triathlon | Tristar 2
- 300 m lake swimming
- 5 km road cycling
- 1600 m trail running
- Sat 7 Jun
Northumberland Festival of Sport | Junior Triathlon | Tristar 3
- 400 m lake swimming
- 7.5 km road cycling
- 2100 m trail running
- Sat 14 Jun
Alderford Kids Fun Triathlon | GOLD
- 150 m lake swimming
- 4 km mountain biking
- 2500 m trail running
- Sat 14 Jun
Alderford Kids Fun Triathlon | GOLD Team Relay
- 150 m lake swimming
- 4 km mountain biking
- 2500 m trail running
- Sat 14 Jun
Alderford Kids Fun Triathlon | SILVER
- 100 m lake swimming
- 4 km mountain biking
- 2000 m trail running
- Sat 14 Jun
Alderford Kids Fun Triathlon | STEEL
- 50 m lake swimming
- 2 km mountain biking
- 1000 m trail running
- Sat 14 Jun
Alderford Kids Fun Triathlon | BRONZE
- 50 m lake swimming
- 3 km mountain biking
- 1500 m trail running
- Sat 14 Jun
Alderford Kids Fun Triathlon | BRONZE Team Relay
- 50 m lake swimming
- 3 km mountain biking
- 1500 m trail running
- Sat 14 Jun
Alderford Kids Fun Triathlon | ZINC Team Relay
- 25 m lake swimming
- 1 km mountain biking
- 500 m trail running
- Sat 14 Jun
Alderford Kids Fun Triathlon | ZINC
- 25 m lake swimming
- 1 km mountain biking
- 500 m trail running