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Kids triathlons in UK

Find kids 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.

Entries closed
Ripon is unique as the only open-water junior racing in the Yorkshire series! So give your juniors the most exciting triathlon experience this year. Bike and run are traffic-free on grass surface.
  • Sat 12 Jul
  • £22.50-£25
  • Entries closed
  • Sat 12 Jul
  • £22.50-£25
  • Entries closed
Ripon, North Yorkshire, UK

Ripon Triathlon Festival | TriStar Start

Ripon is unique as the only open-water junior racing in the Yorkshire series! So give your juniors the most exciting triathlon experience this year. Bike and run are traffic-free on grass surface.

  • Enter online
  • Flat
  • Traffic free
  • Age 8-8
  • 100 m lake swimming
  • 1000 m mountain biking
  • 600 m multi terrain running
Entries closed
Ripon is unique as the only open-water junior racing in the Yorkshire series! So give your juniors the most exciting triathlon experience this year. Bike and run are traffic-free on grass surface.
  • Sat 12 Jul
  • £25-£27.50
  • Entries closed
  • Sat 12 Jul
  • £25-£27.50
  • Entries closed
Ripon, North Yorkshire, UK

Ripon Triathlon Festival | TriStar 1

Ripon is unique as the only open-water junior racing in the Yorkshire series! So give your juniors the most exciting triathlon experience this year. Bike and run are traffic-free on grass surface.

  • Enter online
  • Flat
  • Traffic free
  • Age 9-10
  • 200 m lake swimming
  • 2000 m mountain biking
  • 1200 m xc running
Entries closed
Ripon is unique as the only open-water junior racing in the Yorkshire series! So give your juniors the most exciting triathlon experience this year. Bike and run are traffic-free on grass surface.
  • Sat 12 Jul
  • £25-£27.50
  • Entries closed
  • Sat 12 Jul
  • £25-£27.50
  • Entries closed
Ripon, North Yorkshire, UK

Ripon Triathlon Festival | TriStar 2

Ripon is unique as the only open-water junior racing in the Yorkshire series! So give your juniors the most exciting triathlon experience this year. Bike and run are traffic-free on grass surface.

  • Enter online
  • Flat
  • Traffic free
  • Age 11-12
  • 300 m lake swimming
  • 4000 m mountain biking
  • 1800 m xc running
Entries closed
Ripon is unique as the only open-water junior racing in the Yorkshire series! So give your juniors the most exciting triathlon experience this year. Bike and run are traffic-free on grass surface.
  • Sat 12 Jul
  • £27.50-£30
  • Entries closed
  • Sat 12 Jul
  • £27.50-£30
  • Entries closed
Ripon, North Yorkshire, UK

Ripon Triathlon Festival | TriStar 3

Ripon is unique as the only open-water junior racing in the Yorkshire series! So give your juniors the most exciting triathlon experience this year. Bike and run are traffic-free on grass surface.

  • Enter online
  • Flat
  • Traffic free
  • Age 13-14
  • 500 m lake swimming
  • 6000 m mountain biking
  • 2400 m xc running
Entries closed
Ripon is unique as the only open-water junior racing in the Yorkshire series! So give your juniors the most exciting triathlon experience this year. Bike and run are traffic-free on grass surface.
  • Sat 12 Jul
  • £27.50-£30
  • Entries closed
  • Sat 12 Jul
  • £27.50-£30
  • Entries closed
Ripon, North Yorkshire, UK

Ripon Triathlon Festival | Youth

Ripon is unique as the only open-water junior racing in the Yorkshire series! So give your juniors the most exciting triathlon experience this year. Bike and run are traffic-free on grass surface.

  • Enter online
  • Flat
  • Traffic free
  • Age 15-16
  • 500 m lake swimming
  • 6000 m mountain biking
  • 2400 m xc running
Get the family active in the beautiful castle grounds in an event for all levels - even beginners. Bring your friends and celebrate completing your challenge in the festival village.
  • Sat 19 Jul
  • £40-£60
  • Sat 19 Jul
  • £40-£60
Grantham, Leicestershire, UK

Belvoir Castle | Triathlon 11-12 years

Get the family active in the beautiful castle grounds in an event for all levels - even beginners. Bring your friends and celebrate completing your challenge in the festival village.

  • Chip timing
  • Enter online
  • Age 11-12
  • 300 m lake swimming
  • 4 km road cycling
  • 1.6 km road running
Get the family active in the beautiful castle grounds in an event for all levels - even beginners. Bring your friends and celebrate completing your challenge in the festival village.
  • Sat 19 Jul
  • £35-£60
  • Sat 19 Jul
  • £35-£60
Grantham, Leicestershire, UK

Belvoir Castle | Triathlon 9-10 years

Get the family active in the beautiful castle grounds in an event for all levels - even beginners. Bring your friends and celebrate completing your challenge in the festival village.

  • Chip timing
  • Enter online
  • Age 9-10
  • 200 m lake swimming
  • 4.2 km road cycling
  • 1.3 km road running
Race through the beautiful castle grounds in an event for all levels - even beginners. Recruit your friends to join in too then celebrate afterwards in the festival village.
  • Sun 20 Jul
  • £50-£60
  • Sun 20 Jul
  • £50-£60
Grantham, Leicestershire, UK

Belvoir Castle | Triathlon 15-16 years

Race through the beautiful castle grounds in an event for all levels - even beginners. Recruit your friends to join in too then celebrate afterwards in the festival village.

  • Chip timing
  • Enter online
  • Age 15-16
  • 500 m lake swimming
  • 8 km road cycling
  • 2.4 km road running
Get the family active in the beautiful castle grounds in an event for all levels - even beginners. Bring your friends and celebrate completing your challenge in the festival village.
  • Sun 20 Jul
  • £45-£60
  • Sun 20 Jul
  • £45-£60
Grantham, Leicestershire, UK

Belvoir Castle | Triathlon 13-14 years

Get the family active in the beautiful castle grounds in an event for all levels - even beginners. Bring your friends and celebrate completing your challenge in the festival village.

  • Chip timing
  • Enter online
  • Age 13-14
  • 400 m lake swimming
  • 8 km road cycling
  • 2.4 km road running
ATW is the largest triathlon organiser in the UK and is bringing you the Oundle Childrens Triathlon! Ideal for all levels including very first attempts at triathlon.
  • Sun 17 Aug
  • £21
  • Sun 17 Aug
  • £21
Oundle, Northamptonshire, UK

ATW Oundle Children’s Triathlon | Tristart

ATW is the largest triathlon organiser in the UK and is bringing you the Oundle Childrens Triathlon! Ideal for all levels including very first attempts at triathlon.

  • Chip timing
  • Enter online
  • Age 8-8
  • 50 m pool swimming
  • 800 m mountain biking + 0 ft ascent
  • 600 m trail running + 3 ft ascent
ATW is the largest triathlon organiser in the UK and is bringing you the Oundle Childrens Triathlon! Ideal for all levels including very first attempts at triathlon.
  • Sun 17 Aug
  • £29
  • Sun 17 Aug
  • £29
Oundle, Northamptonshire, UK

ATW Oundle Children’s Triathlon | Tristar 1

ATW is the largest triathlon organiser in the UK and is bringing you the Oundle Childrens Triathlon! Ideal for all levels including very first attempts at triathlon.

  • Chip timing
  • Enter online
  • Age 9-10
  • 150 m pool swimming
  • 2 km mountain biking + 26 ft ascent
  • 1.2 km trail running
ATW is the largest triathlon organiser in the UK and is bringing you the Oundle Childrens Triathlon! Ideal for all levels including very first attempts at triathlon.
  • Sun 17 Aug
  • £29
  • Sun 17 Aug
  • £29
Oundle, Northamptonshire, UK

ATW Oundle Children’s Triathlon | Tristar 2

ATW is the largest triathlon organiser in the UK and is bringing you the Oundle Childrens Triathlon! Ideal for all levels including very first attempts at triathlon.

  • Chip timing
  • Enter online
  • Age 11-12
  • 200 m pool swimming
  • 4 km mountain biking
  • 1.8 km trail running
ATW is the largest triathlon organiser in the UK and is bringing you the Oundle Childrens Triathlon! Ideal for all levels including very first attempts at triathlon.
  • Sun 17 Aug
  • £29
  • Sun 17 Aug
  • £29
Oundle, Northamptonshire, UK

ATW Oundle Children’s Triathlon | Tristar 3

ATW is the largest triathlon organiser in the UK and is bringing you the Oundle Childrens Triathlon! Ideal for all levels including very first attempts at triathlon.

  • Chip timing
  • Enter online
  • Age 13-14
  • 300 m pool swimming
  • 6 km mountain biking
  • 2.4 km trail running
ATW is the largest triathlon organiser in the UK and is bringing you the Oundle Childrens Triathlon! Ideal for all levels including very first attempts at triathlon.
  • Sun 17 Aug
  • £29
  • Sun 17 Aug
  • £29
Oundle, Northamptonshire, UK

ATW Oundle Children’s Triathlon | Youth

ATW is the largest triathlon organiser in the UK and is bringing you the Oundle Childrens Triathlon! Ideal for all levels including very first attempts at triathlon.

  • Chip timing
  • Enter online
  • Age 15-16
  • 400 m pool swimming
  • 8 km mountain biking
  • 3 km trail running
Get the family active in the award-winning castle grounds in a triathlon for all abilities - even beginners then celebrate with friends and family in the festival village.
  • Sat 27 Sep
  • £35-£60
  • Sat 27 Sep
  • £35-£60
Edenbridge, Kent, UK

Hever Castle Triathlon and Multisport Festival | Triathlon 9-10 years

Get the family active in the award-winning castle grounds in a triathlon for all abilities - even beginners then celebrate with friends and family in the festival village.

  • Chip timing
  • Enter online
  • Age 9-10
  • 200 m lake swimming
  • 4.2 km road cycling
  • 1.3 km road running
Get the family active in the award-winning castle grounds in a triathlon for all abilities - even beginners then celebrate with friends and family in the festival village.
  • Sun 28 Sep
  • £45-£60
  • Sun 28 Sep
  • £45-£60
Edenbridge, Kent, UK

Hever Castle Triathlon and Multisport Festival | Triathlon 13-14 years

Get the family active in the award-winning castle grounds in a triathlon for all abilities - even beginners then celebrate with friends and family in the festival village.

  • Chip timing
  • Enter online
  • Age 13-14
  • 400 m lake swimming
  • 8.4 km road cycling
  • 2.5 km road running + 69 ft ascent
Get the family active in the award-winning castle grounds in a triathlon for all abilities - even beginners then celebrate with friends and family in the festival village.
  • Sun 28 Sep
  • £40-£60
  • Sun 28 Sep
  • £40-£60
Edenbridge, Kent, UK

Hever Castle Triathlon and Multisport Festival | Triathlon 11-12 years

Get the family active in the award-winning castle grounds in a triathlon for all abilities - even beginners then celebrate with friends and family in the festival village.

  • Chip timing
  • Enter online
  • Age 11-12
  • 300 m lake swimming
  • 4.2 km road cycling
  • 1.8 km road running
Get active in the award-winning castle grounds in a triathlon for all abilities - even beginners - then celebrate with friends, family and other athletes in the festival village.
  • Sun 28 Sep
  • £50-£60
  • Sun 28 Sep
  • £50-£60
Edenbridge, Kent, UK

Hever Castle Triathlon and Multisport Festival | Triathlon 15-16 years

Get active in the award-winning castle grounds in a triathlon for all abilities - even beginners - then celebrate with friends, family and other athletes in the festival village.

  • Chip timing
  • Enter online
  • Age 15-16
  • 500 m lake swimming
  • 8.4 km road cycling
  • 2.5 km road running + 69 ft ascent
A totally traffic free festival of triathlon offering both junior and senior distance options on the English Riviera. Pool swimming along with tarmac cycling and a parkland run, with a great medal.
  • Sun 5 Oct
  • £31
  • Sun 5 Oct
  • £31
Paignton, Devon, UK

Torbay Triathlon Autumn | Tristar 3

A totally traffic free festival of triathlon offering both junior and senior distance options on the English Riviera. Pool swimming along with tarmac cycling and a parkland run, with a great medal.

  • Chip timing
  • Enter online
  • Flat
  • Traffic free
  • Age 13-14
  • 300 m pool swimming
  • 7.5 km road cycling + 0 ft ascent
  • 2.5 km multi terrain running + 62 ft ascent
A totally traffic free festival of triathlon offering both junior and senior distance options on the English Riviera. Pool swimming along with tarmac cycling and a parkland run, with a great medal.
  • Sun 5 Oct
  • £31
  • Sun 5 Oct
  • £31
Paignton, Devon, UK

Torbay Triathlon Autumn | Tristar 2

A totally traffic free festival of triathlon offering both junior and senior distance options on the English Riviera. Pool swimming along with tarmac cycling and a parkland run, with a great medal.

  • Chip timing
  • Enter online
  • Flat
  • Traffic free
  • Age 11-12
  • 200 m pool swimming
  • 6 km road cycling
  • 1.8 km multi terrain running + 68 ft ascent
A totally traffic free festival of triathlon offering both junior and senior distance options on the English Riviera. Pool swimming along with tarmac cycling and a parkland run, with a great medal.
  • Sun 5 Oct
  • £31
  • Sun 5 Oct
  • £31
Paignton, Devon, UK

Torbay Triathlon Autumn | Novice Kids 11-14

A totally traffic free festival of triathlon offering both junior and senior distance options on the English Riviera. Pool swimming along with tarmac cycling and a parkland run, with a great medal.

  • Chip timing
  • Enter online
  • Flat
  • Traffic free
  • Age 11-14
  • 200 m pool swimming
  • 6 km road cycling
  • 1.9 km multi terrain running + 68 ft ascent
A totally traffic free festival of triathlon offering both junior and senior distance options on the English Riviera. Pool swimming along with tarmac cycling and a parkland run, with a great medal.
  • Sun 5 Oct
  • £31
  • Sun 5 Oct
  • £31
Paignton, Devon, UK

Torbay Triathlon Autumn | Tristar 1

A totally traffic free festival of triathlon offering both junior and senior distance options on the English Riviera. Pool swimming along with tarmac cycling and a parkland run, with a great medal.

  • Chip timing
  • Enter online
  • Flat
  • Traffic free
  • Age 9-10
  • 150 m pool swimming
  • 3000 m road cycling
  • 1.3 km multi terrain running
A totally traffic free festival of triathlon offering both junior and senior distance options on the English Riviera. Pool swimming along with tarmac cycling and a parkland run, with a great medal.
  • Sun 5 Oct
  • £22-£25
  • Sun 5 Oct
  • £22-£25
Paignton, Devon, UK

Torbay Triathlon Autumn | TriStar Start

A totally traffic free festival of triathlon offering both junior and senior distance options on the English Riviera. Pool swimming along with tarmac cycling and a parkland run, with a great medal.

  • Chip timing
  • Enter online
  • Flat
  • Traffic free
  • Age 8-8
  • 50 m pool swimming
  • 1500 m road cycling
  • 650 m multi terrain running
A totally traffic free festival of triathlon offering both junior and senior distance options on the English Riviera. Pool swimming along with tarmac cycling and a parkland run, with a great medal.
  • Sun 5 Oct
  • £25
  • Sun 5 Oct
  • £25
Paignton, Devon, UK

Torbay Triathlon Autumn | Novice Kids 9-10

A totally traffic free festival of triathlon offering both junior and senior distance options on the English Riviera. Pool swimming along with tarmac cycling and a parkland run, with a great medal.

  • Chip timing
  • Enter online
  • Flat
  • Traffic free
  • Age 9-10
  • 50 m pool swimming
  • 1500 m road cycling
  • 650 m multi terrain running
A totally traffic free festival of triathlon offering both junior and senior distance options on the English Riviera. Pool swimming along with tarmac cycling and a parkland run, with a great medal.
  • Sun 5 Oct
  • £23
  • Sun 5 Oct
  • £23
Paignton, Devon, UK

Torbay Triathlon Autumn | Mini Triathlon

A totally traffic free festival of triathlon offering both junior and senior distance options on the English Riviera. Pool swimming along with tarmac cycling and a parkland run, with a great medal.

  • Chip timing
  • Enter online
  • Flat
  • Traffic free
  • Age 5-7
  • 25 m pool swimming
  • 1500 m road cycling
  • 650 m multi terrain running

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