Kids triathlons in the UK
Triathlons for children and juniors are a great way to introduce them to the sport. Courses are usually short and held on closed roads to be safe and accessible for kids. We've made it super-simple to find events by age - but don't forget, it's usually the child's age on 31 December of the year of the event! Select your location for kids triathlons in your area or scroll down to see events coming up.
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Kids triathlons in 2025
Featured events are listed below - select your region to see all events.


- Mon 5 May
- £22-£59
Tavistock Triathlon
Tavistock Triathlon is for all ages and abilities using the amazing Olympic legacy 50m pool at Mount Kelly with quiet rolling roads for the bike and the disused railway line for the run. What a venue!
- Olympic triathlon
- Sprint triathlon
- Novice triathlon
- Kids triathlon 5

- Sun 15 Jun
- £25-£99
Plymouth Triathlon & Plymouth Swim
Previously known as Mount Edgcumbe Triathlon, triathletes and swimmers of all abilities can experience a truly exceptional venue, finishers medal, t-shirt and memorable day out at a fantastic event.
- Kids triathlon 3
- Sprint triathlon
- Olympic triathlon
- Half Ironman
- Sea swim 3

- Sat 28 Jun
- £18-£29
ATW Childrens Triathlon Mallory Park
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.
- Kids triathlon 5

- Sun 29 Jun
- £30-£79
English Riviera Triathlon
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.
- Sprint triathlon
- Olympic triathlon
- Super sprint triathlon
- Kids triathlon 2

- Sat 12 - Sun 13 Jul
- £20-£95
Ripon Triathlon Festival
A family-friendly event in partnership with the Brownlee Foundation, for triathletes of all skill levels including a Sprint, Standard, Middle distance tri, Swims, Aquabike, Relay and Juniors.
- Lake swim 4
- Sprint triathlon
- Sprint aquabike
- Standard aquabike
- Olympic triathlon
- + 5 more races

- Sun 17 Aug
- £16-£28
ATW Oundle Children’s Triathlon
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.
- Kids triathlon 5

- Fri 29 - Sun 31 Aug
- £149
Junior Long Course Weekend
The Long Course Weekend challenge specifically tailored to junior athletes. Swim on Friday, cycle on Saturday and run on Sunday. Same massive crowds and the same awesome experience!
- 1.2 miles lake swimming
- 56 miles road cycling
- 10 km road running

- Sun 5 Oct
- £18-£42
Torbay Triathlon Autumn
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.
- Sprint triathlon
- Super sprint triathlon
- Kids triathlon 7
- Novice triathlon
Kids triathlons near you
Select your location for triathlons for children and juniors in your area.