Choose your next event 

SEE ALL EVENTS

Welcome to UK Triathlon

  •  
  • Wide choice of events and distances to choose from
  • Open to everyone from Beginners to Club & Pro Triathletes
  • Award-winning events open to all ages
  • Easy online entry system 
  • No booking fees 

 

An Event For Everyone

 

First Timer Events

Kids Events

Long Distance Events

League • Team • Endurance

What we offer…

Award Winning Events

Proud winner of Large Event of the Year 2022, host of the World Standard Distance Qualifier 2022 & 2023 British Sprint Championships.

Events For All

Our events are open to everyone, from first timers to experienced triathletes & juniors. We welcome all abilities and levels of fitness.

Stunning Locations

Join us at our wide range of venues that take in the natural beauty of their surroundings, from countryside cycles to picturesque riverside runs.

On and Off Course Support

From training plans that help you make the best of your race, to our fantastic event crew and marshals cheering and supporting you around each course.

Electronic Chip Timing

Race day timing, with full split results, showcasing your Swim, Transition, Cycling and Running race times.

Medals and Prizes

Official finishers medal for everyone who crosses the finish line. Top three places awarded in all competitive triathlons as well as age group prizes.

Find your next event

Choose from a wide range of events to suit all ages and Experiences

FIND OUT MORE

Alex M

Alderford Triathlon - 2022

Best triathlon I’ve done. Did the Olympic distance. Well organised, water was the best open water I’ve seen, genuinely almost sweet tasting water.

Nick

Henley Triathlon - 2024

This is a favourite of mine as it was my first Tri five years ago. Really friendly but ran like clockwork.

Neil Dallywater

Ultimate Triathlon - 2023

I just wanted to say, what an event you guys put on! I really can't thank all the marshals and helpers enough for making the UK Ultimate the event the highlight of my triathlon career so far. The helpfulness and sheer enthusiasm of each and every person, who stood for hours in the hot sun handing out drinks and directing traffic really helped me to complete my first Iron distance event. I can still hear the cheers and shouts of encouragement now! If anyone deserves a medal, it's these guys. I really can't thank you all for an incredible event and I'll be back for certain! Cheers,

Mark L

Ultimate Half Triathlon - 2022

I love this event, maybe I'm biased as this is my training lake, even so it is fantastically well organised great friendly atmosphere and a course good for beginners and a PB. I've done the Full twice and the Half 3 times. I'll do it again.

Bridgette H

Henley Triathlon - 2024

This is my second Triathlon and yet again had a super race. A big thankyou to all who put so much work into running these events. I have found everyone very helpful,and last week phoned uk triathlon with a couple of questions and yet again my mind was put at rest. So don't hesitate enter Henley next year and have a great time.

Jess (on behalf of all the parents of the Berkeley Blasters).

Caldicot Kids Triathlon - 2026

I just wanted to send an email of thanks for the Caldicott Kids Triathlon. My son, Wilfred and his friends from school all entered as team Berkeley Blasters to the tin event and none of them had ever done an event or competition before. The event was so brilliantly organised, right from initial race packs that made the children really feel like they were doing a 'big event' and getting suitably excited. They were all quite nervous about going into the pool without parents but were welcomed so well at the door, they were all beaming as they came out: so proud of themselves already. They picked up their parents en route to the bike and all seemed totally engaged in 'transition time'. They were all smiling so much doing the cycle and run and the fact they saw each other at different points of the event through the arena style route was really great for them: they talked about this lots afterwards. The big finish arch with a bell to ring and smooth transition onto a stage for a medal was a touch of genius: they all felt like they had won and had been treated fairly and celebrated equally. I've never felt more proud of a group of children: they all pushed themselves and confidence was so high afterwards. Allowing parents to transition with them allowed so much support and all I could see were proud parents everywhere. I must thank you as an organisational team for putting on such a brilliant day, encouraging children into sport and celebrating every single one of them. Wilfred couldn't believe that his name was called out on the loud speaker as he crossed the line: he honestly thinks he's famous now. As a group, the children raised £1370 for Childhood Tumour's Trust, a charity close to their hearts too. Thankyou again,

Nikki R

Alderford Triathlon - 2022

Great morning. My first recent triathlon( did one 13 years ago) so was extremely nervous!! But everything was simple and straight forward. Everyone was really helpful and extremely friendly! Thank you! Now which one to tri next. 😀

Joshua

Warwickshire Triathlon - 2024

First Triathlon. Awesome beginners event, pool system was effective, transition area had plenty of space, good fast bike route and the run was a mix of trail and path! Brilliant event, helpful staff and overall a good day!

Jo

York Triathlon - 2023

Great day, great organisation, great participants, great crowds, thank you

Emma Barlow

Shropshire Triathlon - 2025

Shropshire triathlon was very well organised and welcoming for me as a first timer. Everything the participants needed was available and well explained. Lots of fun and lots of support.

Choose your next event 

ENTER NOW