Welcome to Tri Summer

Summer is here and we are kicking things off with Tri Summer.

Over the next six weeks, we're challenging you to complete the equivalent of a sprint, standard or middle distance triathlon - which can be broken down into lots of smaller sessions. If you’re new to triathlon or just want to take part in the challenge then click the Register to GO TRI button below. Existing GO TRIERS and British Triathlon members can also take part in the campaign by clicking the Log in to GO TRI button and use your existing GO TRI or British Triathlon member login details to login and join the challenge.

If you’re interested in taking things a step further you can buy (or renew your lapsed) membership to get some incredible benefits along with a unique Tri Summer bundle which includes a 6 week training plan and exclusive Tri Summer buff!


Tri Summer Sprint Distance: 750m swim, 20km bike, 5km run

Tri Summer Standard Distance: 1.5km swim, 40km bike, 10km run

Tri Summer Middle Distance: 1.9km swim, 90km bike, 21km run

New to triathlon?

If you want to experience GO TRI register below, or if you’re an existing GO TRIER or British Triathlon Member you can join the campaign by logging in using your normal login details.

Register with GO TRI Log in to GO TRI

Do you want to take it to the next level?

Buy or renew your British Triathlon Membership to access amazing member benefits and an exclusive bundle including a Tri Summer training plan and buff.

Buy membership Renew membership

How does it work?

Once you have signed up to the Tri Summer, you will be able to download your personal training log to help you complete your Tri Summer Challenge. Let us know how you are progressing by submitting your activities in your GO TRI dashboard and when you complete your challenge you will be able to download your certificate!

After completing your Tri Summer Challenge, we really believe you will be ready to consider your next step in swim, bike and run. Throughout September, there will be a whole host of GO TRI Active sessions, GO TRI Events and Sprint triathlons available as part of our Tri Summer Festival. Look out for more information throughout the campaign.

For more information and answers to all your Tri Summer questions, simply visit our FAQs.

Good luck, and share your journey on social media using the hashtag #trisummer to be in with a chance to win exclusive prizes!

Terms & conditions apply