Event Overview


The Blenheim Palace Triathlon, widely regarded as UK’s most stunning triathlon, combines a world class event experience, with beautiful scenery and a family day out.

Set in the beautiful private grounds of Blenheim Palace, this is one of the country’s most iconic races and definitely one everyone should tick off their list! Each year, it welcomes over 7,000 participants of all ages and abilities to swim, bike and run around this spectacular route. 

The idyllic lake swim and closed road course makes this a great race for new comers to the sport looking to take on a challenge. And you definitely won’t be alone – 1 in 3 of our 2020 participants were first timers!

The Blenheim Palace Triathlon will take place on Saturday 11 – Sunday 12 September 2021.


There are 2 main distances available: Super Sprint and Sprint. Please see the table for a breakdown of each distance.

You can enter as an individual in any of the 3 distances or as part of a Team Relay in the Sprint distance category. For more information on this please visit the entries page of the website. 


The Weekend Warrior challenge is the ultimate test of endurance. Warriors must complete as many triathlons as possible, during racing hours, across both days of the event weekend. The winner is the Warrior who completes the most. The current record is 9 Sprint triathlons, think you can beat it? There are only 100 places are available for this challenge.


The Blenheim Palace Triathlon course consists of a fresh lake open water swim, a gently undulating bike course and a picturesque run route around the Queen’s Pool.

Participants can choose either a Super Sprint or a Sprint Distance option. 


Please make sure you read the British Triathlon Federation Competition Rules carefully. These rules are designed to make sure all athletes enjoy the event, but most importantly are safe whilst taking out on the course. Click here for the Rules.

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