Event Overview


The Bloodwise 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.

Each year, it welcomes over 7,000 participants of all ages and abilities to swim, bike and run around the spectacular route. 

Now in its 15th year, the second largest triathlon in the UK is known by many in the industry as the season opener and is a firmly established must-do event for any budding triathlete. The only triathlon on the planet to take place at a World Heritage Site.


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 Bloodwise 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 Blenheim Race Information carefully, prior to the event weekend. It contains all the information you need, to make sure you thoroughly enjoy your weekend and have a safe race. Please also read the BTF Competition Rules below and make sure you know which wave you are in and what time it is.



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.



Your wave time will be emailed out to you up to 2 weeks prior to the event. You can also see your wave time here

Please ensure you take note of your wave start time listed above and arrive at least 90 minutes beforehand. This will allow you sufficient time to rack your bike in transition and to make your way to the swim start for your swim safety briefing. Please note you need to be at the swim start assembly at least 20 minutes before your start time.


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