We are delighted to announce that The Bastion full iron-distance triathlon will be back, for the sixth time, on 7th July 2019.
The nurtured exclusive field continues to shows loyalty and grit and we look forward to welcoming them back along with new competitors ready to take on the challenge.
Register your Interest
Are you interested in The Bastion, but not quite ready to commit? Share your email address below to receive more information about The Bastion and preparations for a long distance event with the Castle Triathlon Series.
About The Bastion
Set within close proximity to London and triathlon’s heartland of the south-east, each leg of The Bastion has been carefully designed to offer the ultimate challenge for both newcomers to long-distance triathlon and experienced long-course hands.
The Bastion, the final stronghold of a medieval castle, features a 3.8km river and lake swim, a true toughie of a 180km bike course with 3,000m of climbing and a 42.2km run course that takes place largely off-road including running through the grounds of the beautiful Chiddingstone Castle. The event has generated rave reviews, helping grow this event into one of the truly iconic long distance triathlons in the world.
The Bastion is an exciting and busy event with lots of different courses taking place throughout the day. There will be a full brief the day before your race but it’s a good idea to familiarise yourself with the course and in particular any key junctions to ensure you take the correct route.