11/01/2023 - Important information.
It is with great regret that we must tell you the 255 Triathlon Festival of Endurance will no longer take place in 2023. We appreciate this will be very disappointing news for you.

Firstly, let us reassure you that all competitors will receive a full refund within 7 days.

We want to provide you with a clear explanation as to why we have been forced to cancel the event. To put it simply, the number of people entering the event is nowhere near enough to make the event financially viable.

In 2021 we had 96 solo athletes and 71 teams take part. In 2022, despite having been voted South East Event of the Year, we only had 28 solo athletes, with the number of relay teams increasing only slightly. Despite introducing additional race options and offering significant early-bird discounts, we have so far only had 10 solo entries and 9 teams for 2023. These numbers are significantly lower than we had at this time in previous years, and predict final numbers up to 50% lower than last year.

The event made a financial loss in both 2021 and 2022 which is to be expected with any new event, but in 2023 the losses are projected to be significantly higher (in the tens of thousands). The costs associated with delivering high-quality triathlon events are increasing and hiring a motor racing circuit makes them even higher.

The truth is we just don't know why numbers at the 255 Triathlon have declined so significantly. Although many events across the country, including free events such as Park Run, have also seen a decline in recent years, our other TriBourne events at Eastbourne, IronBourne and Brighton & Hove are very healthy and continue to grow. To put this into perspective, in the last 2 weeks we have seen over 350 athletes enter TriBourne events, but only one of those entries was for the 255 Triathlon.

This has been a very difficult decision for us. We are both athletes and passionate about the sport and the concept of the 255 Triathlon Festival of Endurance. Our ethos has always been to deliver high-quality events whilst always putting the athlete first, but we simply can't sustain an event with a loss of tens of thousands of pounds and no sign of long-term growth.

Once again, we are very sorry to disappoint you with this news. If you have any questions, please don't hesitate to contact us.

Yours sincerely
Mat and Dale

WIN the ultimate triathlon bundle from Zone3

Your chance to be completely kitted out with all the gear you need for the triathlon season ahead

We are excited to announce that we have a big competition for you. You have the chance to win the ultimate triathlon kit bundle courtesy of Zone3 worth over £1,000, plus one free entry for any TriBourne event. And two runners up will get a transition backpack each and a £25 voucher towards an event entry.

Simply enter your name and email address below for a chance to win. Closing date for entry is Saturday 30th April.

The lucky winner will receive the following triathlon bundle:

The competition is now closed.


About Zone3
Founded in 2007, Zone3 has organically grown to become Europe’s most trusted triathlon and outdoor swimming brand. From world championship podiums to first open water swims; from marginal gains to regaining headspace. No matter where you are in your sporting journey, Zone3 create products to enable you to achieve the feeling of being your absolute best.

Terms and conditions
Only one entry per person. Entry form to be submitted by midnight on Saturday 30th April 2022. Winner will be drawn at random after the closing date.