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

Volunteers Needed

Not only is volunteering a very enjoyable and rewarding experience but you will also earn £25 TriBourne credit for each four-hour shift.

We have two very exciting events happening in Eastbourne once again this year and another in Brighton and Hove. The multi-award-winning Eastbourne Triathlon returns on Saturday 10th and Sunday 11th June, with many of the top triathletes in the country competing to represent Team GB at the 2024 European Championships. On Sunday 9th July Eastbourne will be hosting IronBourne Long Distance Triathlon. Brighton & Hove Triathlon returns on the 10th of September and promises to be bigger and better than ever!

Events like this would not be possible without our amazing volunteers who always say that being part of our team is a very enjoyable and rewarding experience.

You will not only be rewarded with a great sense of satisfaction, but also all volunteers will be given a hot meal, hot drinks, a TriBourne t-shirt, and a TriBourne water bottle along with £25 credit for each four hour shift. The credit can use towards the entry of any TriBourne event in 2023 or 2024 and if the volunteer is not a triathlete themselves, they can even give their credit to you!

We are also recruiting for two paid positions assisting with event set up and take down, the ability to drive is an advantage, but not a necessity. The roles are for a week either side of each of our three event and the hours are likely to be long, but we do pay by the hour! If you know of anybody whio might be interested, please put them in touch with us ASAP.

If you can help, please email

Best Wishes
Juliette, Mat and Dale

Eastbourne Triathlon Festival - Saturday 10th June - 1pm to 8pm on the Western Lawns BN21 4EH - Children’s TriStar, Super-Sprint and Mixed Team Relay Triathlons. 60 volunteers needed.

Eastbourne Triathlon Festival - Sunday 11th June - 7am to 2pm on the Western Lawns BN21 4EH - Sprint and Standard Distance Triathlons. 100 volunteers needed.

IronBourne Long Distance Triathlon - Sunday 9th July - 6am to 11pm on the Western Lawns BN21 4EH - Long Distance Triathlon. 200 volunteers needed.

Brighton and Hove Triathlon - Sunday 10th September - 7am to 3pm on Hove Lawn BN3 2WJ - Children’s TriStar, Super-Sprint and Standard Distance Triathlons. 60 volunteers needed.