Jonny Brownlee Announces Retirement and Enduro

Jonny Brownlee Announces Retirement — And The Next Chapter With Supertri As The "Enduro" Is Launched

Olympic champion to step away from competition at the Supertri Pro Series Final in Jersey — before launching Enduro, a new Supertri series inspired by his record-breaking Weekend Warrior at Blenheim Palace, which he will now take on at events around the world.

JERSEY, Channel Islands — 4 September 2026 — Three-time Olympic medallist Jonny Brownlee, one of the most decorated triathletes in the history of the sport, has announced his retirement from professional triathlon. Brownlee made the announcement today at the Supertri Pro Series Final in Jersey, where an ongoing injury means he is unable to take to the start line one final time.

It is not the finish he had hoped for. Brownlee had wanted one last race on the Supertri stage, and choosing to stop rather than push through injury is, he says, the right call even if it is not the one he would have written. He leaves the sport as one of its defining figures of the past two decades.

A career that redefined British triathlon

Brownlee retires as one of the most decorated triathletes in Olympic history. He won individual bronze at London 2012 — famously overcoming a 15-second penalty — silver at Rio 2016, and finally completed the set with gold in the inaugural mixed relay at Tokyo 2020, producing the fastest split of the entire race. His summary afterwards became one of the sport's most quoted lines: "Olympics, completed it mate."

Beyond the Games, Brownlee was crowned World Triathlon Champion in 2012, standing on the podium in every race that season. He was a two-time World Sprint Champion (2010, 2011), the 2010 Under-23 World Champion, and a multiple Mixed Relay World Champion, adding Commonwealth Games mixed relay gold in 2014. To underline his dominance, Brownlee finished on the podium in each of the 42 races he competed in between July 2010 and May 2014. 

Alongside his brother Alistair, he helped make the Brownlee name synonymous with British endurance sport for well over a decade and inspired a new generation to enter the sport. The brothers also took the sport global with arguably its most iconic moment after Jonny’s famous collapse in Cozumel when Alistair lifted him up and helped him across the finish line.

The pair, who stayed based in Yorkshire throughout their careers, also launched the hugely successful Brownlee Foundation in 2014 and have since got more than 100,000 children participating in sport.

The next chapter

Retirement from racing does not mean stepping away from the sport — if anything, Brownlee is accelerating. He is extending and expanding his relationship with Supertri, which he often credits with saving his career, and his first act is to launch Enduro: a brand-new race format he is fronting and, crucially, taking on himself at selected Supertri race weekends around the world.

Enduro takes its name and its DNA from the ground-breaking professional format that put Supertri on the map: three back-to-back rounds of swim, bike and run, raced with no let-up. Now, for the first time, that same relentless style of test is being handed to age-group athletes. At a range of Supertri events around the world, competitors will take on three sprint-distance triathlons across a single event day — with very little time to recover between them. Finish one race and you're straight back into the water to start the next. With tight cut-off times throughout, this is no walk in the park.

In addition, and drawn directly from Brownlee's own exploits earlier this year, some Supertri event weekends will also feature unique challenge formats, such as the one Brownlee took on at Blenheim Palace.

Having proved what was possible at Blenheim, Brownlee now intends to do it again and again, on courses across the globe, lining up alongside everyday athletes wherever the Enduro travels.

Full details of the Enduro challenge series — including formats, participating race weekends and how to enter — will be released following the Supertri Pro Series Final in Jersey.

Jonny Brownlee said: “I’m not sure you are ever truly ready to retire from professional racing, but after an incredible journey, that’s where I find myself today.

My body is telling me I cannot have the fairytale ending, but it’s been pretty close to a dream career, one I never thought was possible when I woke up in the middle of the night to watch the Sydney Olympics aged 10. Back then the Olympic rings felt so far away, never mind three Olympic medals.

I owe so much to my parents, training partners, coaches, physios, sponsors, competitors and fans. None of it would have happened without you.

I also have to mention Alistair. He was the one who paved the way and made me believe my dreams were achievable. We did so much together, and he inspired me every single day.

I'm proud of the impact we had on the sport around the world, and especially the growth of triathlon here in the UK. And I'm just as proud of the Brownlee Foundation — nearly 100,000 children have now taken part in their first triathlon. I even train with two lads who started out in the Brownlee Foundation. That means a huge amount to me.

I have a wonderful wife and a growing son, and now it's their turn to come first. That’s what makes the decision easy.

I'm retiring from professional racing, but I'm not stopping altogether. I'll keep training and competing — there are races I've always wanted to do, and now I finally can, including more Enduro challenges with Supertri — The Weekend Warrior at Blenheim Palace was fun! It's a way to stay connected to a community I love, and to give back a little.

If my career taught me anything, it's that the only way to fail is by not trying your best. 

Hopefully I'll see you out there soon, with a smile on your face, doing what we all love.

I can't wait for my next challenge.”

Jonny's announcement can be watched in full on the Supertri Instagram channel.

Michael D'hulst, CEO and Co-Founder of Supertri, said: "Jonny is one of the true greats of our sport, and it's a huge honour that he has chosen Jersey — our spiritual home — to bring his extraordinary career to a close while also committing to staying a massive part of the Supertri family. What always set Jonny apart wasn't just the medals, the will to win, or how incredibly humble he is, but his belief that triathlon and sport make the world a better place.

"Watching Jonny take on ten triathlons in a single weekend at Blenheim, shoulder to shoulder with first-timers and age-groupers, told us everything about where this sport can go. Enduro is our way of opening that challenge up to everyone — and the fact that Jonny will be lining up to take it on himself, at events around the world, tells you everything about the man. Bringing back a name with this much history in the Supertri story, and doing it alongside Jonny, feels exactly right. This is just the start."

Watch the Supertri Pro Series Final

Jonny's announcement comes on the biggest day in short-course triathlon. The Supertri Pro Series Final sees the sport's superstars, including the Olympic champion he inspired, Alex Yee, go head-to-head over the iconic Supertri format for the largest single-day prize purse in triathlon. It's fast, relentless and made for fans: three back-to-back rounds of swim, bike and run, decided on Jersey's waterfront.

The full broadcast will be livestreamed on the Supertri YouTube channel on Sunday. The broadcast starts at 13:55 BST, with the women's race at 14:10 BST and the men's race at 15:20 BST.