Top Ironman athletes are loading up on carbs like never before. A sports dietitian breaks down what they’re eating, why it works, and what age-group athletes can learn from it.
Here’s why coaches are always encouraging runners to pick up the tempo.
A recent study peers deep into the family tree to find a Neanderthal mutation - present in 20% of modern humans - might be detrimental to endurance athletic performance.
Our Kona rookie and veteran started the 2025 Ironman World Championship 10 minutes apart, raced under the same sun, and met again at mile 21 on the run. Here’s what the data, heat, and island gods taught two athletes at opposite ends of experience.
After Wollongong, two Middle East T100 races will decide this year's overall champion. Athletes are vying for crucial points this weekend. Here's how they stack up.
10 of the 54 pro women who started did not finish at last weekend’s 2025 Ironman World Championship in Kona. From headaches to stomach issues to sheer suffering in the heat, find out what happened to athletes like Chelsea Sodaro, Taylor Knibb, Lucy Charles-Barclay, and more.
Asics dominated, representing half the top-10 finishers, with On and Hoka models making strong appearances.
Saturday's Ironman World Championship in Kona was wild. It left question marks on who will win the 2025 Ironman Pro Series.
We take a look at the bikes ridden by the 10 fastest cyclists in the women's pro race at the 2025 Ironman World Championship in Kona, Hawaii.
The Ironman World Championship has made a lot of progress in the last three years of women’s-only racing. Now it must avoid a setback.
Re-live the pro race at the 2025 Ironman World Championship in Kona through the lens of Triathlete staff photographer Brad Kaminski.
Matthews started the run over 14 minutes down from the leader. She finished just 35 seconds off the win.
Løvseth is the fourth Norwegian to win this race on her debut, and that’s not a coincidence, she says. Here’s why.
On a day that saw soaring temperatures and unexpected withdrawals in the podium positions, Solveig Løvseth proved best in her first try at the Ironman World Championship.
More than 1,700 of the fastest women in the world at the full distance will race tomorrow in Kona. Members of the triathlon industry count the bikes, aerobars, components, wheels, and more gear they used to get to the start line of the 2025 Ironman World Championship.
The sponsorship announcement, made on the eve of the Ironman World Championship, is controversial - but in triathlon’s current landscape, it’s also a smart business decision.
Though it’s intended to fly under the radar, we got a close look at Jackie Hering’s “unbranded” Cervelo P5.
From little-known brands to drool-worthy custom designs, today's age-group bike check-in offered a feast for the eyes.
This list includes some of the sport's top names, proving that the brutal conditions of world championship racing can get the best of anyone.
We spoke with athletes and industry leaders on the Big Island ahead of the 2025 women’s Ironman World Championship to find out what they’ve loved about the last three years, and what they hope Ironman will bring forward as we return to a mixed-gender format in 2026.
In this exclusive video interview, Daniela Ryf, Mirinda Carfrae, Michellie Jones, and Julie Moss tell us what they really think about Kona, competition, self-doubt, and ice cream.
With roughly 25% fewer racers in town than Kona has seen in decades and $1 million less in total entry fees, when compared to recent history, there is something different about 2025.
“I think it's really great to have all of these strong women here, because I think that is what you need. You need strong competition to push your limits.”
What started as a protest against triathletes wearing Speedos in public has turned into a charity fundraiser and beloved race-week tradition at the Ironman World Championship in Kona.
At 80, Natalie Grabow races with gratitude - and grit.
We get close look at the bike for one of the top contenders in the 2025 women's Ironman World Championship - American Taylor Knibb's special new Trek Speed Concept.
What kind of helmet is Lucy wearing? What about Chelsea’s shoes? What type of tinted goggles will Kat wear at the 2025 Ironman World Championships?
We get unprecedented access to two age-group women and follow along as an Ironman World Championship rookie and a veteran prepare for the most prestigious triathlon in the sport.
One of the most hyped Ironman World Championship rookies in 2025, Solveig Løvseth, shows off her custom-painted Felt IA 2.0.
Boasting one of the most eye-catching designs, 2023 Ironman World Champion Lucy Charles-Barclay is ready to turn heads out on the Queen K.
For the first time ever on Triathlete, we check out three-time Austrian Olympian Lisa Perterer’s unique Lapierre Aerostrom bike setup for her Kona debut.
We get a close look at 2025 Ironman World Championship contender Kat Matthews’ sleek race-day setup that takes its cues from the dark Hawaiian lava fields.
Laura Rossetti, 70, who's eyeing her 28th Kona finish at the 2025 Ironman World Championship, shares some lessons learned from her four decades of racing triathlon.
Competition will likely show early signs of who will take the tape at the women's Ironman World Championship. Thorsten Radde provides a likely play-by-play breakdown.
Bob Babbitt sits down with athletes as they prepare for competition.
Ironman World Champion Chelsea Sodaro has a new bike sponsor and a stunning custom paint job on her race-ready Ventum Tempus. She's also got some custom carbon details we've never seen before.
Triathlete magazine's editors are on the ground in Kona bringing you live, behind-the-scenes coverage. Check our live blog often for the latest.
Three past champions and several top 10 finishers are the likely favorites for Saturday's Ironman World Championship in Kona. Trirating.com expert Thorsten Radde breaks down the competition.
As the youngest in the field at Kona, Leah Hoole, 20, is dreaming big.
Don’t miss the action on the Big Island as 60 of the fastest women in the world compete for the world champion title on October 11.
Three of the fastest long-course age-group women in the world each share a swim, bike, or run session that they use to prepare for their big day at the women's 2025 Ironman World Championship in Kona.
Learn six quick, effective self-checks to spot inefficiencies in your triathlon running form - and fix them before they cost you time on race day.
We break down the best triathlon running shoes based on sockless comfort, transition speed, heat dissipation, water drainage, and more.
From old-school Tinley Talks to modern-day revelations, our editors and contributors pick the stories they loved reading and writing.
Challenge Fortaleza is a relaxed, affordable beach town set in a water sports heaven - perfect for mixing family time with triathlon adventures.
In an era where everyone's a self-proclaimed expert, it's easier than ever to be misled by shoddy science. A professional skeptic (yes, that's a thing) shares how to spot scams and snake oil backed by "studies."
Find your training zones and better understand your body's capacity by completing an at-home lactate threshold test.
A new host city for 70.3 worlds, the end of a popular U.S. Ironman, Jan Frodeno’s foray into ultrarunning, and more - catch up on what you may have missed in multisport this month.
“The threat to me was: ‘If you don’t shut up, we’ll go public about you.’ It has led me to believe and witness that there is a mafia-like culture within World Triathlon, and it has to stop.”
We’ve rated and reviewed triathlon cycling shoes based on 10 key elements that dictate your comfort while training and racing.
The XTERRA World Cup and World Championship was the main event this weekend. WTCS Weihai, Ironman Chattanooga, and Ironman 70.3 Augusta also offered great racing to watch.
Subtle and intuitive movements that fire up the core, but are gentle on the body.
A ladies' swimsuit made from neoprene, recovery devices ideal for travel, non-super running shoes, and more top our editors' list this month.
After racing there in 2025, former pro Tim "T.O." O'Donnell gives an insider’s look at the New Mexico course that will serve as the XTERRA World Championship for the next three years.
With various reports over the years of “large marine life,” writer Tim Heming asks experts to set the record straight on the risks of sharks in triathlon (and at the Ironman World Championship).
It’s a mad, mad world out there for cyclists - but it’s possible to find safe bike routes without cars. Triathlete’s editors and contributors share where they ride without fear.
Tell us your journey to qualifying for the 2025 Ironman 70.3 World Championship. We want to hear about your grit and determination.
Spoiler alert: You probably don’t want to race a triathlon with McDonald’s in your special needs bag.
We found the lightest running shoe in each category—from super shoe racers to max-cushioned trainers—to help you fly through the miles.
We take a look at Knibb’s journey from clip-ons to cutting-edge aero.
Before you sign up for your next triathlon, make sure the swim won't be scrapped. Here's what to check to avoid a disappointing duathlon.
Did penalties unduly shift the momentum during Spain T100? And who had arguably one of the best performances of the day...to finish in third? Laura Siddall offers her insights.
It's early, you're groggy, but your training plan calls for intensity. Here's how to fuel well for those early morning workouts.
Prepare to watch the XTERRA World Championship livestream September 25-27 by getting to know the main men's and women's contenders.
A new study shows triathletes who identify most with perfectionism are also more likely to become physically injured. Mental health researcher Jill Colangelo explains why this news should shock no one.
Triathlon coach Alison Freeman offers a practical approach to deciding whether to extend your season after your planned last race.
Joy, pain, satisfaction, relief - Triathlete staff photographer Brad Kaminski captured it all on the faces of Ironman world championship finishers at the 2025 men's race in Nice, France.
We’ll be back in Nice for the 70.3 championships and regular-season racing, but will triathletes and triathlon fans miss the split-worlds solution on the French Riviera?
Three surprising shoe picks for the podium, with a good mix of brands rounded out the 10 fastest shoes at the 2025 Ironman World Championship in Nice. Our expert shoe tester breaks down each one.
Almost 25% of the men’s pro field didn’t finish the race at the 2025 Ironman World Championship. Here’s what happened to the likes of Magnus Ditlev, Daniel Baekkegard, Antonio Benito Lopez, Kieran Lindars, and more.
The sixth race of the T100 Tour is set in Oropesa, Spain. With just two more races before the Grand Final, athletes will be looking to solidify their standings.
Discover real relief from menopause symptoms so you can stay strong, energized, and in motion during life’s natural transition
We take a look at the bikes ridden by the 10 fastest cyclists in the men's pro race at the 2025 Ironman World Championships in Nice, France.
The men's 2025 Ironman World Championship in Nice absolutely lived up to the hype. Check out the moments that mattered with original photography from Brad Kaminski.
The podium you saw this weekend at the men's 2025 Ironman World Championship in Nice is likely the podium for the Ironman Pro Series. Here's why.
We ask: What if the Norwegian Method is as simple as training (and racing) with your friends?
Norway's Gustav Iden talks about being strong enough to race the way he wants to (again), his special training environment, and the consequences of going out at 5:29/mi. pace at the 2025 Ironman World Championship.
Three-time Ironman World Champion Patrick Lange shares how getting sick on Monday impacted his race, plus why he's so happy for second-place Gustav Iden.
It's the Norwegians' world. We're just living in it.
The 28-year-old Norwegian knew his teammates Gustav Iden and Kristian Blummenfelt would be his biggest competition. Turns out, they were also his biggest strength.
It's a sub-8-hour podium in Nice, France, as Stornes wins on debut at one of the most stacked Ironman World Championship men’s fields in history.
More than 2,500 of the fastest men in the world at the full distance will race tomorrow in Nice. Members of the triathlon industry count the bikes, aerobars, components, wheels, and more gear they used to get to the start line of the 2025 Ironman World Championship.
From little-known brands to drool-worthy custom designs, today's age-group bike check-in offered a feast for the eyes.
The Triathlete team was in Nice, France, in the week leading up to the men's 2025 Ironman World Championship, and we got exclusive access to top podium contenders to see what swim goggles, bike helmets, and running shoes they'll be racing with this weekend.
The Olympic gold medalist and 2022 St. George Ironman world champion is back with some fearsome fitness and one of the most unique bikes in transition. We look closely at Kristian Blummenfelt’s race-day Cadex setup.
Perhaps one of the most feared men in the 2025 Ironman World Championship field, Gustav Iden, shows off his very serious race-day ride. We take a close look.
With four world champs in one of the deepest Ironman World Championship fields ever, pros are prepared to take big risks. But the memory of last year's meltdowns are still fresh (and painful).
The last person to win an Ironman World Championship in Nice is back, and we’ve got a close look at Sam Laidlow’s slick, stark Canyon.
Covered in custom details, the three-time Ironman World Champion is back in Nice hoping to make it four with his special Canyon Speedmax CFR. Get the inside scoop his unique ride.
The Danish athlete whose bike was deemed “too aero” at last year’s Ironman World Championship is back with one of the most visually symmetric (and aero) bikes we’ve seen. Check out the first look.