Ironman has revised its new qualifying system for Kona world championship, introducing gender-specific slot roll downs and separate performance pools based on participation to address the gender imbalance that had been favoring male athletes.
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.
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.
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.
Matthews started the run over 14 minutes down from the leader. She finished just 35 seconds off the win.
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.
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.”
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.
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.
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).
The women's 2025 Ironman World Championship in Kona will feature three past champions, nine of the top 10 finishers from 2024, and the top 19 athletes in the Ironman Pro Series. In other words: it's gonna be one amazing race.
Julie Derron is poised to make her mark at the 2025 Ironman World Championship in Kona, following in the footsteps of successful Swiss triathletes like Natascha Badmann and Daniela Ryf.
Confused by Ironman’s new Kona and 70.3 Worlds qualifying system? Read up before it kicks off July 6.
Updated results, standings, expert insight, and everything you need to know about the Ironman Pro triathlon race series.
DeRue has had "exciting" conversations with athletes, politicians, and community members about the Ironman World Championships - but where will they lead?
Iron War wasn't the only Kona race that had fans on the edge of their seats. These epic Kona battles were thrilling to the very last second.
With a rich 40+ year history, the Ironman World Championship is home to some of the greatest races in the sport of triathlon. Expert Thorsten Radde has created an objective, data-based system to rank the 10 very best.
We take a quick flyby video tour of the 2024 Ironman World Championship Kona course.
The men's 2024 Ironman World Championship start list is set! Get insight and analysis on how the race is shaping up, plus some stats about the pro field.
Think you know the Ironman World Championship in Kona? Think again. We’ve got a full guide for racers, family, friends, and dedicated fans with expert insight into every detail of the IMWC experience.
With a rich 40+ year history, the Ironman World Championship is home to some of the greatest races in the sport of triathlon. Expert Thorsten Radde has created an objective, data-based system to rank the 10 very best.
Get excited! The 2023 Ironman World Championships documentary from Nice and Kona will be available for free on-demand streaming on Outside Watch starting December 30 - and we've got a video preview to give you all the goosebumps.
Lucy Bartholomew just became the second woman to race UTMB and the Ironman World Championship in the same year. Here's what she learned.
No longer "just a swimmer," Lucy Charles-Barclay won the 2023 Ironman World Championship in her own way, and on her own terms. As she ponders what's next, her competition has a different question: What will it take to beat her?
Underwhelming response for the women’s Nice 2024 event leads to addition of slots at select 70.3 races and for loyal age-groupers.
These photos from the women's age-group race at the 2023 Ironman World Championship capture the special alchemy that occurs when you combine 2,000 women, an epic challenge and a stunning Hawaiian landscape.
We take a look at the bikes ridden by the ten fastest cyclists in the pro race at the 2023 women’s Hawaii Ironman World Championship in Kona.
"Back when we first started, I couldn’t imagine a scenario like we saw on Saturday. It just seemed so far off."
Here’s a look at the shoes worn by the top 10 finishers at this year’s women’s world championship race in Hawaii.
A record-breaking 97.2% of the field completed the 2023 Hawaii Ironman World Championship. Here's what finishing meant to some of them.
Data from the women's 2023 Ironman World Championship makes one thing very clear: Women are crushing the triathlon game. Now what?
There was some fast and furious racing on the Big Island, but not everyone made it to the finish chute. What happened to those who didn’t?
What a day! Relive the history-making pro women's race at the 2023 Ironman World Championship with this photo gallery from Triathlete photographer Brad Kaminski.
Lucy Charles-Barclay's win at the 2023 Ironman World Championship showed that by doing the work, we not only become worthy - we become greater than we ever thought possible.
After making the U.S. Olympic Team in August, Taylor Knibb tackled her first Ironman at the women's Hawaii Ironman World Championships. She reveals the lessons she learned.
Philipp had a breakthrough this weekend at the women's Hawaii Ironman, running her way onto the podium in the final miles of the race. She explains how she did it.
Germany's Anne Haug took second place at the women's 2023 Hawaii Ironman World Championship with the fastest women's run ever recorded in Kona—she tells all about it.
After four near-misses, Lucy Charles-Barclay breaks down her perfect day, talks about a dream realized, and what it was like racing only with women.
After four second-place finishes, Lucy Charles-Barclay writes history (and a new course record) at the first-ever women's-only Hawaii Ironman World Championship in Kona.
Feast upon the data and analysis behind the frames, components, aerobars, wheels, and more in the women's 2023 Ironman World Championship bike count.
We went to transition in Kona and pulled out some of our favorite bikes from the day—from the fast to the funky.
No place in Kona better captures the pre-race energy than Dig Me Beach (an unofficial name), the site of the race's swim start.
"The quality is just so amazing that you have so many potential athletes who can win this race. You would need an absolute perfect race to be on top of everyone."
While the former Brazilian pro has 14 top-ten World Championship finishes, this year’s Kona start line looks slightly different for 60 year-old Fernanda Keller.
The 2023 Ironman Kona Underpants Run had no shortage of shenanigans - or skivvies.
We take a close look at the customized ride of Olympian Sarah True.
Returning world champion Chelsea Sodaro's custom-painted Canyon has more than a few unique flourishes. We take a close look at the bike she'll be riding this weekend.
A frank conversation with Ironman CEO Andrew Messick reveals details about the pro series, why now, what it could mean for pro world championship qualification in the future, and more.
2,000+ age-groupers, 53 pros, and 1 history-making day - we've got all the numbers behind this weekend's 2023 women's Ironman World Championship event in Kailua-Kona, Hawaii.
Hawaii Ironman World Championships is all about being prepared, so nothing throws a bigger wrench into the field than a strong, unknown quantity on the start list.
U.K.'s Fanella Langridge wil be looking to improve on two top-ten finishes at Ironman World Championships this weekend on her new, custom-painted blue smoke Trek Speed Concept.
The women's 2023 Ironman World Championship festivities officially kicked off with athletes proudly representing their countries in the Parade of Nations.
After her fourth second-place finish at last year's Hawaii Ironman World Championships, Lucy Charles-Barclay is back in Kona ready to lead the race from the gun. We take a close look at her amazing new custom mermaid-themed CUBE.
Germany's Laura Philipp will look to improve upon her fourth-place finish at last year's Hawaii Ironman with the help of her new Canyon Speedmax CFR R085.
With one of the deepest, most well-rounded fields ever, and a historic women’s-only event, the 2023 Hawaii Ironman Championship could be one for the ages. We break down who to watch, when, and where.
The former world champion is looking to return to the podium in Kona this weekend—we take a close look at her interesting setup.
Taylor Knibb is in Kona (and on the Ironman World Championship start list). We have an exclusive close-up look at her Trek Speed Concept.
After missing the Hawaii Ironman last year due to a tragic bike accident, Kat Matthews is one of the most anticipated Kona debuts this year. We take a close look at her heavily modded bike setup.
American Skye Moench is looking to improve upon her fourth-place finish at last year's Ironman World Championships in St. George off the strength of her powerful bike leg. We get a close look at her custom-painted rig on the shores of Kailua Bay.
Daniela Ryf's very speedy Felt IA 2.0 is ready to carry her to another attempt at the Ironman World Championships this weekend in Kona.
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 2023 Ironman World Championship in Kona.
Discover the five most heartwarming finishes in the history of the Ironman World Championship and the incredible stories that drove them.
We've compiled an updated start list for the women's 2023 Ironman World Championship in Kona, with insight and analysis on how the race is shaping up, and some stats about the pro field.
Two expert coaches analyze the Ironman World Championship courses in Kona and Nice, and explain how to apply these crucial lessons to nail your own "championship" race.
We asked two coaches for their go-to Ironman World Championship workouts athletes can use as they prep for Nice, Kona, or any "A" race on their calendar.
Chugging beer out of pink plastic flamingos, Ponchoman on the ukulele, and the hallowed (drinking) grounds of the Hawaii Ironman World Championships—Huggo’s.