Kona

Volcanic eruptions on the Big Island of Hawaii have triathletes around the world on high alert.

Ironman world record holder Tim Don completed the Boston Marathon in an impressive 2:49:42.

This vegetarian has a refreshing approach to endurance fueling.

The good, the bad, and the exciting bits of Ironman’s biggest pro shakeup in nearly a decade.

We hit up the premiere in New York City to get the inside scoop on this year’s special.

Canada's Lionel Sanders is in Tempe to defend his Ironman Arizona title—just over a month after finishing second at the Ironman World Championship.

For the first time we have in-depth access to data that paints a new and dynamic picture of the day.

An MD explains when to push through—and when to quit—when your body says WTF?

Germany's Patrick Lange captured his first Ironman World Championship title in impressive fashion.

Switzerland's Daniela Ryf says that her third Ironman world title was her toughest victory ever.

A look at 20 spectacular images capture by the Getty Images crew in Kona.

This year more than 110,000 athletes vied for a slot to the Ironman World Championship, and 2,350 athletes earned the right to race in Kona.

CRAZY ASS FANS. That was hard.

Photographer Paul Phillips returned to the finish line in Kona to capture the final hour of the Ironman World Championship.

Photographer Rocky Arroyo joined the more than 2,350 athletes from 66 countries to grab images of the famed Ironman World Championship swim start in Kailua Bay.

Hear what the top professional finishers had to say hours after completing the 2017 Ironman World Championship.

Finland's Kaisa Sali finished fifth for the second year in the row at Saturday's Ironman World Championship.

South Africa's James Cunnama made some major changes this year, including rejoining his former coach Brett Sutton.

Germany's Sebastian Kienle chats about the weight of being a former winner at this Kona race.

American Heather Jackson says she improved on the swim, bike and run since last year's Kona podium performance.

Check out Erin Beresini's author page.

Great Britain's David McNamee had a "special" race that put him on the Ironman World Championship podium for the first time in his career.

Australia's Sarah Crowley has had a breakthrough season and capped it off on Saturday with an Ironman World Championship podium.

There were repeat podium finishers, several new faces and two worthy champions.

Great Britain's Lucy Charles gave defending Kona champion Daniela Ryf a fight on Saturday.

Canadian Lionel Sanders struggled in his first two appearances at the Ironman World Championship in Kona, but had a breakthrough performance on Saturday.

Recap the thrilling Kona 2017 race-day action with this gallery from photographer Paul Phillips.

A gutsy move from Great Britain’s Lucy Charles put Daniela Ryf through an emotional roller coaster on the bike.

This year’s race saw the men’s field take a lot of risks—for some it paid off.

Switzerland's Daniela Ryf says that she woke up on race morning at the 2017 Ironman World Championship.

Germany's Patrick Lange says that during one brief moment on the bike he considered dropping out because he was struggling.

Switzerland's Daniela Ryf further cemented herself in triathlon history, becoming the fourth woman to earn three-straight Ironman world titles.

Germany's Patrick Lange ran his way to victory, crossing the finish line in a record 8:01:40.

These Iron-support squads showed love for their racers on their chests.

A collection of industry experts came together Friday to count all key components of the bikes.

Germany's Sebastian Kienle discusses the unique race tactics of Kona and what it will take to earn the victory.

Australia's Sarah Crowley won two championship-level races this year and will be one to watch at Saturday's Ironman World Championship.

Bike check-in served as the final task before athletes headed home and got one more nervous night of sleep before race morning.

"How would you explain what you do for a living to a small child?"

Every year in Kona there are two winners but only one last finisher. We explore Kona’s unique, emotional tradition.

With lots of bodies at the underpants run this year, we look at a few that stood out from the crowd.

We're closing in the final hours of race week at the Ironman World Championship.

We're nearing the start of the 2017 Ironman World Championship, with athletes spending Friday focusing on the final details.

"And in this moment, I think maybe I’ve discovered the point of 'Triathlife.'"

Canadian Lionel Sanders will be a bit of a wild card as he makes the start at the Ironman World Championship on Saturday.

The slick ride has been on display at this week's Ironman World Championship expo.

American Heather Jackson is a top contender for Saturday's Ironman World Championship podium.

The new dad talks the pitfalls of the pro peloton, and his projected timeline for iron domination.

Meet the person whose 10,000-foot view helps conduct this whole iconic triathlon symphony.

A self-described ultrarunner who does triathlons (not the other way around), john Kelly will be racing Saturday in Kona.

The Diamondback Andean of American professional triathlete Matt Russell.

A lot goes into the most important triathlon in the world—we look at some of the stuff that makes the machine move.

Quintana Roo today unveiled its PRsix Disc Series of triathlon bikes.

Hundreds of triathletes, supporters and industry members stripped down for the 20th running of the Kona Underpants Run.

We take a look at a day in the life of the biggest week in triathlon.

A look at the Felt IA two-time Ironman world champion Daniela Ryf will ride as she looks for her third-straight Ironman world title.

In this Kona Minute, we share the unique preparation method of one pro favorite, glance at a brand-new helmet and get your race predictions at the expo.

There are 50 questions spanning the nearly 40-year history of the event.

A big highlight of race week at the Ironman World Championship for many triathletes is the Kona Coffee Boat.

The current world record holder for fastest Ironman finish will not be making the start this Saturday.

On Tuesday we caught up with several athletes, and learned a secret about the Kona Coffee Boat that might disappoint you!

Even with two Ironman world titles under his belt, Germany's Jan Frodeno doesn't believe he's shown what he can do at the Ironman World Championship

Thirty-five years after her famous collapse on Ali'i Drive, Julie Moss has come full circle.

Tuesday marked four days out from the Ironman World Championship.

The Trek Speed Concept of American professional triathlete Linsey Corbin.

Kona’s oldest female competitor this year is swimming in a fountain of youth.

"As a person, Mark's [Allen, his coach] biggest complaint about me is that I'm too nice."

The Scott Plasma 5 of German professional triathlete Sebastian Kienle.

A look at the Cannondale Slice Hi-Mod that American professional triathlete Heather Jackson will use to tackle this year’s Hawaii Ironman.

We're recapping the action from Monday with this Kona Minute, brought to you by Zwift.

“My first goal for Kona is to enjoy it. It’s been three years of hard work to come from a total beginner to where I am now."

American Ben Hoffman had his best Ironman ever earlier this year.

The Big Island is bustling with the hype of Ironman World Championship race week!

American Alicia Kaye shares open-water swim tips that every triathlete can use.

A close-up look at the Canyon bike last year's breakout star Patrick Lange will ride on Saturday.

It's race week in Kona and American pro Heather Jackson is one of hundreds of athletes getting in final key workouts.

We're on the Big Island to bring you comprehensive pre-race coverage from the 2017 Ironman World Championship.

Karen Smyers’ top picks for the women’s podium in 2017.

A look at the weekend action from the Big Island.

Dave Scott shares in his own words the very different strategies he believes the men and women must take to bring home the crown.

Can Daniela Ryf get a third-straight Kona victory?

Germany's Jan Frodeno will be looking for his third-straight Kona title.

Meet this 45-year-old age grouper from upstate New York.

Want to follow the Ironman World Championship on Oct. 14? Here’s what you need to know.

Heather Jackson is one of the friendliest faces on the Ironman circuit—and one of its toughest competitors.