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Build bike-specific strength—and aerobic efficiency—with these VO2 max repeats.

A new study looks at how accurate smartwatches are at detecting swim strokes, measuring run and bike distance, and reading heart-rate data. The results are surprising.

Picking a new bike saddle can feel like Russian roulette, but our fit expert helps discern when to stick with a new seat or when to move on.

Save big on swim, bike, and run gear at Amazon Prime's Big Deal Days Sale, happening Oct. 8-9, 2024. We brought you the best Day 1 deals on tri gear, tech, and sports nutrition.

Ready to take to the dirt? Here's what you need to know to get started.

Omius, a small U.S. startup, claims its cooling headband boosts athletic performance — but independent researchers aren’t so sure.

Did adding more slots to the women's field "water down" the competition in Nice? We look at qualifying spots, DNF rates, finishing times, and more from the women's 2024 Ironman World Championship.

American Katie Zaferes has raced her last triathlon as a pro. The two-time Olympic medalist and 2019 World Triathlon world champion talks with Triathlete about the decision to retire now and why she opted out of moving up to long-course racing.

Pro Laura Siddall makes the rounds in the midst of a super-packed short-course calendar and talks about some races that might have flown under the radar.

After a full year of testing, Outside's editors have identified 12 iron-distance/marathon shoes that will boost your performance and make the race more enjoyable.

Use this pool tool to reinforce good kicking form in this workout from coach Sara McLarty.

Some of today’s top endurance athletes are going crazy for baking soda (aka sodium bicarbonate) supplements. But how does sodium bicarbonate work, and what are the downsides for triathletes?

What's in a name? For brands like Ryzon, Zoot, Wove, and VeloVetta, a name isn't just a label - it's an identity. Here's how they came up with theirs.

Want to see solid gains on the bike before your next goal race? Take to the hills.

With newer devices allowing for better heart-rate measurement while swimming, there’s a lot to know about incorporating heart rate-focused swim workouts into your training.

From mountain lions to magpies, there are plenty of creatures you might encounter on a ride or run, and they aren't always friendly. Here's how to deal.

Racing on a rolling or hilly bike course this year? This session is for you.

For the first time ever: Alongside all of your favorite training, gear, news, and tri culture content you now can comment, share, and follow in our inclusive multisport community.

Pro triathletes Tim O’Donnell and Tim Reed share the hard lessons learned from their serious heart health journeys.

Forget having to learn a separate sequence for warm-up, cool-down, or recovery. These 8 poses targeting runners’ most-used muscles will help keep your body happy and injury-free.

Last weekend’s racing saw familiar pro names doing familiar pro things from Italy to Ibiza, and back to China.

Ironman brings back an old favorite and announces a new location, PTO changes plans for Grand Final, and the end of a 26-year triathlon career - catch up on what you may have missed in multisport in September 2024.

Tim Heming speaks to pro Ruth Astle on everything Nice bike course: power numbers, strategy, how it played out, the “media moto effect,” and much more.

Try this ladder set to improve pace control over a long swim and make sure you conserve enough energy to finish strong!

What did television personality Paddy O'Connell use when sucking at triathlon this month? We asked the star of "Paddy O Sucks At..." for his favorite gear from his first triathlon.

With eyes on the ground on most of the top pros’ gear last week in Nice, Gear Guru Chris Foster breaks down the cutting-edge trends that could help the rest of us get faster.

All of the electrolytes, none of the hangover - these mocktail recipes are tailor-made for athletes looking to replenish after a tough workout with a post-race bev. (Fancy umbrellas optional, but encouraged.)

We take a look at the running shoes the top pro finishers wore at the Ironman World Championship on Sunday in Nice, France.

Just like pressure makes diamonds, bad workouts can make great races. Coach Alison Freeman shares how you can turn your worst training day into a valuable learning experience.

Trirating expert Thorsten Radde previews the pro fields for T100 Ibiza, with analysis and odds for you to make your predictions.

We take a look at the bikes ridden by the ten fastest cyclists in the pro race at the 2024 women’s Ironman World Championships in Nice, France.

As the women took center stage outside of the U.S. for the first time ever, editor-in-chief Chris Foster explains why the 2024 Ironman World Championship pro results ended up spread out all over the French countryside.

Pro triathlete Laura Siddall gives a detailed look at the Pro Series “race within the race” at last weekend’s women’s Ironman World Championship in Nice.

When our favorite pros don't finish the Ironman World Championship, we're hurting right there with them. Learn what happened to the nine athletes who DNFed at Nice 2024.

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 nearly flawless race in France, Germany’s Laura Philipp powered to the win and her first Ironman World Championship title.

Members of the triathlon industry spent hours tallying up what bikes, aerobars, components, wheels, and more gear that the fastest women in the world are using at the 2024 Ironman Championship in Nice.

Our up-to-date breakdown of the top contenders for the podium at this year’s Ironman World Championships professional women’s race in Nice.

After pulling out of the 2024 Ironman World Championship in Nice due to a muscle strain, Lucy Charles-Barclay’s absence has blown this race wide open. We discuss what it all could mean.

How do you kick back after placing 10th at the 108-mile Ultra Trail du Mont-Blanc (UTMB) ultramarathon? If you're Lucy Bartholomew, you have a relaxing day racing the 140.6-mile Ironman World Championship triathlon.

"It’s with a heavy heart that I share I won’t be able to race in the Ironman World Championships this Sunday."

It's going to be a history-making day in Nice - and you won't want to miss a second! Watch all the action on the women's 2024 Ironman World Championship livestream on September 22.

We've compiled the qualifiers for the women's 2024 Ironman World Championship start list, with insight and analysis on how the race is shaping up, and some stats about the pro field.

These athletes have all won the coveted Ironman World Championship title—some of them more than once—but what are they doing now?

Looking for a step-by-step guide to packing your bike for a flight? We've got just the ticket with this comprehensive guide from a well-traveled pro.

Danielle Lewis has had a breakthrough season - could it it culminate in a great day at the 2024 women's Ironman World Championship in Nice? Bob Babbitt talks with the American ahead of the big day.

Ahead of this weekend's Ironman World Championship race in Nice, France, Els Visser chats with Bob Babbitt about her journey from shipwreck survivor to one of the top triathlon pros in the world.

DeRue explains why some locations were added (and some were removed) from the 2025 Ironman Pro Series schedule, as well as insight into a new prize-money structure.

In five attempts at the Ironman World Championship, Anne Haug has already racked up one win, one second, and three third place finishes. What will 2024 bring?

Chelsea Sodaro has had a much different season than when she won the Ironman World Championship in 2022. How has that affected her going into race day in Nice? She chats with Bob Babbitt about her pre-race prep.

A first-ever women's Ironman World Championship race in Nice, France, means all-new race dynamics. How will the pro race play out this weekend? Thorsten Radde looks into his triathlon crystal ball.

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.

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.

1,400 age-groupers, 52 pros, 17 hours, and 1 epic challenge - we've got the numbers behind this weekend's 2024 women's Ironman World Championship in Nice, France.

The reigning Ironman World Champion talks with Bob Babbitt about why she changed her mind on racing Nice this year. Plus - is she ready to defend her title?

Five Ironman World Championship titles, five Ironman 70.3 World Championship titles, three Challenge Roth titles, and two appearances in the Olympics - Bob Babbitt takes a walk down memory lane with the newly-retired Daniela Ryf ahead of this year's 2024 Ironman World Championships.

Kat Matthews has been on the podium at Ironman World Championship events, but not on the top step - yet. Bob Babbitt talks with the Brit ahead of this weekend's big race in Nice, France.

UPDATE: Tomas Rodriguez Hernandez has agreed to serve a two year period of ineligibility after doping samples collected at Ironman Texas tested positive for clomiphene. He will now also forfeit prize money, standings, and points from the event.

This set from coach Sara McLarty incorporates a mix of strokes, plus short bursts of speed, to help build a bigger swimming engine for race day.

Sleeveless wetsuits are cheaper, less restrictive, and cooler—but when should triathletes wear one, and why?

"It's more than just a race—it's a way to show the world that Deaf and hard-of-hearing athletes can compete at the highest levels."

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 2024 Ironman World Championship in Nice, France.

Rear hydration solutions are notorious for either being cumbersome or ejecting water bottles. Learn how to keep your bottles securely behind your saddle.

Triathlon has no shortage of colorful characters, but what's behind nicknames like "The Falcon," "The Junkyard Dog," and "The Mermaid?" You'll be surprised to find out.

Though triathletes love to be prepared, the swim start of a triathlon still ends up being a shock to the system. We break down what to (actually) expect and how to get ready.

Enjoy unleashing some power and speed on this short, sharp hill set.

Understanding why your neck and shoulders hurt can help you find the fix—and pain-free optimal performance.

Shaved legs or au naturel? Sprint in the finisher's chute or jog it in? And which is more impressive: Winning the Olympics or the Ironman World Championship?

Pro Laura Siddall scans the globe, analyzing an incredibly busy weekend of triathlon with notable finishes from familiar faces.

Warming up your body is good, but there's now evidence that warming up your mind could be just as important. Get your mind ready to go with these evidence-backed pre-race routines from neuroscientist Daya Grant.