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A great running stride isn’t learned by focusing on your footstrike or cadence, it develops as you improve your body’s strength and mobility.

Physics rules the highly-specialized tri bikes, from the seatpost and frame to the way a rider sits on it.

The longest World Triathlon season in world history made its penultimate stop in Bermuda; South Africa has a new 70.3, and we take a quick race-cation to Cabo.

"I used to watch so many triathletes do silly things in the weight room, thinking: ‘Why are they doing that?’ so I started creating a thought process around how I could help them."

Breathing to both sides of your body becomes even more important when you move from the pool to the open water.

The news from around the multisport world this week.

You’re most vulnerable to falling ill 72 hours post-race. Here’s how to avoid it.

The brand intends to win over prospective customers with an astonishingly wide range of sizes

Approximately half of athletes who menstruate are using a hormonal contraceptive. How does using hormonal birth control affect athletic performance? We asked the experts to break down what we know - and don't know - about hormonal contraceptives for endurance athletes.

The Under Armour HOVR Phantom 3 keeps its high-energy return DNA intact while pushing the envelope on innovation

From pro triathletes to coaches to mental-health experts, these seven experienced triathletes bare their (sometimes messy) souls to help you skip the steep multisport learning curve.

Learning to cue a tall, balanced run posture, combined with strategic, specific core training, is the path to improving your run form, alleviate pain, bolster training durability, and find seconds on the clock.

What does it take to go from Olympic-distance phenom to the top step of the 70.3 World Championships? Taylor Knibb's coach, Ian O'Brien shares the little details that added up to a big win in St. George, including workout instructions for three key sessions ahead of her race.

Wahoo introduces an upgraded Roam with color monitor and impressive GPS capabilities. We look at the new features and whether the Roam is useful for triathletes.

Enjoy mixing up the terrain and the intensity with this off-season run session.

“Everyone just bows to the Norwegians, and we were like: ‘F**k that!’ If you’re not going out there to really test yourself against the best, and people that everyone says are better than you, then why are you even doing the sport?"

After announcing that this year's Ironman World Championship race was her last, the fan favorite wasted no time making her mark on the ultrarunning scene, placing fifth at the Javelina Jundred 100-mile trail race last weekend.

We take a look at the bikes ridden by the five fastest cyclists in the women's and men's pro races at the 70.3 World Championships in St. George.

Taylor Knibb is a goblin on two wheels, and Ben Kanute’s bag of tricks can’t match Kristian Blummenfelt - the masterful performances in St. George were a treat. Plus, the Super League season wrapped in Saudi Arabia. (Yes, that Saudi Arabia.)

This spooky interval workout will leave your nerves frayed and your shoulders feeling like ghosts.

In the hilly 13.1-mile run course of the Ironman 70.3 World Championship on October 28-29 in St. George, the running performance - and running shoes - of top athletes was something to marvel at.

The news from around the multisport world this week.

Sam Long and India Lee focused their seasons on the 70.3 World Championships, only to see their hopes destroyed by penalties. Is it time to change the way races are officiated?

A relentlessly close swim, a controversial penalty, and a run battle for the ages - the pro men's race at the 2022 Ironman 70.3 World Championship was a high-stakes, high-drama affair that had viewers on the edge of their seats from the very start to the very finish.

And she's only 24 years old.

It was the Taylor Knibb show at the 2022 Ironman 70.3 World Championship in St. George as the 24 year-old American put on a master class of racing to take her first-ever 70.3 World title.

A four-time Olympian, an around-the-world cyclist, a local legend, and the mother of a pro podium contender - these age-groupers are just as buzz-worthy as the pros racing at this weekend's 70.3 world championships in St. George.

The 2022 Super League Championship Series comes to a close with a thrilling race in NEOM. Look back on this season's triumphs (and tetanus shots), plus get the details on how to watch the Super League finale livestream starting at 7:00 ET Saturday.

"I’m really happy to be rolling into a late October championship race having stayed healthy all season. My best races come when I’ve been able to string together months of consistent running."

"Every time you start a race, it's important, and any world championship is super important."

Jan Frodeno called the 70.3 race “the world championship that everyone forgets about.” It shouldn’t be.

Trirating expert Thorsten Radde predicts how the men's pro race will play out at 70.3 Worlds in St. George.

Is Rudy von Berg's shiny gold bike a sign of things to come at this weekend's 70.3 World Championships? We sat down with the American pro ahead of his hunt for some podium bling in St. George.

How will the Olympian juggle flipping back and forth from short-course to long-course racing this fall? How is she adjusting to her new TT position?

No one knows what it takes to win a 70.3 World Championship better than Craig "Crowie" Alexander and Mirinda "Rinny" Carfrae - and we've got their podium picks for this year's showdown in St. George.

Our up-to-date breakdown of the top contenders for the podium at this year’s St. George 70.3 World Championships men’s event.

Bermuda's own Flora Duffy has won just about every race in the sport, from the Olympics and Commonwealth Games to XTERRA World Championships. A wild card spot to 70.3 Worlds gives her the chance to take on a new challenge - racing as the underdog in a star-studded field of middle-distance specialists.

6,000 athletes, 4,000 volunteers, and a whole lot of excitement - take a look at the numbers behind this weekend's Ironman 70.3 World Championships in St. George.

Make sure to keep it fun — plus other tips from coach Marilyn Chychota.

Can Lucy Charles-Barclay defend her title three weeks after Kona, or will she be caught by the likes of Taylor Knibb, Paula Findlay or Holly Lawrence? Trirating expert Thorsten Radde predicts how the women's pro race will play out at 70.3 Worlds in St. George.

Our up-to-date breakdown of the top contenders for the podium at this year’s St. George 70.3 World Championships women’s event.

American pro Sam Long shocked the triathlon world when he announced earlier this year he wouldn't be racing in Kona - instead, he was all-in on St. George. Does he regret that decision? We caught up with the young pro ahead of this weekend's Ironman 70.3 World Championships.

The news from around the multisport world this week.

After losing their title sponsor in the COVID pandemic, Team Octagon Elite is out to prove there's still a place for elite amateur triathlon teams in the sport.

Saudi Arabia is known for many things: Oil. Skyscrapers. A culture steeped in Islamic heritage. The Great Mosque of Mecca. But multisport?

You know the feeling: You’ve got X days until your race and you don’t have aerobars/a wetsuit/race wheels/new goggles. We’ll break down what’s worth freaking out about (and what’s not).

We don’t care if it makes us basic - we love a good pumpkin spice anything. From nut butter and coffee to sports nutrition and recovery fuel, consider this your complete guide to the flavor of fall.

Two days of exciting racing await at the 2022 Ironman 70.3 World Championships - and you can catch the free livestream for both pro races exclusively on Outside Watch.

A star-studded roster, including defending IRONMAN 70.3 World Champions Gustav Iden and Lucy Charles-Barclay, make up one of the deepest pro start lists in 70.3 Worlds history.

After the 2022 Ironman World Championships, Gustav Iden's lucky hat is now 10 wins from 10 races. The headwear's origin story only adds to the legend.

11 years ago, the Ironman 70.3 World Champs landed in Henderson, Nevada, marking the first time the event took place outside of Florida.

Do you experience a brief spell of dizziness, nausea, headache, or blurred vision at the start of a workout or race? Rebound hypoglycemia may be the culprit.

Sodaro and coach Dan Plews reveal three sessions that helped this Kona rookie break the tape at the 2022 Ironman World Championship.

The journey to Ironman world champion was not an easy one for Chelsea Sodaro. We uncover the pieces that made it all come together—the PTO Maternity Leave policy, a super-smart sports scientist coach, and a whole lot of grit.

Your timing chip is one of the most important pieces of gear you'll wear on race day. But what if it falls off in the swim, or if you miss a timing mat on the course? Don't panic - the experts are here to help.

Our Triathlete News anchor Adam Hill has shaved his legs, and he's ready to give you the (not-so-serious, not so-real) news with a side of laughs.

The news from around the multisport world this week.

Spoiler alert: Research shows fasting might not be the answer for athletes - especially female athletes - looking to maintain good metabolic and cardiovascular health.

A friendly reminder that there’s much more to a strong core than visible abs

We ran in ten new supershoes and compared their feel and ride so you can narrow your search for the model that best fits your stride and preferences

Six Black women came together to build a running community, but what they created was a foundation for so much more

Sweden’s Terese Steraas and France’s Marine Beaury are tethered together and don't speak the same language, yet they navigate grueling swimrun events. How do they do it?

If you’ve experienced burning pain in the forefoot that radiates into the toes, you may have what’s called Morton’s neuroma.

The year: 2011. The stage: Kona. The star: Craig "Crowie" Alexander. As we celebrate Gustav Iden's new course record, we look back on the breakthrough race that showed us what was possible at the Ironman World Championships.

Exclusive: An investigation into the legality of Gustav Iden’s prototype Hawaii Ironman run shoes has lead to a surprising conclusion: anything goes. But other than the Norwegians, nobody seems to know.

Our five-minute stand down (see what we did there?) with Ironman’s head referee to find out why the pro penalty box was overflowing in the Ironman World Championships with race-changing violations - and why he believes that's a good thing.

A low-carb diet could actually be letting you down. We dig into some surprising side effects.

Applying more effort to the second half of the bike in a race is a powerful strategy, but it's also powerfully hard to pull off.

We take an honest post-mortem of one of the most historic Hawaii Ironman World Championships from those who were there.

These moves will help you safely progress until you’ve got the exercise down

What makes tools problematic is that swim aids can also mask your weakness.

Who is the mysterious "bigger and heavily funded organization" who wrestled longtime control of the Kona coffee boat? We found out.

With a bike split of 6:57:22 and an overall finishing time of 13:19:38, Audrey Maheu accomplished what she set out to do in Kona: prove that it’s possible to be fast and have fun.

Where you run—not just how much—can make a big difference to your run form and fitness.

We take a look at the bikes ridden by the top ten fastest pro cyclists at this year’s world championships.

What the heck is a “Maurten move” anyway? And more…

With his mantra of 1 percent better every day, Chris Nikic continues to change the perception of what is possible. Crossing the finish line at the Ironman World Championships adds his name to the history books and cements his legacy as a pioneer in the sport.

Here’s what’s holding you back from outkicking your rivals.

Some interesting movement punctuated the annual Kona Bike Count during the first-ever two-day Ironman World Championships. We dig into the numbers.

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?

We look at what the top-10 men and women in Kona were wearing out on the run.