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Have some fun - and boost your top-end speed and power - with these higher-intensity efforts.

American Knibb looks to win her third 70.3 World Championship in a row, but a strong field of challengers won’t make it easy. Thorsten Radde breaks down the race and what it all means for the Ironman Pro Series.

Rotating locations and splitting the Ironman 70.3 World Championship race into two days was a risky move, but it's shaped the race into one of the most sought-after experiences in triathlon.

“As triathletes, we tend to turn inward and focus solely on our own health and fitness. But think about what else you can do with that kind of health."

Incorporate these three variations of the glute bridge to strengthen your gluteus maximus and add power to your stride.

The 70.3 - or half-iron triathlon - is one of the most popular distances in multisport. We cut through the numbers and pull out some of the best in the U.S.

In his middle-distance debut, American short-course star Morgan Pearson clinched his spot for next year's 70.3 World Championships, plus Belgium's Claire Michel closes out her career with a win in Indian Wells.

Authors of a new women's triathlon survey say that female participation in a race nearly doubles when the average race spends 1.5% more to address their needs. Read what they uncovered.

Set your upper back free and enjoy better results with these T-spine-targeting mobility drills.

Cycling indoors can be made much less horrifying by choosing the best fan for the job. Triathlete's complete guide to indoor cycling fans with our top picks.

Do you know your stroke count? This workout will help you get acquainted with this important metric.

We've seen some amazing performances on the 70.3 circuit this year, but who is the best of the best? Watch the battle play out on the free Ironman 70.3 World Championship livestream, available exclusively on Outside TV.

We dig into the first-ever tri bike from Decathlon’s house brand, Van Rysel - how does it ride, what does it bring to the table, and how does the XCR Tri compare to the competition?

Whether you’re looking for a guaranteed wetsuit-legal race or you’ve convinced your loved ones to take a 2025 race-cation, this guide to the best Ironman, iron-distance, and ultra iron-distance races has you covered.

We made our list and checked it twice! Our editors have scoured the multisport world to bring you the best triathlon gifts at every price point, for every style of triathlete.

Freestyle is important, but so is backstroke, breaststroke, and butterfly. Here’s how to improve your IM skills and became a stronger all-around swimmer.

The Wahoo Ace is a monster computer and a monster departure from a brand built on simplicity - how does this $600 device (that measures wind and has a bell?) work for triathletes?

Kick off your winter swimming with this gentle aerobic swim session.

Triathlon training is a balancing act, so consider these key aspects when you’re planning your rest and recovery days.

The otherwise ultra-premium brand Factor has launched a more affordable tri bike with integrated(ish) hydration, in-frame storage, and more. We tested it in the lava fields of Kona.

Tech advances in triathlon often don’t live up to the hype, but one has stood out as a measurable success: RaceRanger. What's next for the revolutionary anti-drafting system? Both its founder and Ironman have some bold ideas.

‘Tis the season to gear up for tri season. Score the best Cyber Monday deals on the gear you’ve been pining for with new updates from Atreyu, SciCon, Magic5, Wahoo Fitness, Roka, and more!

Sports nutrition expert Susan Kitchen explains why triathletes should focus on quality, not quantity, in their off-season nutrition.

Pro triathlete Laura Siddall breaks down the impact of 70.3 Western Australia results on the Ironman Pro Series standings, plus highlights the exciting finishes of Ironman 70.3 Bahrain, the Ultraman World Championships, and Patagonman.

Get an assist from the pull buoy in this recovery swim workout.

A seven-year collegiate streak comes to an end, an Olympian takes the helm of a new development team, and a major triathlon bike recall - catch up on what you may have missed in multisport for November 2024.

Get your body and brain buzzing with these bike intervals from pro Lisa Becharas.

We know rest is good. So why are triathletes so bad at it? A hard look at the underlying psychological factors that keep us training - even when we shouldn't.

"I average 20 to 24 hours weekly - not the 25 to 35 hours many pros do," said Matthews, who logged over 750 miles of racing in two hyper-competitive pro series'. She reveals how she did it.

Focusing on moving differently and improving overall athleticism can be a great way to play and come out of the off-season a more durable triathlete.

Pro triathlete Laura Siddall recaps Ironman Cozumel and Challenge Florianópolis and shares her thoughts on the latest pros to retire.

Avoid those knee and back injuries that can sideline your training. Nail these 11 yoga poses to stretch your tight hip muscles.

The penultimate race in the 2024 Ironman Pro Series is here! 2024's Ironman 70.3 Western Australia boasts the largest professional start list in the event’s 20-year history - here's who (and how) to watch.

Stop carrying your phone in your hand when you run—these packs, pouches, and pockets are safer and more comfortable

Get in the pool with your best training buddies and coach each other toward descending splits in this fast, fun swim workout.

One-off, experimental running shoes sometimes can come across as head-scratchers, but they play an important role in bringing new tech to the masses.

Between ages 6 and 13, it can be hard to find triathlon equipment, competitive races, and like-minded kids to train with - but that's changing. Youth coach (and tri dad) Eric Davidson lays out a guide for parents of young triathletes looking to make the most of this fast-growing segment of multisport.

Marriage, two kids and injuries during her return to racing stalled her first comeback. But now this pro sits atop the Ironman Pro Series.

The editors of Triathlete and Outside Run handpick their favorite triathlon deals from REI’s giant wintertime sale.

Enjoy hitting some short hill repeats and then maximizing tempo work on the flat in this run workout.

Scientists have developed a molecule that mimics the benefits of exercise. What does that mean for those of us who actually exercise?

Coros’ first AMOLED touchscreen watch is the best freshman effort we’ve seen, but does the Pace Pro stand out in the crowded smartwatch category?

Plan your time off wisely to gain the greatest benefits going into 2025.

Endurance athletes are taking beta-alanine supplements to boost performance and strength. Nutrition expert Scott Tindal explains the whys and hows of beta-alanine.

Plus, race results from Challenge Canberra and the Laguna Phuket Triathlon.

Updated results, standings, expert insight, and everything you need to know about the 2024 Professional Triathletes Organisation’s T100 Tour.

Looking to get away this winter? Here are three destinations with great training grounds.

Tri bikes are tricky beasts—something that looks simple to adjust can take hours. We break it down so you don’t have a breakdown.

This kitchen-sink workout has a little bit of everything, in 10 sets of 400, 300, or 200.

Editor-in-Chief Chris Foster makes the case that the best and most important piece of gear for triathletes is actually a cheap piece of plastic.

Most running shoe brands are selling shoes that exceed Ironman, Challenge Family, and USA Triathlon’s competition-legal standards. We weigh the pros and cons of training and racing with “illegal super-duper shoes.”

Both the women’s and men’s races at T100 Dubai have clear favorites, but with close standings, anything could still happen. Here are expert Thorsten Radde’s predictions.

Don't get lost in slow, steady miles - add some speed and power to your swim with this fast, fun swim set.

Disgruntled drivers can pose race-day risks to triathletes, while their voices could also influence future events. A psychology professor explains road rage and what athletes and organizers can do.

Get a band and get to work. These five simple exercises will keep you healthy and help improve your running performance.

Gutsy descents defined the 2024 women's Ironman World Championship in Nice, but everyday triathletes can get free seconds (or minutes) by practicing some key handling skills. Read how.

The sight of a new mom breastfeeding during the run leg of a triathlon might become less rare than it used to be. But it can be even more complicated than it looks. Our guide explains.

Getting on and off your bike—seems simple enough. But on race day, a well-executed mount and dismount plan can mean the difference between an awkward (and slow) transition or a smooth (and speedy) one.

Kilian Jornet, largely considered the greatest trail and ultrarunner of all time, has picked up cycling. What would happen if he added. Just. One. More. Sport.

Practicing yoga for lower back isn't just about stretching for pain relief. It's about strengthening for pain prevention.

What do Norwegian triathletes Kristian Blummenfelt and Gustav Iden have in common with a 1.5 kilometer-long filament? On's newest "spray on" super shoes - the staggeringly expensive $330 Cloudboom Strike LS.

Designating a time instead of a distance for a set lets everyone swim together—and rest at the same time so you won’t miss any gossip.

We give seven quick tips on how to extend the life of your precious-but-disposable investment and four of our run editors' favorite picks for replacements in 2023.

The T100 triathlon tour saved the best for last. Here's everything you need to know about the T100 grand final in Dubai, from start lists to a link for the free livestream on Outside Watch.

We don’t yet know all the effects of carbon-plated super shoes, but coaches agree on some key principles when using them in training

DeRue has had "exciting" conversations with athletes, politicians, and community members about the Ironman World Championships - but where will they lead?

Dr. Jeffrey Sankoff looks at a new study that looks at static stretching versus foam rolling for flexibility.

This run workout is designed to help athletes build strength and speed and get comfortable with cadence control and pace changes.

Now on the shelves at Apple Stores nationwide, these smart swim goggles are going mainstream. We pool swim and open-water swim to test the newest updates of Form’s unique heads-up display goggles, the Smart Swim 2.

Snorkels, fins, pull buoys—we love to use them, but it's important to make them really work for you.

Laura Siddall recaps a thrilling finale to a thrilling Supertri series in Neom and looks at why Ashleigh Gentle is the Queen of the Noosa Triathlon.

The series formerly known as Super League Triathlon has a new name, new locations, and new excitement for 2024. Get updated results, standings, expert insights, and everything you need to know about the Supertri race series.

Whatever kind of strength training you practice, these stretches can help prevent aches and pains.

How do you prepare for a record-breaking six-day run? If you're Matthieu Bonne, you clock a record-breaking continuous swim followed by a record-breaking seven-day bike.

Here’s a simple recovery swim, which is great for recouping from a tough race or virtual effort.

Experienced triathletes know it’s a good idea to have a small quiver of different swim goggles for different situations. We break down what to wear and when.

A new World Triathlon president, an Ironman (CEO) PR, and the tri gear set to appear on Apple Store shelves - catch up what you may have missed in multisport in October 2024.

Seven-time IMAZ finisher and local Roy Hichens shares an insider look at the course and destination for age groupers racing Ironman Arizona—everything from training locations and gear choices to pacing strategy—so that you can have your best race weekend experience at this popular desert race.

Success stories from Laura Philipp, Nikki Bartlett, and Matt Hanson are held up as evidence that any age-grouper could become a top pro with enough training. But is that really the case?

A look at the bikes ridden by the ten fastest cyclists in the men’s pro race at the 2024 Ironman World Championships in Kona, Hawaii.

This spooktacular dynamic stretching set will get you ready to hunt vampires, outrun zombies, or anything else your Halloween workout might throw at you.

What did age groupers think about when the going got tough in Kona? (Grab a box of tissues for this one.)

21 year-old Sam Askey-Doran broke the Ironman World Championship Kona swim course record this year - and it's all because of an unlikely friendship with pro triathlete Cam Wurf.

Nike was the shoe count champion at the front of the men’s race, while Patrick Lange was the fastest runner of the day wearing a pair of Adidas Adizero Adios Pro EVO 1 at the 2024 Ironman World Championship in Kona.

There's no denying that hitting up the flat cola table at an Ironman has its advantages for some athletes - but be smart about when and how you drink up.

12 of the 54 pro men who started did not finish at last weekend's 2024 Ironman World Championship Kona. From jellyfish to bike crashes, find out what happened to DNF athletes like Gustav Iden, Trevor Foley, and more.

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

Like never before, the 2024 Ironman World Championship saw pros taking huge risks on tech, nutrition, pacing, and even chainring size: But just like always, big risk can carry big consequences.

The 2024 Ironman World Championship in Kona was one of the fastest, most exciting, and unpredictable races ever. Check out the moments that mattered with original photography from Brad Kaminski.

"Call us masochists, I suppose. But boy, do we love to do hard things."