There are countless varieties of protein powders for endurance athletes - but which ones are the best? We shake them all up in our review of taste, nutritional quality, and more.
The return of the Malibu Triathlon, the triathlete who won the “Athletes' Athlete of the Year” award, and Supertri goes all-in on age-groupers - catch up on what you may have missed in multisport for February 2025.
The International Testing Agency has announced that Simmonds has tested positive for Ligandrol, a banned substance, which she claims was caused by exposure through “intimate relations” with her partner.
Tim Heming speaks to athletes, agents, brands, and more to uncover one of the most taboo subjects in professional triathlon: sponsorship.
The organization’s new rules follow World Triathlon’s efforts to crack down on runaway hydration systems and aerobar extensions, while reducing drafting penalties - among other changes.
Spending thousands of dollars on a triathlon bike can be a stressful endeavor, can Apple’s AirTags (or similar tracking product) help provide peace of mind? The truth isn’t as simple as you’d think.
New research uncovers calorie and carbohydrate counts in some popular sports nutrition products are coming up short - and secret ingredients are flying under the radar. Registered Dietitian Matthew Kadey explains what that means for your fueling.
Rate of perceived exertion (RPE) can be useful to subjectively measure your effort.
Anti-drafting technology made its age-group racing debut at Challenge Wanaka - is your local race next? We chat with RaceRanger CEO James Elvery about what’s ahead.
Not sleeping? It might be because of what you’re not eating.
As a thank-you for making us a part of your multisport journey next season, we’ve broken down our favorite tri-related Outside+ member perks for this year.
Race, recover, and relax - all in one epic getaway. Triathlon travel experts share how to plan, where to stay, and how to extend your one-day race into a stress-free race-cation.
"I am Black. I'm from the Caribbean. I am five foot two. I'm plus size. I don’t present as a ‘triathlete.’ But I hope others see me and believe it’s doable."
A growing number of elite athletes and bike designers swear by the aerodynamic benefits of stacking multiple bottles between their arms. We dove deep – and conducted our own DIY testing – in search of answers.
Youth triathlon experts share what's required, what's optional, and what to skip altogether. Plus, how to save money on youth triathlon gear.
The 2025 professional triathlete season is officially underway. Laura Siddall explains what to watch in 2025 and analyzes the World Triathlon Championship Series in Abu Dhabi.
Gear up for the season with these President's Day sales for triathletes.
Models from Asics, New Balance, Hoka, and more have been listed as “prohibited” by Ironman for the 2025 season. Ironman head referee Jimmy Riccitello explains why.
Love looks a little different when you’re a triathlete. From amped-up texts to post-race snacks, these are the ways we know our partners really love us.
With fewer simple options now available for triathletes, we look at the best ways to travel with your triathlon bike, based on your needs.
The right pair of bike pedals can give an increase in pedaling efficiency and power, but the wrong pair can lead to injury, decreased performance, and more.
Exploring the future of flexibility in triathlon events post-COVID.
The 133-page patent filed today shows Nike could be interested in putting valves, fluid, buttons, and “electronic communication features” in future shoes to control the level of support.
What do you do when your first race of the season hits in spring? Pros and coaches share their advice for ramping up early for events like 70.3 Oceanside or Ironman Texas.
What’s the secret behind Russ Callen’s 50-year streak in a small, unconventional triathlon? He’s just having fun with friends.
Researchers analyzed 710 runners and monitored their injuries. They found that one shoe type has a higher running-related injury correlation.
Dr. Jeffrey Sankoff discusses why fitness trumps weight loss when it comes to longevity.
Course cutoff times don’t have to make you nervous or be a race-day distraction. Here’s how to calculate, train and prepare for the run course cutoff.
An enlightening new study revealed just how prevalent the toxic class of PFAS compounds are in smartwatch wristbands. Here’s what triathletes need to know.
Hours upon hours of movies, shows, and short films await on Outside TV - start streaming and actually enjoy your trainer and treadmill time this winter.
Experienced triathletes share their best triathlon advice for beginners or new athletes of any age or ability. Learn their 14 tips.
Testing professional and age-group triathletes for banned substances is important to protect the integrity of racing, but it ain’t cheap. We dug into the financial investment it takes to keep the sport clean.
And they take just minutes.
Triathletes don’t always need to see their M.D. to stay healthy. Dr. Jeffrey Sankoff explains when other experts might be a better fit for health- and training-related concerns.
From a new feature in a popular triathlon smartwatch to a massager for post-training soreness, here's the triathlon gear our editors loved in January 2025.
Changes include new categorization for age-group athletes and requirements for elite transgender women to participate in academic research.
Consumption of ultra-processed foods has been linked to a multitude of health concerns - does that mean we should swap out gels and chews for all-natural sports nutrition?
As winter drags on (and on and on…) triathlon clubs are training together to hit the ground running once spring rolls around.
T100 inks five-year deal for championship host city, a new documentary showcases trailblazing women in triathlon, and an eye-popping Morgan Pearson PR - catch up on what you may have missed in multisport for January 2025.
The Garmin Instinct line has been known for its infamously infinite battery life, but how does an AMOLED screen add function while significantly impacting the time between charges? With the Instinct 3, it's complicated.
Update: Garmin says it has fixed the underlying issue, but there are still steps that affected users have to follow (and they're not simple in every case). Read more.
Nervous about race cutoff times for your first triathlon or stepping up in distance? A triathlon coach explains how to prepare for the bike leg, ensuring less stress about course cutoff times.
There are plenty of energy bars out there - but which are the best for endurance athletes? A sports dietitian ranks the best bars by taste, nutrition, cost, and more.
A new study finds athletes with higher vitamin D levels are stronger, but the big picture remains murky.
Aligning your training cycle with your menstrual cycle could have performance benefits. A sports physiology researcher weighs in.
Do you hate sliding around on your outdoor winter runs? Take a look at one of these four running shoe spike options that'll ensure you grip - not slip.
You’re already spending a lot of time on the trainer and treadmill - might as well learn a thing or two from these triathlon podcasts.
Test your triathlon history knowledge (or just get a massive nostalgia bomb) with this look at historic and modern-day triathlon photos.
Looking to trim food costs? You’re not alone. These Costco staples help athletes eat better and save money at the same time.
Triathlete’s guide to the best smart trainers that help you get fit and stay fit all winter long. We personally test and rate our top picks based on criteria like ride feel, power accuracy, ERG mode capabilities, and more.
Using a hyper-detailed approach, Olav Bu and his superhuman Norwegian charges, Gustav Iden and Kristian Blummenfelt, are upending everything we know about fueling.
Taylor Knibb, Sam Laidlow, and Rudy Von Berg are three of today’s top pro triathletes who have triathlon performance literally in their blood. We speak to their triathlete parents to learn what works.
Plus a PT-designed strength plan to improve your performance and stability
A quality smart trainer for $400? We test out the new budget-friendly JetBlack Victory.
Studies show BCAAs can increase muscle growth and reduce soreness. But what exactly are BCAAs, and should you be taking supplements to make you a better athlete?
More sprint finishes, less swim cancellations, please.
Knowing how to sight while open-water swimming will help you stay on course. Here's how to practice sighting before race day.
With a nearly 30% increase in prize money for pro triathletes in 2024, Thorsten Radde crunches the numbers to see who took home the big share of the $16 million USD up for grabs.
Don’t stress about triathlon swim cutoffs. Take control of your race-day destiny with these tips, test sets, and workouts from coach Andrew Sheaff.
You might not be replacing your sports bra as often as you should for optimal performance. Here’s how to know it’s time to buy a new one.
The beloved “Woodstock of triathlon” is attempting an against-all-odds comeback after a painful five-year hiatus and tumultuous recent history. It’s a bellwether moment for the sport’s grassroots race scene.
Thirty members of the particularly hard-hit Pacific Palisades-based Tower 26 triathlon group have already lost their homes. We speak to triathletes and coaches displaced and evacuated by the LA wildfires.
Are you more likely to get injured on a treadmill? Yes - but not for the reasons you might think.
With new models from Adidas, Brooks, Hoka, On, and Saucony, this year looks to usher in a new era of super-fast, super-light running shoes. Run's editor-in-chief breaks down what to lust for in 2025.
After making headlines at the Tour De France last year, carbon monoxide supplementation is under the microscope. Emergency room physician and triathlete Dr. Jeff Sankoff sheds light on this risky practice.
These are the six best men's and women's hats and gloves for any triathlete trying to get in their winter running miles outside.
Your body runs on a lot of different fuels in a lot of different ways. Performance nutrition expert and Fuelin co-founder Scott Tindal explains how to achieve max fat oxidation while still consuming carbohydrates in training.
The much-hyped offering from the Professional Triathletes Organization delivered seven races and a big chunk of cash to some of the biggest names in the sport in 2024. We present Tim Heming’s seven-point end-of-year assessment before the PTO fires it up again in 2025.
A cruise-ship triathlon adventure with cheetahs? A nighttime race under the stars? A reverse tri? We can’t click the “register” button fast enough for these out-of-the-box multisport events.
The massive weight drops triggered by semaglutide weight-loss medications like Ozempic and Wegovy have raised questions about fairness in competition and safety in training - should triathletes be worried?
It’s the age-old question for long-course triathletes: Why doesn’t my half-Ironman PR always sync up with my Ironman expectations? We get some real answers from two data experts and a coach.
The 2025 pro triathlon race schedule promises more exciting competitions and matchups. Here’s when and how to watch the best in our sport.
It doesn't matter whether you occasionally pick up a dumbbell or adhere to a strict weightlifting routine, triathletes who strength train need yoga.
With very little competition on the horizon for many North American triathletes, virtual bike racing could be a great alternative. We break down why, what you need, and how to avoid too much of a good thing.
Should you bunk with relatives when racing out of town? Is that continental hotel breakfast worth the price? A triathlon travel booking expert offers unique insights for unique travelers.
Data scientist Alfredo Molinas looks at piles of 2024 Ironman finisher data to unveil the fastest and slowest Ironman races of 2024.
Looking for a shiny new PR (or a world championship slot)? We’ve crunched the data to find the fastest and slowest 70.3 races held in 2024.
Who says you have to slow down as you age up? These athletes in their 50s and 60s share 10 real tips that helped them set PRs in long-course triathlon - even after decades of racing.
Whether you're an Ironman triathlete or an occasional around-the-block runner, these stretches will help reduce and prevent pain.
The truth behind the AI-triathlon coach relationship is actually much more complicated than you’d think. We speak to those on the front lines of “the battle for the soul of triathlon coaching.”
Whether it’s racing in a waterpark or scoring a root beer award at the finish line, these youth triathlon races are a fun way to get started in multisport competition.
Wondering what you missed for triathlon stories in 2024? We recap the 12 most-read stories so you can catch up before the new year.
Records were broken, new careers were launched, and legends retired. Expert triathlon analyst Thorsten Radde rates the top pro performances in triathlon for 2024.
From the shocking and scandalous to the inspiring and history-making, these are the 24 news headlines that mattered to the sport of triathlon in 2024.
Looking for a low-pressure, fun, and friendly way to dip your toes into the multisport world? Check out our guide to the best triathlons for beginners in 2025.
Build some speed with this workout from Sara McLarty, which incorporates short (but intense!) sprints.
It was a record-breaking year in pro triathlon (but not every race was record-breaking) - we look back at both the fastest and slowest pro events in 2024.
We've been testing triathlon gear all year. Now, we round up the best products for racing and training in 12 categories.
With worldwide events for every type of athlete, this race series has set the standard for more than two decades
2024 was a particularly bittersweet year that saw some of the sport’s very best announce their departure from the pro triathlon ranks.