“This sport makes us vulnerable. We cry in private after a bad race, we sweat alone in our basements during tough training sessions. ... Sharing that journey with friends is so important.”
The first full-distance race of the Ironman Pro Series is here! Here’s who (and how) to watch the action on the free Ironman South Africa livestream.
Triathlon training might just be the ticket to staying mentally sharp as you age. Dr. Daya Grant explains how swim-bike-run workouts now could reduce the risk of Alzheimer’s, Parkinson’s, dementia, and age-related cognitive decline in the future.
USA Triathlon CEO Vic Brumfield's candid interview on a (surprisingly) growing younger demographic, vanishing local races, a historic American Olympics, a shifting collegiate strategy, and more.
For those seeking the ultimate triathlon test (and maybe a touch of masochism) these events currently stand as the pinnacle of endurance sports.
Pro triathletes face rising costs if they want to race the Ironman Pro Series in 2025 - but what does the $1,500 Ironman pro membership fee really buy, and is it worth it?
The Ironman Pro Series kicks off its 2025 season with fast-and-furious racing in Australia - here’s who (and how) to watch the action on the 70.3 Geelong livestream.
A Kona decision? Back-to-back sprint finishes? As the 2025 triathlon season revs up, our editors and contributors gaze into the crystal ball and tell us what they see.
The unconventional and irreverent Ryan Willis is using his triathlon background in a quest to win $250,000 on Fox’s new survival show.
Triathlon training is good for the heart - until it’s not. Scientists explain how too much endurance training can permanently alter the structure and function of heart, leading to potentially dangerous health issues.
The middle-distance specialist and 2016 70.3 world champion says the challenges of pregnancy and breastfeeding gave her clarity on her next triathlon goal: to qualify for the Ironman World Championship in Kona.
Laura Siddall breaks down eight pro triathletes whose stock is about to take a huge jump in 2025. Learn more about who is on the cusp of a big breakthrough - before it happens.
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.
An investigation by the International Testing Agency has found the Swiss triathlete’s positive sample for Ligandrol was “due to inadvertent contamination through intimate contact.” Her post-test 2024 70.3 Ironman World Championship result will stand.
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.
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.
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.
"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.
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.
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.
Exploring the future of flexibility in triathlon events post-COVID.
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.
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.
Changes include new categorization for age-group athletes and requirements for elite transgender women to participate in academic research.
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.
Test your triathlon history knowledge (or just get a massive nostalgia bomb) with this look at historic and modern-day triathlon photos.
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.
More sprint finishes, less swim cancellations, please.
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.
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.
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.
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.
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.
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.
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.
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.
2024 was a particularly bittersweet year that saw some of the sport’s very best announce their departure from the pro triathlon ranks.
Triathlon spectators help bring the fun and encouragement to our otherwise-painful moments. And once a year, they get their own moment to shine in the best spectator photos of the year.
If a picture is worth a thousand words, then a great picture is worth a million. Check out the 2024 triathlon season through the eyes of our sport's finest photographers.
The Ironman 70.3 World Championship was an entertaining display of athleticism. And with $2,575,000 on the line in the Pro Series, the pros had big reasons to give it their all.
Updated results, standings, expert insight, and everything you need to know about the Ironman Pro triathlon race series.
The 30-year-old Paris Olympian overcame a disappointing short-course season to win the 2024 70.3 World Championship with a late-race surge.
The 26-year-old American unleashed yet another dominant performance on the global stage, while second-place Kat Matthews secured the required points for the overall Ironman Pro Series win.
”I don't know what people expect of me, but I am just going to try and finish the year on a high. It has been a super long year, and I'm a little bit unsure - I could do super well or I could be out the ***,” top contender Ashleigh Gentle told the audience in Taupo.
Also: What the heck is a cyclor, and why would a triathlete be so good at it?
Looking to unleash your short-course speed in 2025? Take on one of these top sprint or Olympic races in the U.S. - there's something for everyone!
A returning champion and some very dangerous short-course talent makes the men’s race at the 2024 Ironman 70.3 World Championship almost anyone’s game. Thorsten Radde talks about the contenders and how the Ironman Pro Series could play out.
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."
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.
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.
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.
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.
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.
"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.
Pro triathlete Laura Siddall recaps Ironman Cozumel and Challenge Florianópolis and shares her thoughts on the latest pros to retire.
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.
Marriage, two kids and injuries during her return to racing stalled her first comeback. But now this pro sits atop the Ironman Pro Series.
Scientists have developed a molecule that mimics the benefits of exercise. What does that mean for those of us who actually exercise?
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.
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.
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.
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.
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.
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.
DeRue has had "exciting" conversations with athletes, politicians, and community members about the Ironman World Championships - but where will they lead?
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.