Running after riding a bike is much different from running on fresh legs. Learn about the physiology of running vs. triathlon running, plus how to estimate your triathlon run time.

Honey is an excellent natural energy source for triathletes, providing carbohydrates, antioxidants, and anti-inflammatory compounds that aid performance and recovery. But to get the most benefit, you’ve got to use it the right way.

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.

Editor-in-chief Chris Foster hands-on reviews five of the top smartwatches of 2025 and breaks them down by price, specs, and an eight-point rating system.

Protein might be all the rage, but carbs are still an endurance athlete’s best friend. Yet, new research shows that it’s likely you’re not taking enough on board to maximize recovery.

Find a friend and complete this unique swim workout for triathletes that involves sitting on a kickboard while using a breaststroke pulling motion with your arms.

Ramp up your VO2 max, anaerobic capacity, and neuromuscular power - and have fun while you're doing it.

From finish-line highs to post-race lows, a triathlete’s mind, body, and spirit takes quite the rollercoaster ride at the end of the season. Dr. Daya Grant explains the science behind the slump - and how to cope.

This year's 70.3 worlds will feature an all-star lineup, including Taylor Knibb, Lucy Charles-Barclay, Kristian Blummenfelt, and more. See the full start list and race numbers for the women's and men's pro races, plus how to watch the free livestream on Outside TV.

From Lucy to Rudy, these pro triathletes share their hard-earned, unfiltered wisdom on life, training, and the need for warm clothes.