Triathlon 33 articles
Carbs Per Hour on the Bike: 90, 120 or More
Most amateurs who fade on the run simply ate too little on the bike. The numbers, the gut science, and how to train your carb tolerance.
The Long Run in IRONMAN Training: Why 3 Hours Is the Limit
The long run is the backbone of IRONMAN marathon prep, but most amateurs get it wrong. How long, how often, and why 3 hours is the ceiling.
Kona 2026: IRONMAN Rebuilds Its Qualification System
IRONMAN rolled back its new Kona qualification system after most performance-pool slots went to men. What changed for age-groupers in 2026.
Suunto Race 2 Gets Auto Transitions, With a Catch
A January software update gives the Suunto Race 2 automatic triathlon transitions, heart rate broadcast and swim drills, but a bug corrupts split data.
IRONMAN Frankfurt 2026: Norway Targets the Euro Crown
Casper Stornes and Gustav Iden take on IRONMAN Frankfurt while Kristian Blummenfelt heads to Roth, with Magnus Ditlev returning from illness.
FLOWBIO: A Sweat Sensor That Measures Sodium Live
A needle-free chest sensor tracks fluid and sodium loss in real time, validated in a peer-reviewed study. What it measures, and what it costs.
Negative Split: Why the Second Half Should Be Faster
Positive splits are how age groupers waste a good bike leg. The physiology behind negative splits, the T2 pacing trap, and three sessions that build the habit.
Durability: Why Your FTP Lies After Three Hours
A fresh FTP test means little three hours into a race. What durability is, why standard tests miss it, and how to train it with fatigued-legs intervals.
Polarised or Pyramidal: What 2026 Science Says on Zones
A 2026 research summary from Arturo Casado settles the debate: neither model wins outright, and periodised training beats picking one for the whole season.
AirPods Pro 3 and Strava: Ear Heart Rate vs a Chest Strap
Strava now reads heart rate from AirPods Pro 3. Testing shows it rivals a chest strap for steady efforts, with gaps at swimming and peak-intensity intervals.
How Much Does an Age-Grouper Really Train?
A 34,731-session TrainingPeaks study gives the first objective benchmark for weekly age-group training load, and the average is lower than most plans suggest.
Race Simulation Training: Kill Start-Line Nerves
A structured race-simulation session, run twice per build, removes the guesswork on race day by rehearsing the full swim-to-run sequence in advance.