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Train with your head.
Guides, data and tips for athletes who really want to understand what they're doing.
TriathlonFeatured
Triathlon distances: Sprint, Olympic, 70.3 and Ironman compared
Every triathlon distance in one clear table: swim, bike, run, average times and how to pick the right race.
Aug 3, 2026·7 min read
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TriathlonHow to start triathlon: the complete beginner's guide
Swim, bike and run in one sport. Here's how to structure your first 8 weeks injury-free.
Jul 12, 20266 min read
CyclingFTP: what it is, how to measure it and why it changes everything
Functional Threshold Power is the number that drives every serious cycling session. Practical guide.
Jul 5, 20268 min read
RunningHeart rate zones: train smarter, not more
One Z2 workout is worth more than ten random hard runs. Here's why — and how to apply it.
Jun 28, 20265 min read