Heat can reduce your power output long before it becomes a health risk. Understanding what happens to thermoregulation, heart rate and cycling efficiency helps you separate performance loss from genuine danger, interpret your training data more accurately and adjust each summer session with a clear purpose.
Intervals.icu is a highly complete platform for analysing, planning and monitoring endurance training. It allows you to centralise activities, track training load, review your power curve, detect progress, create structured workouts and connect data from devices such as Garmin, Wahoo, COROS, Suunto, Polar or Strava. This guide explains how to set it up from scratch, which settings to review first, how to interpret its main metrics and how to use it with better judgment to make smarter training decisions.
Liège-Bastogne-Liège resembles a very long medium-mountain stage more than a traditional classic. Its mix of short climbs and relentless rolling terrain creates significant fatigue over more than six hours of racing. As a result, winners are not pure power riders but athletes with high durability, strong VO2max, high FTP and excellent watts per kilo in 2 to 10 minute efforts. This article analyses the route, elevation density and recent winners to explain why Liège favours fast climbers and light all-rounders.
Paris-Roubaix is often described as a classic of brute strength, but that reading falls short. This race does not reward only the rider with the biggest engine, but the one who is best able to maintain performance as the terrain, the bike, positioning, and the chaos steadily erode their chances. The article’s thesis is simple: Roubaix is not just a test of absolute watts, but a combination of sustained power, resistance to fatigue, robustness, technique, tactics, and a bit of luck.
The Tour of Flanders is one of the most demanding races in the cycling calendar, where victory does not go to the rider with the best fresh numbers, but to the one who best withstands accumulated fatigue. This analysis breaks down the key performance factors that truly decide the race: repeated high-intensity efforts, cobbled technique, positioning, nutrition and decision-making under pressure. Through key climbs and recent examples like the 2025 Kwaremont, it becomes clear that Flanders is not a test of isolated power, but of performance under extreme fatigue.
Milano-Sanremo 2026 is arguably the fairest race of the year because it offers realistic winning paths to very different physiological and tactical rider profiles: pure sprinters, Classics specialists, puncheurs, climbers with elite descending skills, and powerful rouleurs. This article explains why the course remains so unique, what recent winners tell us, and which race scenarios best suit the main favourites for 2026.