In this episode, we guide you through a 40-minute Zone 2 calibration run designed to help you train smarter and finally understand your endurance zones.

If you’ve ever wondered whether your “easy run” is actually easy, or if your watch zones are accurate, this episode walks you through a structured workout to help you find your true Zone 2 effort, the foundation of endurance performance.

You’ll start with a 10-minute warm-up before settling into a 30-minute steady Zone 2 run with real-time coaching cues to help you stay relaxed, controlled, and aerobic.

After the workout, we break down how to analyze your heart rate data, check for cardiac drift, and adjust your training zones so your numbers align with how your body actually performs. You’ll also learn how to use the talk test and simple calculations to update your zones on platforms like Garmin, Apple watches, and TrainingPeaks.

This episode is perfect for runners, triathletes, and HYROX athletes who want to build a stronger aerobic engine, improve recovery between hard efforts, and make their training data more meaningful.

Because the strongest endurance athletes aren’t guessing their effort—they’re training with intention.