Training Plan Library
Evidence-backed training notes, gear deep dives, and lab-tested guidance for runners who like the details.
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Understanding Training Load: ATL, CTL, TSB Explained
Learn how to measure and manage training load using ATL, CTL, and TSB metrics. Understand the fitness-fatigue model for smarter training decisions.
Heart Rate Data Troubleshooting: When the Numbers Don't Make Sense
Your heart rate data looks wrong. Is it the sensor, or is something else going on? Learn to troubleshoot HR issues and understand what abnormal readings mean.
Age Grading for Runners: Understanding Your Age-Adjusted Performance
How does your running compare to others your age? Age grading lets you see your true performance level regardless of birthdays. Here's how it works.
Analyzing Race Results: What Your Splits Tell You
Learn how to analyze your race performance beyond the finish time. Decode your splits to understand pacing, identify weaknesses, and plan better future races.
Why Every Runner Needs a Training Log (And How to Use One)
Discover why keeping a running log is essential for improvement. Learn what to track, how to review your data, and how to turn insights into better training.
Using Strava for Training: Beyond the Kudos
Strava is more than a social network. Learn how to use Strava's training features, route planning, and analytics to actually improve your running.
Why Your Running Data Varies Day to Day (And When to Care)
Yesterday's easy pace feels impossible today. Is something wrong? Learn why running data naturally varies and when variation signals a real problem.
Running by Feel: How to Train Without a Watch
Learn to run by perceived effort, not GPS pace. Develop your internal sense of effort for smarter training and more enjoyable running.
Tracking Running Progress: Key Metrics That Actually Matter
What should you track as a runner? Learn which metrics provide actionable insights versus vanity numbers, and how to use data for improvement.
Heart Rate Variability (HRV) for Runners: What It Means and How to Use It
Demystify HRV. Learn what heart rate variability actually measures, how to interpret it, and whether it should influence your training decisions.