What's the Difference Between a Training Log and a Training Journal?

Athletes use the terms "training log" and "training journal" interchangeably, but they're actually different tools that serve different purposes. Understanding the difference helps you decide what you need, or whether you need both.

What a training log does

A training log records what you did. Sets, reps, weights, distances, times, duration, heart rate zones. It's quantitative and objective. The point is to have a record of your training volume and intensity so you can track progression, manage load, and look back at what you've done over weeks and months.

Training logs are great for answering questions like: How much did I train this week? Is my volume increasing? What was my best squat session last month? They give you the numbers.

Most fitness apps are essentially training logs. They capture the data and show you charts.

What a training journal does

A training journal captures what you learned. How the session felt, what went well, what broke down, what you want to focus on next time. It's qualitative and reflective. The point is to extract meaning from your training so that each session informs the next one.

Training journals are great for answering questions like: Why are my Tuesday sessions always rough? What technical cues actually help me under pressure? What conditions produce my best performances? They give you the insight.

Pure journaling apps or blank notebooks serve this function, but most athletes quit them quickly because blank pages are hard to fill consistently. If you're weighing options, this guide to the best training journal for athletes breaks down what makes one stick.

Why you want both

A training log without reflection is just a spreadsheet. You know what you did, but you don't know what you learned. Over time, you accumulate data without understanding.

A training journal without data is just a diary. You capture your thoughts, but you can't connect them to objective training trends. Your reflections float without context.

The combination is where the real value lives. When you can see that your best reflections consistently line up with specific load patterns or readiness states, you start making much smarter training decisions. You're not guessing anymore. You have both the numbers and the narrative.

How to combine them in practice

You don't need two separate systems. After each session, capture a few numbers (duration, effort, session quality) alongside a few words (what worked, what to adjust, intention for next time). That's a training log and a training journal in one entry, and it takes under two minutes.

One system for both

A notebook can handle this if you're consistent. If you want a single app that combines training load tracking with structured reflection and uses AI to find patterns across both, Sherpa is a free app built to be both your training log and your training journal in one place.