Most workout logs die in one of two ways. Either they are so minimal that six months later you cannot tell what you actually did, or they are so detailed that logging becomes a chore and you stop after three weeks. A useful log sits in between: fast enough to fill in between sets, detailed enough to answer real questions later.
Here is what to record, what to skip, and how to make the data pay off.
What a log is for
Before deciding on fields, be clear on the questions you want answered. A good workout log should tell you, at a glance:
- Did I do more than last time on this exercise?
- Is this lift trending up, flat or down over the last two or three months?
- How often am I actually training, and where are the gaps?
- What was going on when things went well, or badly?
Every field in your log should help answer one of these. If it does not, it probably does not belong.
The essential fields
For each exercise:
- Exercise name, always the same one. “Bench press”, “BP” and “flat bench” are three different exercises to a spreadsheet. Pick one name and stick to it.
- Weight per set. Including warm-ups if you want, but mark which sets are working sets.
- Reps per set. Every set, not just the first. The drop-off across sets is information.
- Effort. Reps in reserve (RIR) or RPE, at least on the last set. It is what makes two sessions with the same numbers comparable. See progressive overload, explained.
For each session:
- Date. Obviously, but also what makes frequency and gaps visible.
- Duration. Useful for spotting sessions that are creeping longer.
The fields that are worth it sometimes
- Short notes. One line, only when something is different: new machine, different grip, a pause, slept badly, gym was packed. These notes are what explain the weird data points six months later.
- Equipment variation. Barbell, dumbbell, Smith machine and cable versions of a movement are not interchangeable. Tag them if you use more than one.
- Rest times, only if you are deliberately working on them.
The fields that waste your time
- Estimated calories from the session. Rough at best and not useful for training decisions.
- Mood ratings for every set. Nobody reads them back.
- Long written reflections after every session. Good for a journal, bad for a log you need to fill in quickly.
- Exact tempo on every exercise, unless tempo is the specific thing you are training.
If logging a set takes longer than resting, the log will not last. Speed is a feature.
Keeping it fast
- Log during the session, not after. Memory is worse than you think, especially for rep counts on later sets.
- Start from last time. The best logs pre-fill the previous session’s numbers so you only change what is different.
- Use routines. Save your usual sessions as templates so you are not typing exercise names every time.
- Log from wherever is easiest. Phone, watch, whatever keeps friction lowest.
Making the data useful later
A log only pays off when you look at it. Three views do most of the work:
Session against session
Line up today’s session against the previous one of the same routine, set by set. It answers the only question that matters in the moment: did I do a little more?
Progression over time
For each main lift, a chart of weight (or estimated strength) over months. It is the difference between “I feel stuck” and “I added 7 kg since March, slower in summer”. For comparing different rep counts, a common estimate is the Epley formula: weight × (1 + reps / 30). It is an approximation, but a consistent one, which is what you need for trends.
Frequency and gaps
A calendar or heatmap of sessions. It shows consistency more honestly than anything else, and it makes plateaus easier to explain: many stalls turn out to be months with half the usual training.
How Organizr handles it
The Workout section in Organizr is built around exactly these views. Each session is compared with the previous one of the same routine, with the difference in kilos, reps and volume per set. Each exercise has a progression chart with filters by muscle group or equipment. A yearly heatmap shows every session, darker for longer ones. If you already log in Hevy, you can import your full history and keep syncing it, and Apple Watch workouts land in the same place.
You can also log manually, with no integration at all. What matters is having one log, not five partial ones.
The short version
- Record exercise, weight, reps and effort for every set. Keep names consistent.
- Add short notes only when something is different.
- Skip fields you will never read back.
- Keep logging fast: pre-fill from last time and use routines.
- Review three views: session vs session, progression over time, frequency.