A Personal Record Is Not Just "Heavier"
Ask most lifters what a PR means and they'll say "lifting more weight than before." That's one legitimate kind of record, but it's not the only one. A set of 8 reps at a slightly lower weight than your previous best single can represent real strength progress too — and a lot of programs specifically target rep PRs rather than pure max weight. Tracking only the heaviest number you've ever lifted misses these other, equally real forms of progress.
Why Estimated One-Rep Max Matters
Most lifters don't test a true 1-rep max often — it's fatiguing and not always necessary for tracking progress. Instead, an estimated 1RM formula lets you compare a heavy set of 5 reps to a lighter set of 10 reps on the same scale. The Epley formula, one of the most widely used, estimates it as weight multiplied by (1 + reps/30). It's an estimate, not a lab measurement, but it's consistent enough to spot real trends across weeks of training, even when your rep ranges vary session to session.
Comparing Sets That Aren't the Same Rep Range
Say you lifted 185 lbs for 5 reps last month, and today you hit 175 lbs for 8 reps. Which is the better set? Using Epley's formula: 185 x (1 + 5/30) ≈ 215.8 estimated max, versus 175 x (1 + 8/30) ≈ 221.7. The second set, despite using less weight, actually represents slightly more estimated strength. Without a formula like this, it's easy to dismiss a lighter, higher-rep set as "not a PR" when it may represent real progress.
Why Tracking History Matters as Much as the Record
- A PR alert is only useful with context. Knowing you hit a new max weight matters less than seeing the trend of sets leading up to it.
- Plateaus are visible in a log, invisible in memory. A written history shows a six-week plateau clearly; memory tends to round it up to "still making progress."
- Multiple PR types catch different kinds of stalling. You might be stuck on max weight but still climbing on rep endurance, or vice versa — tracking both shows the full picture.
- Independent tracking per exercise avoids false comparisons. A bench press PR and a squat PR aren't on the same scale, and shouldn't be lumped into one number.
Bottom Line
A real PR tracker needs to catch more than just "heaviest weight ever." Tracking max weight, max reps, and an Epley-based estimated 1RM side by side — per exercise, over time — gives a far more honest picture of whether you're actually getting stronger.
Frequently Asked Questions
Yes — Workout Personal Record (PR) Tracker logs your sets and automatically flags and celebrates any new PR for heaviest weight, most reps, or best estimated 1RM. It's a one-time $5.99 purchase — no subscription, no account required.
It uses the Epley formula, one of the most common 1RM estimation methods: 1RM = weight x (1 + reps / 30). This lets it compare sets across different rep ranges on a consistent scale.
Yes — add as many exercises as you want, and each keeps its own completely independent set history and PR records.
Any logged set that beats your previous best for that exercise in heaviest weight, most reps in a single set, or best estimated 1RM triggers a PR flag — a set can even trigger more than one PR type at once.
Yes, everything is saved automatically to your browser's local storage so your full history is there the next time you open the tool.