What's the difference between an Est. 1 Rep Max and a 1 Rep Max?

For many weighted exercises, you'll see that you have an Estimated 1 Rep Max (Est. 1RM), a 1 Rep Max, and often several other Rep Maxes. Simply put:

Here's how each one works.

You'll find your Est. 1RM at the top of the Performance screen for an exercise.

Your Est. 1RM is what Peak Strength estimates you could lift for a single rep at maximum effort today. It's calculated by averaging your most recent logged sets for the exercise, along with your Starting Best while it's recent enough.

Each workout calculates an Est. 1RM from your best set for that exercise. Several factors affect that calculation:

Because of this, logging your sets accurately is what keeps your Est. 1RM accurate.

You might notice that variations of a core exercise like Clean or Back Squat show up in your history. Close variations of a core exercise can also factor into its Est. 1RM.

What does Est. 1RM affect?

Est. 1RM is your projected current ability, so Peak Strength uses it to set your Weight Suggestions for upcoming workouts. Because it adapts in real time to your most recent performances, your Weight Suggestions always reflect your current ability.

You can view all your Rep Maxes, including your 1 Rep Max, on the "My PRs" tab for the exercise.

A Rep Max is the highest weight you've ever logged for a given number of reps. Most exercises track a 1 Rep Max, and many also track Rep Maxes up to 5 or 10 reps. The rep counts tracked depend on how common it is to train that exercise at those rep counts.

You'll only earn a Rep Max if you log the exact number of reps for it.

Baseline vs Rep Max

The first time you perform a given rep count for an exercise, you set a Baseline for it. The next time you perform that same exercise at the same rep count and log a higher weight, you'll earn a Rep Max.

As you continue to hit new Rep Maxes, your previous ones stay visible in your history, with your current Rep Max highlighted and earlier ones shown in a muted style.

Unlike Est. 1RM, variations cannot set a Rep Max for another exercise. You have to perform the exact exercise to earn its Rep Max.

What do Rep Maxes affect?

Rep Maxes are personal achievements only. Unlike Est. 1RM, they don't affect your Weight Suggestions.

For more help on this topic:

If you have additional questions or need further help, contact us at support@peakstrength.app.