How does Mekimeki decide that a set is a personal record?

Mekimeki tracks three kinds of record for each exercise — heaviest weight, most reps, and highest estimated 1RM — and marks a set only when it wins both comparisons: it must be the best set of that kind in the current session, and it must beat the best you have ever logged for that exercise. At most one set per session can hold each kind of record. Warm-up sets and sets you did not mark done are excluded from both sides of the comparison.

The rule

Kinds of record Three, tracked separately: weight, reps, and estimated 1RM.
First test The set must be the best of its kind within the current session. Weight ties are broken by more reps; rep ties by heavier weight.
Second test It must strictly beat the best qualifying set across all your previous sessions for that exercise.
Eligible sets Marked done and not a warm-up, on both sides of the comparison.
First ever session With no history for that exercise, the best set of the session takes the record.
Exercise matching Sets are matched by exercise identity, and also by normalised name, so a renamed or re-created exercise keeps its record history.
Assisted work Compared on the signed weight, so a record means less assistance than ever before.

Why a set has to win twice

Testing only against history would mark several sets in the same session, since a top set and the one below it may both beat what you did last month. Testing only within the session would mark something every time you trained. Requiring both keeps the flag meaning what people expect it to mean: this was your best, and it was better than anything before it.

The two tests also run per kind. A single set can hold a rep record while a different set that day holds the weight record, which is the honest description of a session where you went heavy early and long later.

Renaming an exercise does not reset your records

Exercises are matched for record purposes both by their identity and by a normalised form of their name, so tidying up a name, or logging the same movement as a custom exercise you created later, does not start your history over. The comparison follows the movement rather than the row it happens to be stored in.

What this does not do

The boundaries of the behaviour above, stated so you do not have to infer them.

Related questions

Can two sets in one session both be marked as a weight record?

No. Each kind of record is held by at most one set per session — the best one. Different kinds can be held by different sets on the same day.

I matched my old best exactly. Why is there no record?

A record requires beating the previous best, not equalling it. The next rep, or the next increment, takes it.

I renamed an exercise. Did I lose its records?

No. Record comparison matches on a normalised form of the name as well as on the exercise itself, so the history follows the movement.

Do warm-up sets ever hold a record?

No. They are removed before both the current-session comparison and the historical one.

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Documentation checked against the shipping app on 2026-08-15.

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