5/3/1 Boring But Big in Durata: where the progress actually happens

Finding the program

A fresh install opens on the first-run funnel: import an old log, build a profile, find a program, connect Health, or skip straight to logging. This run takes the program route.

The finder takes three answers, goal, experience and days a week, and returns a shortlist. For an intermediate lifter wanting four days and a mix of strength and size, 5/3/1: Boring But Big comes back at the top, which is roughly what it has done on lifting forums for fifteen years.

The program page lays out what you are agreeing to. Four days a week, one main lift each, four-week cycles that repeat. Squat on day one, overhead press, deadlift and bench across the rest of the week. After the three main working sets on each day, the same lift comes back for five sets of ten at half the training max, and then each session finishes with push, pull and core assistance work.

What you set, and what the app works out

5/3/1 runs on training maxes rather than on the weights themselves. You give the app one number per main lift, deliberately under your true max, and from then on every prescribed weight in the program is a percentage of it. Nothing else about the main lifts is yours to decide: not the jumps, not the back-off weights, not the deload.

The assistance work is the part that does carry its own weights, so the same setup sheet asks for those separately. On this run the good morning opened at 77.5 kg and the machine work at the numbers a first session would set. Those lifts progress on their own rules, independent of the wave.

Then a start date puts sixteen weeks of sessions on the calendar in one move. Four cycles, four weeks each, dated from that point, which is why the article below counts sessions and cycles rather than weeks.

Week one: 5s, and then fifty more reps

The first squat session opens the wave at 120 kg, which is a percentage of the 140 kg training max rather than a weight anybody chose. Three working sets, the last one a rep-out, and the app shows the training max it is working from at the top of the exercise so the percentage is never a mystery.

Then the Boring But Big part begins. The same lift comes back for five sets of ten at half the training max, which on this session is a much lighter bar and a great deal more work. That is the whole design: 5/3/1 supplies the strength stimulus in three sets, and the 5×10 supplies the size stimulus underneath it, on the same movement, off the same number.

The session-complete screen shows what that adds up to. Eight sets on the main lift, 67 reps, and 5315 kg of total volume before the assistance work is counted. It is a lot of tonnage for a program whose heavy portion is three sets long.

The heavy week, then the week that looks like a mistake

Week three is the top of the wave. The squat runs 132.5 kg on its last working set, ninety-five percent of the training max, for a prescribed single and as many more as you have. This is the only week in the cycle where the program asks a real question, and the answer to it is what the next cycle is built on.

Week four is the part people delete from their own spreadsheets. The bar drops back to warm-up territory, the reps are fixed, and there is no rep-out anywhere in the session. It looks like a wasted week and it is the reason the next one works. Durata prescribes it in full rather than marking it optional, because the cycle's arithmetic assumes it happened.

At the end of that week the training max is reviewed. The heavy week's rep-out is what decides it: clear the prescribed reps and the review adds weight, miss them and the number holds. On this program the squat and the deadlift are set to move 5 kg a cycle and the two pressing lifts 2.5 kg, because a five-kilo jump means something different on a squat than it does on an overhead press.

The review: one number, and the whole cycle moves

Cycle two opens on the reviewed training max, and the session on screen is the same session as before with a heavier bar: the identical percentages, the identical rep scheme, 122.5 kg where the first cycle put 120 kg. Nothing in the program changed. One number underneath it did.

Because the Boring But Big sets are half of that same training max, they move with it. There is no second setting for the back-off weight and no separate decision to make about it. Raise the training max and the heavy triple, the rep-out and all fifty back-off reps all step up together, which is precisely why 5/3/1 is written in percentages rather than in weights.

Four cycles later the training max has gone from 140 kg to 160 kg, and the top set of the heavy week has followed it from 132.5 kg to 147.5 kg. The strip below is every heavy appearance of the squat across the block, three per cycle, deload weeks omitted because they carry no rep-out and no verdict.

The squat is the lift this run followed set by set, but the review is not a squat event. It runs on all four main lifts at the same boundary, off each one's own heavy week, and the block's record has all four moving: the squat from 140 kg to 160 kg and the deadlift from 180 kg to 200 kg, the bench from 100 kg to 110 kg and the overhead press from 60 kg to 70 kg. Two lifts on the bigger jump, two on the smaller one, four separate verdicts, one schedule.

Inside the cycle, nothing improves

The estimated one-rep max chart is the clearest thing this drive produced, and it is not a flattering line. Inside every cycle it is flat. The first cycle's three working weeks estimate 148 kg, then a shade under that, then a shade under that again, because the reps drop as the bar gets heavier and the two roughly cancel. The same is true of cycle two, cycle three and cycle four.

The steps are all at the boundaries. Each review raises the training max, the next cycle's percentages resolve higher, and the estimate jumps to a new flat stretch. Across the whole block that estimate goes from 148 kg to a shade over 163 kg, and essentially all of that movement happened in the four moments between cycles rather than in the forty-eight sessions inside them.

This is worth seeing rather than being told. A lifter watching a single cycle in isolation sees no progress at all and concludes the program is not working, which is the single most common reason people abandon 5/3/1 in month one. The chart makes the actual shape visible: four flat plateaus, each one higher than the last.

Sixteen weeks, seen from the outside

The History calendar holds the whole block: 64 sessions across four identical-looking cycles, each one a copy of the last on a heavier bar. Four days a week is a real commitment and the calendar is the honest record of whether it happened.

The analytics recap totals it up, and the totals are what the Boring But Big template is famous for. The strength view puts the per-lift index alongside weekly volume, so the main lifts and the assistance work sit on the same screen instead of in four separate histories.

The payoff: the same session, sixteen weeks apart

Two screenshots of the same lift on the same screen, both of them a heavy 5/3/1 squat session. The first is the opening week of cycle one; the second is the last heavy week of cycle four. The set scheme is identical, the percentages are identical, and the bar is 27.5 kg heavier because four training-max reviews said it could be.

Cycle 1, week 1

120 kg → 147.5 kg

+27.5 kg

120 kg to 147.5 kg across four cycles, with every weight in between resolved from a training max the app reviewed on schedule.

Cycle 4, week 3