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Jim Wendler's 5/3/1 Program: The Definitive Guide

A complete guide to Jim Wendler's 5/3/1 program covering training max calculation, the full 4-week cycle structure, the four main templates (BBB, FSL, Boring But Big, Leviathan), and who the program suits.

By MyWorkoutCalendar Editorial Team
10 min readPublished 2026-05-08
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5/3/1 is one of the most proven strength programs ever written. Created by Jim Wendler — a former powerlifter who totaled over 2,300 lbs — the program has been used by hundreds of thousands of lifters to build serious, long-term strength. Its genius is simplicity: four core lifts, a percentage-based progression system, and a four-week cycle that almost guarantees continued progress for years.

What Is 5/3/1?

5/3/1 is a percentage-based strength program built around four main lifts: - Squat - Bench Press - Deadlift - Overhead Press

Each lift is trained once per week. The program runs in four-week cycles, with the first three weeks following a specific set/rep/percentage scheme, and the fourth week serving as a deload.

The defining feature of 5/3/1 is the **AMRAP set** — the last set of each session is performed for as many reps as possible (AMRAP). This turns a straightforward percentage program into a self-regulating system: on a good day you grind out 12 reps, on a bad day you get 6, and the cycle adjusts accordingly.

Training Max: The Foundation of 5/3/1

Before running 5/3/1, you calculate your **Training Max (TM)** — not your true 1 rep max, but 85–90% of it.

**Why?** Because 5/3/1 is built for sustainable long-term progress, not maximum short-term performance. Using 85–90% of your true 1RM keeps loads manageable, ensures you can hit your reps with quality, and prevents the program from becoming unrecoverable too quickly.

**How to calculate your Training Max:** 1. Find your best recent 1RM (or estimate it using a max reps set: weight × reps × 0.0333 + weight) 2. Multiply by 0.85–0.90

Example: Squat 1RM of 200 lbs → Training Max = 180 lbs (90%)

**After each 4-week cycle, add:** - 5 lbs to squat and deadlift Training Maxes - 5 lbs to bench and press Training Maxes

This is intentionally conservative. The program works because progress is guaranteed every cycle. Greedy jumps lead to stalled cycles and missed reps.

The 4-Week Cycle Structure

Week 1 — 5s Week

| Set | Percentage | Reps | |---|---|---| | Set 1 | 65% of TM | 5 | | Set 2 | 75% of TM | 5 | | Set 3 | 85% of TM | 5+ (AMRAP) |

Week 2 — 3s Week

| Set | Percentage | Reps | |---|---|---| | Set 1 | 70% of TM | 3 | | Set 2 | 80% of TM | 3 | | Set 3 | 90% of TM | 3+ (AMRAP) |

Week 3 — 5/3/1 Week

| Set | Percentage | Reps | |---|---|---| | Set 1 | 75% of TM | 5 | | Set 2 | 85% of TM | 3 | | Set 3 | 95% of TM | 1+ (AMRAP) |

Week 4 — Deload Week

| Set | Percentage | Reps | |---|---|---| | Set 1 | 40% of TM | 5 | | Set 2 | 50% of TM | 5 | | Set 3 | 60% of TM | 5 |

The deload is not optional. It is built into the program to allow accumulated fatigue to dissipate before the next cycle. Skipping deloads degrades performance and eventually stalls progress.

The 4 Main 5/3/1 Templates

1. Boring But Big (BBB)

The most popular 5/3/1 template. After the main work, you perform 5 sets of 10 reps of the same lift (or a related lift) at 50–60% of your Training Max.

Example after Squat main work: - 5 × 10 Back Squat at 50% TM

BBB builds significant muscle mass alongside strength. It is demanding — the volume is high — but produces excellent results for lifters who recover well.

2. First Set Last (FSL)

After the main work, perform 3–5 sets of 5–8 reps using the weight from your first main work set. Lower volume than BBB, better suited for lifters with higher training ages or those running 5/3/1 3–4 days per week.

3. Triumvirate

After the main lift, select 2 accessory exercises and perform 5 sets of 10 each. Total of 3 exercises per session (main lift + 2 accessories). Simple, time-efficient, and effective.

4. Leviathan

A higher-volume template for advanced lifters. Runs the main sets with additional volume work and includes structured hypertrophy accessories. Requires strong recovery and is not recommended for beginners to the program.

**Recommendation for most lifters:** Start with BBB or Triumvirate. They cover both strength and hypertrophy bases without overcomplicating the program.

Sample Weekly Schedule (4-Day)

| Day | Main Lift | Template | |---|---|---| | Monday | Squat | BBB: 5×10 squat at 50% TM | | Tuesday | Bench Press | BBB: 5×10 bench at 50% TM | | Thursday | Deadlift | BBB: 5×10 deadlift at 50% TM | | Friday | Overhead Press | BBB: 5×10 OHP at 50% TM |

Add 2–3 accessory exercises after the main work (rows, pull-ups, lunges, curls) depending on your template.

Who Is 5/3/1 For?

**Best for:** - Intermediate to advanced lifters who have stalled on linear progression - Powerlifters and strength athletes - Lifters who prefer a structured, long-term program with clear progression - Anyone who wants to stop overthinking their training

**Not ideal for:** - Absolute beginners (Starting Strength or StrongLifts 5x5 are better starting points) - Lifters focused primarily on hypertrophy (bodybuilding-style programs have more volume) - Those who want daily variety (5/3/1 is repetitive by design)

Pros and Cons of 5/3/1

**Pros:** - Extremely sustainable — can be run for years - Built-in autoregulation via AMRAP sets - Flexible — multiple templates for different goals - Proven track record across thousands of lifters - Predictable, guaranteed progress when executed correctly

**Cons:** - Slow progression by design — impatient lifters underestimate the long game - Requires accurate 1RM testing to set appropriate Training Maxes - Low frequency per lift (1x/week) compared to other programs - BBB template is demanding — recovery must be adequate

Browse [strength programs](/programs) to find the right variation for your experience level, or [generate a custom strength plan](/generate) built around your current maxes and schedule.

Frequently Asked Questions

**How long should I run 5/3/1?** Indefinitely. The program is designed for long-term use. Most lifters run it for 6–24 months before adapting it or transitioning to a variation. The original book recommends thinking in years, not months.

**Can I run 5/3/1 three days per week?** Yes. Run three of the four main lifts per week in a rotating fashion. This is a common variation for lifters with busier schedules.

**What if I miss a AMRAP set rep count?** If you miss the minimum reps on an AMRAP set, your Training Max is too high. Drop your TM by 10% and rebuild.

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