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5/3/1 X UL R
Intermediate–AdvancedFree

5/3/1 X UL R

Unlock your strength potential with 5/3/1—four days to lift heavier, push limits, and transform your workouts into real results.

Science Final Boss
Science Final Boss· Aug 2025
107athletes running this program
iOS & Android

Overview

Length
4 weeks
Days / week
4 days
Level
Intermediate, Advanced
Goal
Muscle, Strength
Equipment
Full Gym
Session length
80 min
Unleash your strength with the 5/3/1 program, a focused four-day workout designed to maximize your power and muscle gains in just one week. This program incorporates compound lifts like the squat, deadlift, and bench press, utilizing varied intensity levels to push your limits and promote growth. Each session is crafted to target major muscle groups, ensuring a balanced approach to strength training. Perfect for those looking to break through plateaus and build a solid foundation in their lifting journey. Get ready to lift heavy and feel the results!

Who it's for

Athletes at the Intermediate–Advanced level
Athletes focused on gaining both size and strength
Athletes who can train 4 days per week
Athletes with access to a full gym (barbells, dumbbells, cables, and machines)

Muscle engagement

Front
Back
Triceps
11.2%
Chest
10.5%
Front Delts
10.3%
Quadriceps
9.8%
Upper Back
8.8%
Middle Delts
8.4%
Biceps
7.5%
Lats
7.5%
Hamstrings
6.5%
Glutes
5.2%
Adductors
3.3%
Forearms
2.9%
Abs
2.3%
Calves
2.1%
Rear Delts
1.9%
Lower Back
1.3%
Abductors
0.4%
Week 1 Workouts
#ExerciseSetsRepsLoad
1Bench Press (Barbell)15 reps65%
15 reps75%
15 reps85%
2Tricep Pushdown (Cable)26–10 reps@10
3Preacher Curl (Dumbbell)26–10 reps@10
4Incline Chest Press (Machine)24–6 reps@10
5Lat Pulldown26–8 reps@10
6Chest Press (Machine)16–10 reps@10
7T-Bar Row25–7 reps@10
8Rear Delt Fly (Cable)16–10 reps@10
9Reverse Wrist Curl (Barbell)16–10 reps@10
#ExerciseSetsRepsLoad
1Squat (Barbell)15 reps65%
15 reps75%
15 reps85%
2Shoulder Press (Plate Loaded)26–10 reps@10
3Lateral Raise (Dumbbell)26–10 reps@10
4Calf Raise (Machine)25–7 reps@10
5Leg Curl18–12 reps@10
6Leg Extension18–12 reps@10
7Hip Adductor (Machine)16–8 reps@10
8Reverse Wrist Curl (Dumbbell)16–10 reps@10
#ExerciseSetsRepsLoad
1JM Press20 reps
2Preacher Curl (Dumbbell)20 reps
3Chest Press (Machine)26–8 reps@10
4T-Bar Row25–7 reps@10
5Incline Chest Press (Machine)16–10 reps@10
6Cable Low Row26–10 reps@10
7Shrug (Barbell)18+ reps@10
#ExerciseSetsRepsLoad
1Deadlift (Barbell)15 reps65%
15 reps75%
15 reps85%
2Shoulder Press (Plate Loaded)26–10 reps@10
3Lateral Raise (Dumbbell)26–10 reps@10
4Leg Press2AMRAP@10
5Leg Curl18–12 reps@10
6Leg Extension18–12 reps@10
7Hip Adductor (Machine)16–8 reps@10
8Cable Crunch16–10 reps@10

Weeks 2–4 are in the app

Download Boostcamp to follow the full program with auto-progression and built-in coaching notes.

Common questions

Yes, 5/3/1 X UL R is completely free to follow on Boostcamp. Download the app on iOS or Android, find the program, and start your first workout immediately. All 4 weeks are fully unlocked.

This program is built around a full gym. Make sure you have consistent access before starting, since the progression model assumes you can perform the same movements week over week.

Each session typically takes around 80 minutes to complete. That estimate covers your working sets but doesn't account for warm-up or rest between sets, so budget a little extra time when you're first learning the movements.

5/3/1 X UL R is structured around 4 training days per week, with rest days built in to allow for recovery. The Boostcamp app lets you reschedule sessions if your week doesn't go to plan.

The program runs for 4 weeks. The structure is designed so that each week builds on the last, with weights, volume, or intensity progressively increasing as you go.

5/3/1 X UL R is available inside the Boostcamp app, free on iOS and Android. Once you download the app, you can search for the program by name. The app tracks all your sets and weights automatically, so you always know exactly what to do next session.

Get started

Boostcamp app
11,000+ free programsStrength, hypertrophy, powerlifting and more, from elite coaches. All free.
Auto-progressionWeights and targets update automatically based on how you perform.
Coaching notesBuilt-in cues from the creator inside every workout session.
Progress trackingLog every set and see your strength gains over weeks and months.
Advanced analyticsTrack volume, intensity, and 1RM trends to see exactly how your training is evolving.
Free on iOS & Android