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PHAT 4 day V2
IntermediateFree

PHAT 4 day V2

PHAT 4 day version

· Sep 2025
3athletes running this program
iOS & Android

Overview

Length
18 weeks
Days / week
4 days
Level
Intermediate
Goal
Muscle, Strength
Equipment
Full Gym
Session length
80 min
4 day version of PHAT combining both upper hypertrophy days into 1

Who it's for

Intermediate athletes ready for a structured program
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%
Quadriceps
10.9%
Chest
9.7%
Upper Back
9.3%
Hamstrings
9%
Front Delts
8.8%
Biceps
7.2%
Glutes
6.9%
Middle Delts
5.8%
Calves
5.8%
Lats
5.8%
Rear Delts
3.8%
Abs
2.3%
Adductors
1.8%
Forearms
1%
Lower Back
0.5%
Abductors
0.4%
Week 1 Workouts
#ExerciseSetsRepsIntensity
1Bench Press (Barbell)33–5 reps77.5%
2Pull-Up (Assisted)26–10 reps
3T-Bar Row26–10 reps
4Dip (Assisted)26–10 reps
5Pendlay Row33–5 reps
6Shoulder Press (Machine)36–10 reps
7Preacher Curl (EZ Bar)36–10 reps
8Tricep Extension (Machine)36–10 reps
#ExerciseSetsRepsIntensity
1Squat (Barbell)33–5 reps77.5%
2Hack Squat26–10 reps
3Leg Extension26–10 reps
4Pendulum Squat35–8 reps
5Leg Curl26–10 reps
6Calf Raise (Leg Press)36–10 reps
7Seated Calf Raise26–10 reps
8Abs Crunch (Machine)312–15 reps
#ExerciseSetsReps
1Bench Press (Dumbbell)36–10 reps
2Incline Bench Press (Dumbbell)38–12 reps
3Incline Bench Press (Barbell)312–15 reps
4Chest Fly (Machine)215–20 reps
5Seated Row (Cable)28–12 reps
6Lat Pulldown215–20 reps
7Preacher Curl (EZ Bar)38–12 reps
8Tricep Pushdown (Cable)212–15 reps
9Hammer Curl (Dumbbell)215–20 reps
#ExerciseSetsReps
1Squat (Barbell)48–10 reps
2Leg Press38–12 reps
3Leg Curl312–15 reps
4Seated Calf Raise412–15 reps
5Seated Shoulder Press (Dumbbell)38–12 reps
6Lateral Raise (Dumbbell)312–20 reps
7Face Pull38–12 reps
8Reverse Pec Deck315–20 reps

Weeks 2–18 are in the app

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

Common questions

Yes, PHAT 4 day V2 is completely free to follow on Boostcamp. Download the app on iOS or Android, find the program, and start your first workout immediately. All 18 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.

PHAT 4 day V2 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 18 weeks. The structure is designed so that each week builds on the last, with weights, volume, or intensity progressively increasing as you go.

PHAT 4 day V2 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