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4 Day Split
IntermediateFree

4 Day Split

Raynold P.
Raynold P.· Mar 2025
iOS & Android

Overview

Length
18 weeks
Days / week
4 days
Level
Intermediate
Goal
Muscle
Equipment
Full Gym
Session length
60 min
When your recovery is trash and want to run a bro split.

Who it's for

Intermediate athletes ready for a structured program
Athletes focused on building muscle size
Athletes who can train 4 days per week
Athletes with access to a full gym (barbells, dumbbells, cables, and machines)

Muscle engagement

Front
Back
Chest
12.1%
Triceps
12.1%
Quadriceps
10.1%
Glutes
10.1%
Hamstrings
10.1%
Biceps
9%
Upper Back
7.5%
Lats
7.5%
Front Delts
7.5%
Forearms
4.5%
Rear Delts
3%
Abs
3%
Abductors
2%
Lower Back
1.5%
Week 1 Workouts
#ExerciseSetsRepsLoad
1Wide Grip Pull Up38 reps@8
2Bent Over Row (Barbell)38 reps@8
3Chest Supported Row (Machine)312 reps@8
4Standing Pullover (Cable)312 reps@8
5Rear Delt Fly (Cable)312 reps@10
#ExerciseSetsRepsLoad
1Preacher Curl (Dumbbell)312 reps@8
2Tricep Pushdown (Cable)312 reps@10
3Incline Curl (Dumbbell)312 reps@9
4Skull Crusher (Barbell)312 reps@9
#ExerciseSetsRepsLoad
1Deadlift (Barbell)33 reps@8
2Leg Press112 reps@8
312 reps@10
3Split Squat (Dumbbell)312 reps@8
#ExerciseSetsRepsLoad
1Dip (Weighted)312 reps@9
2Incline Bench Press (Dumbbell)312 reps@8
3Chest Fly (Machine)312 reps@8
4Incline Lateral Raise312 reps@10

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, 4 Day Split 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 60 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.

4 Day Split 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.

4 Day Split 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
1,000+ 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