logo
BoostcampPNG
JR Custom
IntermediateFree

JR Custom

Intermediate strength and hypertrophy program

Joseph Ricci
Joseph Ricci· May 2025
1athletes running this program
iOS & Android

Overview

Length
12 weeks
Days / week
5 days
Level
Intermediate
Goal
Women's, Muscle
Equipment
Garage Gym
Session length
60 min
Arm and shoulder / chest and back split for strength and muscle growth

Who it's for

Intermediate athletes ready for a structured program
Athletes focused on building muscle size
Athletes who can train 5 days per week
Athletes who train in a garage gym (barbell, rack, and basic free weights)

Muscle engagement

Front
Back
Middle Delts
15.2%
Upper Back
14.3%
Triceps
14%
Front Delts
13.7%
Biceps
11.5%
Lats
8.5%
Chest
5.3%
Quadriceps
4%
Rear Delts
3.4%
Glutes
3.2%
Hamstrings
2.4%
Forearms
1.6%
Adductors
1.6%
Abs
1.3%
Week 1 Workouts
#ExerciseSetsReps
1Overhead Press (Barbell)40 reps
2Seated Shoulder Press (Dumbbell)30 reps
3Lateral Raise (Cable)30 reps
4Overhead Tricep Extension (Dumbbell)30 reps
5Tricep Pushdown (Cable)30 reps
#ExerciseSetsReps
1Bench Press (Barbell)40 reps
2Incline Bench Press (Dumbbell)40 reps
3Dip (Bodyweight)20 reps
4Bicep Curl (Dumbbell)30 reps
5Incline Curl (Dumbbell)30 reps
6Bicep Curl (Cable)20 reps
#ExerciseSetsReps
1Squat (Barbell)40 reps
2Pull-Up (Weighted)40 reps
3Lat Pulldown (Close Grip)30 reps
4Upright Row (Barbell)40 reps
5Barbell Row30 reps
6Face Pull30 reps
#ExerciseSetsReps
1Seated Shoulder Press (Dumbbell)40 reps
2Lateral Raise (Dumbbell)30 reps
3Overhead Tricep Extension (Cable)30 reps
4Tricep Pushdown (Cable)20 reps
5Hammer Curl30 reps
6Face Pull30 reps
#ExerciseSetsReps
1Squat (Barbell)30 reps
2Pull-Up (Bodyweight)30 reps
3Upright Row (Dumbbell)30 reps
4Bicep Curl (Cable)30 reps
5Chest Supported Row (Machine)30 reps

Weeks 2–12 are in the app

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

Common questions

Yes, JR Custom is completely free to follow on Boostcamp. Download the app on iOS or Android, find the program, and start your first workout immediately. All 12 weeks are fully unlocked.

This program is built around a garage 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.

JR Custom is structured around 5 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 12 weeks. The structure is designed so that each week builds on the last, with weights, volume, or intensity progressively increasing as you go.

JR Custom 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