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Limz Sub 2 Half Marathon Challenge

Sub2 Hybrid Program

Ken Limz
Ken Limz· Aug 2025
iOS & Android

Overview

Length
14 weeks
Days / week
7 days
Level
Intermediate
Goal
Athletics, Muscle, Strength
Equipment
Full Gym
Session length
120 min
Sub2 Hybrid Program

Who it's for

Intermediate athletes ready for a structured program
Athletes focused on gaining both size and strength
Athletes who can train 7 days per week
Athletes with access to a full gym (barbells, dumbbells, cables, and machines)

Muscle engagement

Front
Back
Abs
23.1%
Quadriceps
10.5%
Glutes
9.4%
Hamstrings
9.4%
Other
6.6%
Triceps
6.5%
Front Delts
6.5%
Lats
6.5%
Upper Back
6.5%
Chest
3.3%
Biceps
3.3%
Middle Delts
3.3%
Adductors
2.6%
Lower Back
2.6%
Week 1 Workouts
#ExerciseSetsRepsIntensity
1Walling130–45 min@6
2Squat (Barbell)35 reps@6
3Bench Press (Barbell)35 reps@6
4Pull-Up (Assisted)38–12 reps@7
5Abs Crunch (Machine)315–20 reps@7
6Leg Raise (Captain's Chair)38–12 reps@7
7Russian Twist315–20 reps@6
8Walking Lunge210 reps@6
9Run125–35 min@6
#ExerciseSetsRepsIntensity
1Walling145–60 min@6
2Run135–45 min@6
#ExerciseSetsRepsIntensity
1Deadlift (Barbell)35 reps@7
2Overhead Press (Barbell)35 reps@7
3Pull-Up (Assisted)38–12 reps@6
4Romanian Deadlift (Dumbbell)212 reps@6
5Abs Crunch (Machine)315–20 reps@6
6Russian Twist315–20 reps@6
#ExerciseSetsRepsIntensity
1Stretching110–15 min@6
2Run140–50 min@8
#ExerciseSetsRepsIntensity
1Walling145–60 min@6
2Run130–35 min@6
#ExerciseSetsRepsIntensity
1Run170–80 min@6
#ExerciseSetsRepsIntensity
1Run170–80 min@6

Weeks 2–14 are in the app

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

Common questions

Yes, Limz Sub 2 Half Marathon Challenge is completely free to follow on Boostcamp. Download the app on iOS or Android, find the program, and start your first workout immediately. All 14 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 120 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.

Limz Sub 2 Half Marathon Challenge is structured around 7 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 14 weeks. The structure is designed so that each week builds on the last, with weights, volume, or intensity progressively increasing as you go.

Limz Sub 2 Half Marathon Challenge 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