Strength & Conditioning
Build Your Own 100 Rep Challenge
Want to create a killer workout with no equipment? Learn how to build your own 100 rep challenge using just 4 or 5 bodyweight moves — scalable to any fitness level.
By Richard Branson · · Updated
Intro: Some of the most effective workouts are also the simplest. With the RB100 philosophy, one of the most fun ways to train is to build your own 100 rep challenge. It’s quick, intense, and requires zero gear — just your body and some grit.
Whether you’ve got 10 minutes or 30, this style of training works for strength, cardio, or skill-based goals. Plus, it's easy to adapt for home, gym, or travel.
How It Works
Pick 4–5 movements and assign reps that total 100. Here are a few formats to get started:
Classic 5 x 20:
- 20 push-ups
- 20 squats
- 20 mountain climbers (each leg)
- 20 sit-ups
- 20 jumping jacks
Descending Ladder:
- 40 air squats
- 30 push-ups
- 20 jumping lunges
- 10 burpees
Core Focused:
- 25 V-ups
- 25 flutter kicks (each leg)
- 25 sit-ups
- 25 mountain climbers
HIIT Format:
- 5 rounds of 20 reps: alternate cardio & strength moves, e.g. squat jumps + push-ups
Notebook or whiteboard with a handwritten 100 rep plan Close-up of timer_watch next to towel and water bottle
Make It Yours
- Time it — aim to improve each week
- Add music and treat it like a game
- Challenge a friend to also complete the build your own 100 rep challenge(or post your time on socials with #RB100Challenge)
Why 100 Reps?
- Creates a psychological benchmark
- Easy to remember and commit to
- Feels like an “event” without needing a gym
- Scalable for all levels