BBS Challenge
- 🎁 25% OFF YOUR FIRST YEAR 🎁
6 Week Challenge
- 3 Teams - Bikini, Booty or Shred
- Achieve Real Results That Last
- Customisable Meal Guides
- Win a year's supply of CSB
6 Week Challenge
Bikini Booty Shred
This exact Challenge has transformed over 150,000 women’s lives, and now it’s your turn. Programmed by Rachel Dillon, backed by your favourite Coaches for more support than ever before.
BIKINI 👙 Sculpt a full body transformation.
BOOTY 🍑 Grow your glutes & define lean legs.
SHRED 🔥 Achieve your fat loss & physique goals.
The Challenge starts Monday, June 22nd. Sign up today with Platinum Membership and get 25% off our Annual plan – for a limited time only.
Team Bikini
Transform
Full Body
Sculpt
Weighted Workouts
Team BIKINI is for you if your goal is to:
+ Create a full body transformation.
+ Improve core strength and stability.
+ Experience a variety of training styles.
By choosing Team BIKINI, you will enjoy a combination of:
+ Sculpting sessions.
+ High-intensity cardio circuits.
+ Core strength exercises that focus on building stability.
+ Weighted workouts.
+ Dedicated mobility sessions to assist with range of movement and technique (round 5 only).
Team BIKINI is suitable to those at all stages of their fitness journey with 5 rounds to choose from.
Team Booty
Grow Glutes
Define LegsStrength
Weighted Workouts
Team BOOTY is for you if your goal is to:
+ Grow your glutes and define lean legs.
+ Improve your overall strength.
+ Gain confidence lifting weights in the gym.
By choosing Team BOOTY, you will enjoy a combination of:
+ Lower-body and upper-body focused sessions.
+ Weighted workouts.
+ Core circuits.
+ Low intensity and high intensity cardio sessions.
Team BOOTY is suitable to those at all stages of their fitness journey with 4 rounds to choose from.
Team Shred
Fat Loss
High Intensity
ExpressWeighted Workouts
Team SHRED is for you if your goal is to:
+ Achieve your fat loss and physique. goals.
+ Improve your fitness levels.
+ Train with short, effective workouts using minimal equipment.
By choosing Team SHRED, you will enjoy a combination of:
+ Full-body high-intensity circuits.
+ Low-intensity cardio.
+ Core-focused circuits.
+ Weighted workouts.
Team SHRED is suitable to those at all stages of their fitness journey with 4 rounds to choose from. This has been designed to ensure no matter your goal or fitness level, there is something for you.
What You Can Achieve
During this challenge, I was able to push myself not only in the gym but mentally with discipline. This challenge increased my upper body strength and has made me fall in love with the gym again. I was able to see my body transform with the workouts designed and guided nutrition and will definitely use this beyond the 6 weeks.
- Ruth (Sculpt)
My biggest accomplishment from this challenge was having more energy to play with my daughter. I trained 6 days a week and completed 100% of the workouts. My biggest advice to anyone starting their fitness journey is that you first need to learn how to listen to your body to find out what it is telling you it needs.
- Cindy R. (Build)
I’ve done challenges on and off for years, but this is by far the most consistent I’ve been for a whole challenge... I’ve lost around 6kg, but the cm and progress pics are where you truly see your progress! It’s amazing the difference I’m seeing in every aspect of life too. From mindset and mental health, to energy levels and having old clothes fit.
- Jessica (Burn Round 2)
This isn’t my first challenge, and I came into it with a more settled, long-term outlook as opposed to my previous ‘all or nothing’ attitude. As a mum of 4 who had had a mid-challenge holiday AND topped it off with being sick - keeping a steady mindset about it all is something I’m proud of myself for. I love my fitness journey & it’s ALL thanks to being part of this incredible community!
- Emilee (Sculpt, Round 1)
100% would recommend! This challenge has been amazing and the perfect level (was achievable but just enough of a challenge to push me!) the app is easy to use and follow! Can’t wait for the next one
- India (Build)
I made a commitment that I would look after myself better and invest in my health, as a mother of 4 beautiful boys over the last 10 years I have dedicated my life to raising my children but now it was time for me to put myself first and invest in my health. I took a leap of Faith to do the challenge and it was scary but I was committed to my growth and change. RESULTS: Loss 7kgs and loss 85cm ✊🏽
- Mesepa S. (Burn Round 1)
Challenge Prize
WIN A YEAR’S SUPPLY OF CSB
Join the first intake of the BBS Challenge starting June 22 for your chance to win a 12 month supply of CSB activewear, valued at $2,500 AUD. One lucky winner will be selected for the most impressive transformation.
Frequently Asked Questions
The first intake of the Challenge commences Monday, June 22nd and will be available exclusively to Platinum Members for 12 Weeks.
Yes! You can use our ‘Restart Program’ feature allowing you to start the following Monday, however the Challenge is only available for a limited time!
You’ll receive app access from June 18th, just keep an eye out for an email from our team on how to get started in the MWU App.
WIN A YEAR’S SUPPLY OF CSB
Join the first intake of the BBS Challenge starting June 22 for your chance to win a 12 month supply of CSB activewear, valued at $2,500 AUD. One lucky winner will be selected for the most impressive transformation.
To enter, simply track your progress:
📸 Take a photo using our supplied graphics before and after the Challenge
📝 Submit your photos through the client survey at the end of the Challenge
The Bikini Booty Shred Challenge officially begins on June 22nd, 2026, and will be available exclusively to Platinum Members for 12 weeks to make the most of it.
You’ll receive access to the Challenge in the App on June 18th, 2026, and it will expire in the App on September 13th, 2026.
✓ Choose between 3 Teams with multiple rounds.
✓ Access to gym & home workouts.
✓ Train 4, 5, or 6 days per week.
✓ Personalised Macros.
✓ Easy-to-follow Meal Guides & Recipes.
✓ 12 weeks of access to the BBS Challenge workouts.
✓ Weekly Check-ins.
✓ Daily Goal Setting & Habit Tracking.
✓ WIN A CSB WARDROBE!
You can find all the training splits for each team here.
Choose from one of the below teams and you will enjoy a combination of:
BIKINI
✓ Sculpting sessions.
✓ High-intensity cardio circuits.
✓ Core strength exercises that focus on building stability.
✓ Weighted workouts.
✓ Dedicated mobility sessions to assist with range of movement and technique (round 5 only).
BOOTY
✓ Lower-body and upper-body-focused sessions.
✓ Weighted workouts.
✓ Core circuits.
✓ Low-intensity and high-intensity cardio sessions.
SHRED
✓ Full-body high-intensity circuits.
✓ Low-intensity cardio.
✓ Core-focused circuits.
✓ Weighted workouts.
Yes! You will have the option to choose from a 4, 5 or 6-day training split each week.
No matter what Team or Round you choose, you will have access to ALL Rounds and Teams!
If, after completing your questionnaire you find that the Round is too easy, you can change to a new Round or Team. Keep in mind that when you change Rounds, you will prompt a new questionnaire to complete.
If you're not certain which Round or Team to begin with please reach out to our team.
Our BBS Challenge has 3 teams to choose from, each with multiple rounds to enjoy. This has been designed to ensure no matter your goal or training experience, there is something for you.
With 4-5 rounds to choose from per team, the rounds increase in difficulty as you progress.
ROUND 1: Perfect for beginners or intermediate ladies who are completing a Challenge with us for the first time.
ROUND 2: A great intermediate level for experienced trainers, or ladies who have completed a MWU Challenge before.
ROUND 3: The ideal round for advanced trainers looking to take it up a level for a serious Challenge.
ROUND 4: We recommend this round for the expert trainers who have completed Round 3 previously, or those who have experience, not just with training, but with various training methods.
ROUND 5: This is our most challenging round yet, with new advanced training methods introduced! This round is exclusive to our Bikini Challenge team. We recommend this round to those who have at least a years’ training experience or have completed the previous rounds.
A standard gym should provide all equipment required to complete gym workouts.
If you're completing the Challenge from home, you'll need:
BIKINI:
✓ Set of dumbbells
✓ Ankle weights
✓ Booty Bands
✓ Bench or sturdy piece of equipment
✓ Exercise Ball
✓ Foam Roller
✓ Kettlebell
✓ Resistance Bands
✓ Skipping Rope
✓ Trigger Ball
✓ Yoga Mat
✓ Med Ball
✓ Power Bands
BOOTY:
✓ Set of dumbbells
✓ Ankle weights
✓ Booty Bands
✓ Bench or sturdy piece of equipment
✓ Exercise Ball
✓ Resistance Band
✓ Skipping Rope
✓ Yoga Mat
✓ Kettle Bell
SHRED:
✓ Set of dumbbells
✓ Ankle weights
✓ Booty Bands
✓ Resistance Bands
✓ Power Bands
✓ Bench or sturdy piece of equipment
✓ Exercise Ball
✓ Skipping Rope
✓ Yoga Mat
✓ Kettle Bell
These workouts are designed with minimal equipment, so you can train anytime, anywhere—whether at home or in the gym.
Yes, you will receive a Customisable Meal Guide to use throughout the Challenge. See more information about Team specific Nutrition Goals below.
BIKINI
Recommended nutrition goal:
✓ Both
✓ Lose body fat
Both:Team Bikini is the perfect opportunity to enter a slight calorie deficit and achieve your goals while maintaining your energy levels! This goal combines a slight calorie deficit for steady weight loss with a focus on muscle preservation or, in some cases, muscle growth! While challenging, it's achievable to simultaneously experience fat loss and muscle growth, particularly suitable for beginners or those returning to weight training after some time off. The perfect combination of nutrition and training to refine your physique goals!
Lose Body Fat: The lose body fat goal combined with Team Bikini is ideal for those looking to take a more aggressive approach to fat loss! This goal involves a more significant calorie deficit to accelerate your results, so while your energy levels may feel slightly lower than usual, the Team Bikini workouts are designed to complement this approach and keep you feeling strong throughout the Challenge. If you are ready to commit to your fat loss goals and push through, this is the perfect combination for you!
BOOTY
Recommended nutrition goal:
✓ Both
✓ Muscle gain
Both: Team Booty combined with the both goal is a great option for those looking to recompose their physique — losing body fat while simultaneously sculpting and building glute muscle! This goal combines a slight calorie deficit for steady fat loss with a strong focus on muscle preservation and growth, meaning you can still make meaningful progress on your booty goals even while in a deficit. While it takes longer to see dramatic changes through body recomposition, the results are sustainable and the Team Booty workouts are perfectly designed to help you build and shape your glutes along the way!
Muscle Gain: The muscle gain goal combined with Team Booty is ideal if you want to start or continue your muscle growth journey, providing you with a surplus of calories to fuel your strength workouts and hit some PBs! When you select muscle gain, you will have more energy than usual, which means you can push harder in your training and optimise those strength goals throughout this Challenge. This is the perfect combination of workouts and nutrition to maximize your strength and gains!
SHRED
Recommended nutrition goals:
✓ Lose body fat
✓ Both
Lose Body Fat: This goal is designed for those primarily focused on weight loss and involves a significant calorie deficit to help you achieve a transformation! The Team Shred workouts focus on variety alongside intensity, which may be harder to achieve in a calorie deficit as this often means slightly lower energy. However, if you are ready to embrace this challenge and hit your weight loss goals, this is perfect for you!
Both: A less dramatic option for those looking to maintain energy levels alongside a steady weight loss. This goal combines a slight calorie deficit for steady weight loss with a focus on muscle preservation or, in some cases, muscle growth! While challenging, it's achievable to simultaneously experience fat loss and muscle growth, particularly suitable for beginners or those returning to weight training after some time off.