Next Challenge

Starts in
  • days
  • Hours
  • Minutes
  • Seconds

28 Day Challenge


Our dedicated challenge for STRENGTH with trainer Luke, this 28 day challenge is an express challenge built with 5 x 30min workouts every week!

Sign up to our mailing list to be eligible for the chance to win our transformation prizes & receive motivational and educational content throughout!



Date: Jul 24, 2023 - Aug 20, 2023
Trainer: Luke

The 28 Day STRONG EXPRESS Challenge!

Everything you need to know!

The PERFECT summer challenge to become the STRONGEST version of you!

This challenge has been created to fit in around your day to day life, an achievable programme for all fitness levels with a full body are going to become stronger than ever!

Build muscle and improve your body composition, increase your overall strength & power as well as elevating your entire fitness level. 

Luke will be with you every session in real time format, to help guide you and motivate you on this journey! The CB app community is like no other and together we are going to SMASH this!

How to win our prizes!

First steps first, make sure you're signed up to be eligible for winning our transformation prizes at the end of the challenge ( link below).
Take your transformation pictures front, side, back on day one of the challenge and again at the end! Make sure you're holding a piece of paper with 'CB App Strong Express', the date, your name and instagram handle! We have 10 x 1 year subscriptions up for grabs from your incredible transformations! See our example below!

Screenshot 2023-06-14 at 10.08.48



* you must be signed up to be eligible. Prizes are only applicable with live challenge dates.

What is the 28 Day Challenge?

This is our STRONG EXPRESS challenge dedicated to STRENGTH! Designed to help you build muscle, become stronger & improve body composition. 

28 Days

5 x 30 min workouts per week

2 rest days per week

10 x 1 year app subscriptions to be won!

A mixture of dumbells required to get the most out of your sessions!

Preview the challenge

Preview the challenge

Want to find out if this is for you? You can download the app today for 14 days FREE!

Access all videos

Download the CB APP now to access the full challenge and finish what you started

Who is the challenge trainer?

FIT 14-2-1



Team CB

Are the workouts live?

The workouts are uploaded every day at midnight as per our weekly schedules (found in app and on socials) for you to do at your convenience . The workouts will remain on the app after the challenge has ended. These will be found in the 'real time' section of the app under '28 Day Challenge Strong Express' and under trainer Luke.

Who can join the 28 Day Challenge?

Our challenge is designed for EVERYONE, no matter your fitness level or goals the challenge is designed to build your strength! Go at your pace, keep progressing, just don't quit!

Real-time follow along workouts providing you with your very own PT in your pocket suitable to complete at home with minimal space and equipment. Just download the app to get started!

How do I join?

Simply download the Courtney Black App and hit the real-time workout section to find 28 Day Summer Shred It Challenge from 19th June!
If you’re brand new… We’ve got good news.
You can enjoy 14 days FREE with our trial!