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28 Day Challenge


Introducing our first RUN X STRENGTH 28 Day Challenge! Improve your fitness levels, enhance your overall health, and join our unmatched supportive community to reach your goals!


Join the CB app today and enjoy 14 days FREE!

Date: Feb 12, 2024 - Mar 10, 2024
Trainer: Louis
Weekly Run Club Tickets


Everything you need to know!

  • 4 x strength/conditioning-based sessions per week
  • 2 x planned runs per week
  • Weekly run club (held in London throughout challenge)
  • Minimal equipment required
  • Prizes to be won!
  • Find all details & book your free tickets here for our weekly run club in London.

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 so that you can take part anytime. These will be found in the 'challenge' section of the app under 'RUN X STRENGTH' and under trainer Louis.

Who can join the Challenge?

This 28 Day Challenge is suitable for anybody looking to level up their fitness, stamina and strength.Using a progressive structure to achieve results and with the ability to take all sessions at your own pace.This dynamic & hybrid challenge will be sure to push your limits.

Louis Q will be leading you through the real-time strength & conditioning workouts, and we have planned runs for you to follow each week. Just download the app to get started!

Who is the challenge trainer?

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Team CB

Don't Miss Our Challenge Prizes!

  • Massage gun
  • running bundle
  • fitness watch


  • Tag us in your stories, posts and engage with us throughout the challenge using #cbrunxstrength to be in with the chance to win our weekly prizes.
  • To win our annual subscription prizes, take your front, side and back transformation pictures on day one of the challenge and again at the end!
  • Make sure you're holding a piece of paper with the following information to be eligible to win!
    • 'CB App RUN X STRENGTH '
    • Date (start and end for photos one and two)
    • Your first and second name
    • Instagram handle
  • Top Tips
    • Make sure your before and after pictures are clear
    • Get your full body in the shot
    • Try and keep the lighting and clothing similar for both the before and after picture

See our example below!

Screenshot 2023-06-14 at 10.08.48