Are You Ready For The Challenge?

Transform your life one step at a time
Click here for a free session


Welcome to the home of Sub3fitness  working in the Croydon and Beckenham areas, working with people to fulfil their exercise goals, transforming your life to getting you fitter.

Sub3fitness owner David McKenzie is a former European, Commonwealth and World Cup 400 metre relay gold medalist who is a qualified level 4 personal trainer.  David was able to maximise his potential as a world class athlete and whilst he cannot guarantee that you will become a world class athlete.  He will ensure that you can set realistic goals that you are able to achieve. David will pass on his knowledge and experience to you to enable you to become the best version of yourself.

At Sub3fitness you will not be treated as just another number, you are an integral part of the Sub3fitness family and our aim is to get the best out of you by guiding you to improve your fitness level.

So what are you waiting for? At Sub3fitness we are confident at getting you going and encourage you to try before you buy. So we are going to give you your first session FREE before you commit. Our programme is open to all levels of fitness so don’t worry if you haven’t exercised for a long time.

Please do have a look at the Sub3fitness Facebook page and especially the reviews from people who have trained with Sub3fitness and find out what their experience has been like. I’m sure after reading you’ll be inspired to join the Sub3fitness family.  Just remember, you have an opportunity to try before you buy. The Sub3fitness team look forward to seeing you.