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Your Coach

John Byrne - Trained Killer

Meet Your Coach

John, born and raised in Dublin, Ireland, started his journey into fitness and martial arts as a way to deal with being bullied and quickly found his passion. What began as a hobby has turned into a career helping others, whether it’s learning new skills, getting fitter, or boosting confidence.

A qualified fitness professional with deep roots in martial arts and self-defence, John trains at SBG Ireland under John Kavanagh, one of the most renowned coaches in the world. Known as “The Belt Collector,” John has earned multiple titles across Ireland and the UK, bringing unmatched experience and expertise. His passion for fitness and martial arts is the foundation of what you see today, UC Fit.

Get Fighting Fit Without Getting Hit


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Ready to start your fitness journey? Let’s talk goals.

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