About Us

We've been changing lives and helping people to surpass their goals for over 15 years with proven results time and time again and it all started with one man's passion for boxing. 

Undisputed-Boxing was born with the idea to enable everybody to feel the thrill and excitement of boxing training regardless of your experience or ability, to train in a real boxing gym with real England boxing coaches and learn 100% real boxing. 

Helping people to make positive changes to their lives through boxing has been inspiring with many of our customers achieving dramatic weight loss, spectacular fitness levels, staggering body shape and huge improvements to mental health issues including stress and anxiety. 

Seeing our customers continue to thrive and exceed their personal limits because of boxing gives us the motivation to continue giving you exceptional boxing training and help you achieve greatness within. 

John Machin - Head Coach

Watching Nigel Benn beat Gerald McCllelan in 1995 sparked an obsession into a 13 year old boy that's still burning to this day, the anticipation and thrill of watching two athletes pound it out for glory stirred a need to learn this amazing sport. After begging for his own punch bag John would hit the bag for hours at a time, constantly watching videos and matches to learn how to box like the pro’s.

With no boxing gym in his area, John would catch 2 buses to the nearest club just so he could learn as much about boxing as he could and gain the skills he needed to progress. He was so hooked on boxing he would travel all over the uk to train in other boxing gyms to get as much experience as possible.

All his hard work and dedication led to John training as a high level amateaur and was showing potential to becoming a pro but tragedy struck with a horrific neck injury that ended his promising boxing career. Although devastated he was determined to keep boxing in his life and qualified as an England boxing coach and was able to open Hucknall Boys ABC and has taken immense pride in training some amazing boxers and changing the lives of the young people in Nottingham. 

John's passion for boxing still burns and it definitely shows in his training with each session a well-thought-out mix of enjoyable, motivational, hard work and challenging. He enjoys watching his customers succeed and will push them to get the best out of them and to ensure they reach their goals.

With his easy going personality, vast knowledge and enjoyable training sessions John has made a huge impact on the extensive list of clients that he has trained for many years who have exceeded their expectations and achieved more than they ever thought possible.


Katie Yemm - Coach

Boxing was what got me into my wedding dress. I'd only got 12 weeks till the big day and I was really struggling to lose the extra weight gained whilst recovering from a knee operation that left me off my feet for quite a while.

I’d tried loads of different classes at my local gym but found them to be quite boring and repetitive and ended up quitting. The only one that sparked a little interest was the boxercise class so I decided to try a proper boxing lesson and I was instantly hooked.

I stuck to it and managed to lose 2 stones which meant I could fit into my wedding dress.

I loved training so much that I continued with my one to one sessions. 

The weight loss made a huge impact on my life but not as much as the mental benefits. The stress relief and discipline that boxing gave me helped me to totally come off my anxiety medication and now I'm a completely different person with more confidence.

All this has led me to coaching and I hope my story will help others make positive changes and improve their lives like I did. 

The reward I get from teaching others and motivating them to reach their goals is inspiring, and I can honestly say that I love the job that I do.


Ryan Cash - Coach

Having been trained by John for over 10 years Ryan has been a great addition to the coaching team, he has been a loyal boxer to Hucknall Boys ABC and has 15 bouts under his belt and has gained a tremendous amount of experience from his time in the ring and in the gym. 

Ryan is an outstanding boxer with exceptional footwork and lightning fast hands which has led to him being chosen to represent Nottingham University where he is studying to become a physiotherapist. His studies have also given him an advanced understanding of the human anatomy which he can pass on to his clients to help them achieve their goals 

The type of training you can expect from Ryan is fast paced but fun and he enjoys teaching others his style with quick feet and rapid hands, he loves holding the pads and taking his customers through light sparring drills to get them enjoying being in the ring.

The thing that Ryan loves about working and training at Undisputed-Boxing is the easy going atmosphere, everyone trains hard, gets unbelievable results but still has fun too.