I rely on UP ahead of big photo shoots to always help me be in the kind of physical shape that the clients demand. In my industry we must always be as close to perfection as possible and no one understands the way to fine tune a woman’s body like them!

Zoe Duchesne, Victoria’s Secrets model

Nick Mitchell is the best personal trainer that Europe has to offer. His depth of experience keeps him at the forefront of the industry and I have no hesitation in referring anyone visiting the UK to be trained under his watchful experienced eye.

Charles Poliquin, Strength Coach of Olympic medalists and athletes from the NHL and NFL

The fact that my forty-year old frame graced the cover of Men’s Health is down to Nick Mitchell's encyclopaedic knowledge and no-nonsense training techniques. He’s the go-to guy if you want results.

Wesley Doyle, Fitness Editor - Men's Health UK

Training with Nick was great fun and very rewarding. His enthusiasm and passion inspire me and I cannot recommend him highly enough.

Misha Farska, Leading Fashion Model

On my trips to London I have found Sav and the Ultimate Performance team to be the only guys in Europe who can give me what I need – a great place to train, fantastic cutting edge advice, and an insight into competitive sports that only comes from years of coaching experience at the highest level.

Ronnie Coleman, 8 Time Mr Olympia

World Class personal training guaranteed to get unparalleled results

Ben Price, Leading Man (Coronation Street, Footballers Wives)

In my assault to reach the British Heavyweight boxing title and beyond there is only man I could turn to give me the extra strength, speed and conditioning necessary to step up to the big league.  Nick’s coaching is scientific, extremely challenging, and the results speak for themselves!

Larry “The War Machine” Olubamiwo, Top British Heavyweight Boxer

"I was recommended I look up Nick Mitchell before arriving in the UK from Australia.  His knowledge is second to none and is proving extremely useful in getting through another demanding Super League season."

Craig Fitzgibbon, Australian National Rugby League Team

It is thanks to Nick Mitchell’s expertise, understanding and patience, that I am healthier, fitter and leaner than I was 10 years ago. He taught me that it’s not enough to love the body we’re in but to respect it too.

Sassy Wilde, Producer & TV Presenter

I have worked with Kosta for many years and the best compliment I can pay to him is that at the end of our professional partnership we became friends. He is constantly challenging me with through new ideas, care and excellent interpersonal skills.

Christian Lattanzio, England National Football Team / Manchester City Football Club Technical Coordinator

Nick Mitchell is a pleasure to work with. Not only is he full of knowledge but he puts it over in a way that is understandable and practical for everyday people. He obviously has a real passion for everything muscle and fitness and his training methods and the gym atmosphere portrays this.

Men’s Fitness UK

Thanks to Ultimate Performance my filming of the BBC TV show "Hustle" went incredibly well and the producers were overjoyed with the outcome

Chook Sibtain, Actor

Anyone who trains at Ultimate Performance can be assured of some proper training, which requires effort to reach their goals and not fobbed off with a watered down session and a gossip as with every other personal training gym I have seen!!!

Dave “Bulldog” Beattie, World Powerlifting Champion, Trainer of Strongest Man in the World.

I am extremely lucky to of had such a wonderful and respected teacher as Kostas Stavrev to help with all my physical requirements. He is a fantastic source of encouragement; is intelligent, detailed and motivating and I continually seek his advice and expertise on all athletic issues.

Perry Suckling, Tottenham Hotspur Goalkeeping Coach