Request a Free ConsultationFree consultation
Onur Deyirmenci in a strength training gym

Personal training / Online coaching

Personalised coaching built around your goals, experience and lifestyle to help you get stronger, improve your physique and build lasting confidence.

Request a Free Consultation
Based inSouthwarkLondon · UK
Certified by EuropeActive, EREPS, British Weight Lifting, Fitness Mentors International and IFBB Federation; as seen in Ironman Magazine

01Ways to work with me

Two ways to build a better you.

Southwark · Central London

1-to-1 personal training

Personalised face-to-face coaching for better technique, strength, physique and confidence, with structured progression and hands-on support.

Train with me in Southwark
Real client coaching
Coach with me from anywhere

Online coaching

Fully personalised training, nutrition guidance, regular check-ins, progress tracking and ongoing support through the coaching app.

View coaching options
Onur Deyirmenci posing on a men's physique competition stage
Onur Deyirmenci competing in men's physique

02Experience behind the coaching

Built through sport. Refined through coaching.

More than 15 years of training experience shape every session, every programme and every adjustment.

Triple jump built my athletic foundation. Olympic weightlifting developed strength and precision. Bodybuilding sharpened my understanding of physique development. Today, that experience becomes personalised coaching built around the person in front of me.

Professional qualifications

  • EREPS Level 5 Health Specialist
  • EREPS Corrective Exercise Specialist
  • FMI Medical Exercise Trainer
  • J3U Level One Certification
  • BWL Level 1 Award in Coaching Weightlifting
  • BWL Level 2 Certificate in Coaching Weightlifting
  • IFBB Bodybuilding 3rd Degree Trainer
  • CDR Fitness Nutrition Specialist

Coaching expertise

  • 1-to-1 Personal Training
  • Online Coaching
  • Personalised Training Programmes
  • Strength & Functional Training
  • Bodybuilding & Physique Development
  • Corrective Exercise & Movement Quality
  • Progress Tracking & Check-ins
  • Nutrition Guidance

Coaching capabilities, not package inclusions. Check-ins and nutrition guidance depend on your chosen programme.

Published in Iron Man

Iron Man World magazine cover
Iron Man World explosive strength article by Onur Deyirmenci
Iron Man Türkiye magazine cover
Iron Man Türkiye client training feature by Onur Deyirmenci
Iron Man World running issue cover
Iron Man World running article by Onur Deyirmenci
Iron Man Türkiye cover and race training feature

03Real work. Real coaching.

Clients in action.

What my clients say

Verified Google reviews
5.0DEY Coaching · 20 Google reviews

Showing all 20 reviews

Gökçen NurluGoogle review

Really happy with my personal training sessions. The workouts are challenging but manageable, and I’ve noticed real improvement in my strength and confidence. Onur is encouraging, attentive, and makes each session feel worthwhile!

Bahadir TuluceGoogle review

Absolute legend 👑 the man knows his stuff. I've been training with Onur for 3 years and I'm genuinely grateful for how much he's contributed to my progress. Always knows when to push me harder and doesn't let me settle for less. Exactly what you need if you actually want to improve! Great motivator and seriously knowledgeable.

Adreena AngelaGoogle review

I’ve been training with Onur for a year and I’m so happy with his work. I’ve noticed a change in my body and my strength, but at someone who was initially nervous with weight training, he is really friendly and supportive and always pushes me to do my best. I actively look forward to the gym now and I’m grateful to him for how he has helped to me improve!

KCGoogle review

I can’t recommend my personal trainer highly enough. He’s kind, patient, reasonable, and genuinely cares about the person he’s training. What I appreciate most is that there’s never any pressure to push harder just for the sake of it or to satisfy his own ego. He listens, pays attention to how I’m feeling, and always puts my safety and wellbeing first. At the same time, he knows when to encourage me and challenge me in a way that feels appropriate and achievable. It’s clear that his focus is on helping me become stronger and more confident in a safe, sustainable way. I always feel supported, respected and in very capable hands. I’m really grateful to have found such a thoughtful and professional trainer.

Rose PetrovaGoogle review

This was my first time enlisting a personal trainer despite training consistently for a few years and I must say I truly saw and felt the difference. I was given a clear routine alone with nutritional advice and met my goals much faster than I assumed I could! Onur’s fair but also friendly approach guarantees results. I would highly recommend and the service is very reasonably priced for central London.

Lisa MalbrecGoogle review

I met Onur 4 years ago and he helped me begin my fitness journey. Without him I wouldn’t be where I am now! he’s the best personal trainer ever, he always pushes me and has helped me get stronger over the years, be always answers my dm and he always has great advice, I highly recommend him

ClaireGoogle review

I met Onur when I was still a beginner at the gym. He came to me to gently correct my form and suggest how I could improve my training, and he’s been following up with me ever since! You can tell he’s truly passionate about helping people achieve the best version of themselves, and he always brings so much positive energy and enthusiasm to training sessions. He’s fantastic in pushing me very hard beyond my comfort zone to achieve great results, yet he does this with a kind and supportive attitude that makes the effort sustainable. His knowledge and experience of different areas of fitness are exceptional, and he is able to optimise any personal training to perfection according to your particular goals. He’s also such a wonderful and kind person to be around, inside the gym or out :) You will absolutely not regret training with Onur!

Christina SimionGoogle review

“LIFT HEAVY” is probably the words you’ll hear the most when training with Onur 😂 When I first started, I was honestly quite skeptical, anxious and shy. Like many girls, I was worried that lifting heavy would make me look bigger. But it actually did the complete opposite. It completely changed my body, my strength and, most importantly, my confidence. Onur completely changed the way I feel about the gym. I used to feel so uncomfortable and unsure of myself, but he took the time to show me how to use the equipment, made sure I felt comfortable, and created a programme that actually worked for me. But Onur isn’t just a coach. He genuinely cares, he listens, and he always knows when to push you a little harder. He constantly encourages you to be better, work harder and believe in yourself, even on the days when you don’t feel like you can. I honestly couldn’t recommend him enough. He’s not only helped me become stronger physically, but has completely changed my mindset towards training. If you want to become the best version of yourself, Onur is the person you want by your side!

Alexandra NorodomGoogle review

Onur is one of the best trainers I’ve come across and I can’t recommend him enough! I started sports at a young age and managed to stay injury free until a ski accident as an adult resulted in a torn ACL. I was looking for a personal trainer that had extensive experience with athletes and who had a holistic approach to strength and conditioning now that I was a little older. Onur is more than qualified across various aspects of strength and conditioning training and his approach to training is how it should be: first do it well, then do it more! He has a kind and inclusive way of coaching, which has given me the self-confidence to keep pushing during our sessions. He makes sure to check-in on your nutrition, your sleep, and other lifestyle components to make sure he is applying a 360 approach to your training. Finally after 7 years of physiotherapy, Onur is the only person to have gotten my knee back to where it was, If not better, and in less than 6 months! I’m very grateful to Onur for everything. See you next week Onur! 💪💪💪

Duncan TrenholmeGoogle review

After having reached a plateau with my training and lacking any inspiration on what to do next I was introduced to Onur through my wife who was already working with him at the gym. We've now been lifting together for the last 4 months and I've been super impressed with what we've been able to achieve. Onur has an infectious enthusiasm that is incredibly motivating and with his direction and experience I've seen huge progress in both my strength and explosive power. I'd always struggled with my technique, was worried about getting injured, and also unsure about how to train to achieve my goals. It's been great to have someone with such extensive experience planning my sessions so I can just concentrate on working out. He's a great teacher, who's vast experience and knowledge shines through in every session, and knowing that he is watching all my training to ensure good form has given me the confidence to push my limits. Honestly I can't recommend his services enough to anyone looking for someone to help them with their training. 5 stars really isn't enough, should be at least 10. Thanks Onur!

john brasingtonGoogle review

Onur is fantastic. I was a regular at the gym before, but after breaking 6 bones I didn't think I'd ever get back to normal. But now I'm getting there and doing things I'd never tried before. Super friendly and flexible. Sessions are hard but always satisfying!

Chenchen ZhangGoogle review

Onur is really nice person. Helps me lots on training and body build. Cares about everything during the training. Love the massage after tho.Lmao

Dina AmirgaliGoogle review

Onur is helping me to recover from Covid. He has given me enough variety of exercises and professional care to be able to recover from this idiotic disease. His training and personal experience can help pretty much anyone who needs to recover from any kind of injury and/or PTSD, as well as eating disorders. We have been doing a lot of dynamic stretching, endurance, cardio, HIIT and boxing workouts. I also eat berries during the workout, which he doesn’t mind even though it’s pretty weird. He’s also able to give advice on any other non fitness related matter to improve mental health and quality of life. 5/5 would recommend.

Ailar KashanGoogle review

I have struggled with my weight for years and have numerous times joined the gym and stopped due to not being motivated. I decided to give it one more try and contacted Onur for 1:1 session. At the first session we discussed my underlying health issues and my goals and what I want to achieve. He is super knowledgeable person, so we looked through all my blood tests to discuss how to tackle my weight the right way. 6 weeks on I am loving every single session and feel super motivated but what’s amazing is that my last blood tests showed that I have reversed one of my underlying health issues which I had struggled to control for 3 years. Onur makes the sessions fun, enjoyable and has a personal approach according to your needs. He uses Polar Band which monitors training progress by tracking relevant metrics and it helps to keep me going as I can see how much calories I burn at each session and at the end of the session he uses Theragun to help with stress and sore muscles. Since I’ve started, I’ve lost 12 kilos (2stones) and lost several cm from my waist but also feel much stronger physically. Even when I have days where I feel the goal is difficult to reach, he always spares a few minutes to sit and reassure me and remind me how far I have come. Besides my physical health, his sessions have really helped with my confidence, sleep, asthma and overall wellbeing. I 100% recommend Onur, he is a fantastic personal trainer and no matter whether you need sessions for weight loss, muscle strength or anything else – he is the best guy to go to in London!

Lazara MorganGoogle review

I have had several personal training sessions with Onur and have found them to be high-energy, invigorating, and varied workouts. He is incredibly thoughtful, thorough and tailors each session to your personal goals. I am impressed with the changes to my physical appearance and personal strength in just a short space of time. Thank you Onur for your commitment and hard work. I would recommend 1K Pro Training wholeheartedly.

Melanie DeBenedettiGoogle review

If it were possible to give this man 300 stars, I would have. Not only is he a professional personal trainer that pushes you to do your best and reach all physical goals, he is also a great friend that will not let you quit, stop you from being lazy and make you see the impossible. After each session with him, I feel more confident, energized and empowered. And there is nothing that beats that feeling! Thank you for believing in me and pushing me to achieve incredible results. I am thrilled to continue this fitness journey with you!!!

zoe sterlingGoogle review

Onur is very helpful and supportive as a trainer. He has helped me build a plan with goals that has kept me motivated. He is also really thorough with explaining exercises and is very knowledgeable on fitness/health and lifestyle in general.

Gihani SenanayakeGoogle review

Onur is professional, knowledgeable and a dedicated trainer; his medical knowledge and knowledge of fitness is outstanding and he can achieve results, no matter who the client is. He takes a holistic view of all his clients and aims to improve their lifestyle and not just their fitness. I have gained more muscle mass and lost fat in such a short period of time and I am very grateful for Onur's services! Definitely would recommend! 10/10

Nejo “The void”Google review

I lost 40kg in 6 months due to Onur's great regime and workouts, his knowledge and experience was amass! He is a great guy and always is available for any questions day and night, the journey wasn't easy but Onur is a great motivator as well as a fitness trainer

baki erdenGoogle review

I have done a couple of sessions with him. He motivates you. Gives great advice. He pushes you to do your best. I would recommend him to anyone looking for a trainer.

04 Coaching & pricing

Find your way to train.

Face-to-face personal training

From £70Per session with the 12-session monthly package

Single sessions £85 · Muscleworks Southwark

DEY Training Program

£59/month

For people who want structure while training independently.

DEY Premium Online Coaching

£139/month

For people wanting closer ongoing support.

Muscleworks Southwark · Central London

Train with me in Southwark

1-to-1 coaching takes place at Muscleworks Southwark in Central London.

110 Southwark St · London SE1 0TAGet directions on Google Maps

Take the first step

Ready to build
a better you?

Tell me where you are now and where you want to go. Your first consultation is free — no pressure, just a conversation about your goals and the best way to get there.

We use your details to reply to your request. Privacy & cookies