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Would you like to become a stronger version of yourself? In my private studio in Dordrecht, the focus will be completely on you and your goals! Not only during training, but also in the off-hours you will get personal coaching regarding sport, lifestyle, and nutrition. Kolsteren Sportcoaching offers different kinds of training. Take a look at our subscriptions!

Personal training

Do you find it hard to stay consistent when it comes to working out? A lot of people experience that same issue. You decide how you would like to get started with your personal training. We can train one-on-one, or you can take a buddy with you.

Duo training

Training together strengthens our bonds and connects us in ways we have not expierenced before. With duo training, you will have all the advantages of personal training and you split the cost! Haven’t got a buddy to train with yet? Sign up, and we will match you with a buddy who has similar goals to yours!

Cardio boxing

Did you know that with 45 minutes of boxing, you burn around 700 calories? At cardioboxing we work on technique and stamina, in a group of 4 to 6 people. Due to having a small group, we have the luxury to be able to give enough advice and attention to everyone individually.


Working outside together under the supervision of a certified personal trainer. The dynamics of the group provide energy and there is no better air than in the outdoors! Work on your physique and dexterity with the team to complete the specified challenges within the time frame.

About me

My name is Dion Kolsteren. I am the founder and owner of Kolsteren Sport Coaching. I am a verifiably certified personal trainer for the starting-, advanced-, and professional sportsperson. I will help you make working out a healthy habit!

Why personal training?

This is what you can expect from my personal training and coaching:

  • Long lasting and sustainable results in terms of fat-loss, muscle gain, energy, and overall stamina.
  • Coaching from a certified personal trainer who is also available for any and all questions outside of your regular scheduled training sessions.
  • Personalised advice on how to incorporate a healthy lifestyle into your busy daily schedule.

Get in touch!

Would you like some information, no strings attached? Please don’t hesitate to call, text via Whatsapp, or contact me through e-mail.

Costumers about kolsteren sportcoaching

Veronique van BokkumVeronique van Bokkum
15:59 12 May 22
Great Personal Trainer who knows what he is talking about!Customer-oriented and always good guidance.Both privately and in the gym.
Miranda de BusMiranda de Bus
08:52 13 Jan 22
I have been training with Dion since May '21. First especially outside, at the most beautiful locations in Dordrecht such as the Wantijpark and on the Schuttevaerskade. He taught me the basics and techniques of boxing. It's great that he is so patient and feels good about what suits my level and goals, which means that the training is really tailor-made. Now that we train indoors and he has his own beautiful gym that is fully equipped, we mainly focus on strength and working towards my goal to be fitter for a mud run in which I will participate in October. Dion has made an appropriate program and sets of exercises and keeps track of my progress. I would recommend him to everyone, he is knowledgeable, thinks along with you, radiates peace and motivates you to go to the extreme.
Bernd van BuurenBernd van Buuren
14:36 04 Jan 22
What a great Coach. Kolsteren gives you training, guidance and advice. He is not only a good workout coach but also gives you the right advice to get and keep your body in good position with the necessary home workouts and relaxation exercises.Very satisfied ! Highly recommended!
Thamar KolsterenThamar Kolsteren
13:03 04 Jan 22
Excellent personal guidance throughout my challenge to become and remain fit and healthy. Highly recommended 👌

Welkom bij Kolsteren Sport Coaching. Ik bied personal- en groepstraining aan.

Ik ben een aantoonbaar gecertificeerd personal trainer voor de beginnende, gevorderde en professionele sporter.