I'm Stefan Helwig.

I believe in freedom to move ideally, on land and in water. I believe in independence to do whatever sport you like, no matter your age.

This is what makes me get up every morning to plan, test, sometimes crash and rethink ideas.

I love digging my teeth into problems and developing the best solution for you.

You will be able to trust the skills you build with our PFS Concept – and remember them for life.

When you get up in the morning, you can trust yourself and your body to do anything you want. That is why we do this.
I've never been a professional athlete and I rarely was among the best in gym class (Badminton aside). I know how it feels to be picked last for a team, but I still found the sports that I like and keep on doing. The key is passion, and my job is to kindle that passion in you.
I've been doing endurance sports for almost 17 years now, starting with running, adding mountain-biking, road cycling and swimming to the mix later. I know a thing or two about racing.
Before I became a Coach, I worked 7 years as a translator and copywriter. I know how an office job feels and what that can do to your body. That factors into your training.
My hobbies include triathlon, music (playing drums with The Halo Trees) and martial arts (Aikido and Krav Maga).
I think my biggest personal achievement is completing the "Mammutmarsch" successfully: Walking 100 kilometers within 24 hours.

Why me?

PASSIONATE – You will soon realize, I not only talk about endurance sports, I live it. And for my athletes, the approach is the same as for my training: I keep going until we see results.
RELIABLE – I'll be there for you, and I expect commitment and open communication from you. To get you to your goal, I need to know who and what I'm dealing with.
HONEST – I walk the talk, but I'm no drill sergeant. You can expect honest feedback from me, and when I tell you to bash your teeth in on that interval, I mean it. But for most of the time, I want you to have fun and enjoy the process, so humor will always be included.
HUMBLE – My goal is performance increase, but the only one I want to beat is me. There's no bigger possible compliment for my clients than to crush my own PBs.

A Video Story about my Work


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  • I work in research and education and I have two kids in primary school. For years I've tried to get back into a fitness routine, but I kept telling myself that I had no time or money to work with a Personal Trainer. I've been working with Stefan since October 2019 and I feel healthy, strong and well again. Gyms closing because of Covid is a challenge, but 1-on-1 trainings at home or outdoors are the perfect remedy in these trying and stressful times. I can recommend Helwig Personal Training without reservations!
    Allison Berger
  • Stefan enabled me to restart running after a long period of injury, and he always responded quickly and flexibly to my problems. A Coach to recommend!
    Emil Scholten
  • Stefan is really nice and relaxed and taught me freestyle swimming technique in a very short amount of time.
  • The Training with Stefan is well organized and fun. From the initial call to the free consultation and the personal coaching sessions, the training has been professional and enjoyable. I'm very satisfied and can recommend Stefan as a Coach without reservations.
  • I like the flexibility with Stefan. Thanks to a Cross Training approach, my core is much more stable and I have finally learned the correct freestyle swimming technique at over 50 years of age. Stefan works with continuous improvement and he is really happy with the progress you make. This is just great fun!
  • The 7 day freestyle swim challenge was a unique experience for me! I would have never thought that I could learn to move confidently and effectively in the water in such a short time. I would have never dreamed about learning freestyle in such a short time. I found a very good and effective training process behind the challenge that works even for non-naturals like me. I have not only improved my swimming technique, the additional strength and mobility exercises were helpful for swimming and my days in the office. Stefan carefully explained the purpose of each exercise and its effects. For the first time ever, I received an effective training program for swimming. Thanks to Stefan, I now have fixed dates for swim training in my calendar. Stefan is a really sympathetic and experience Coach, thanks for everything!
  • I started working with Stefan in January. Today I ran my first marathon, much faster than I thought!
    It's a super training, you get a partner who's there for you whenever you need him. He accounts for everything and pushes you to new heights with every personal training session. I've felt such a big improvement since January and there's no end in sight.
    So if you want a training program that's perfectly tailored to you and explained in detail, you've come to the right place. I can only recommend it: Invest in yourself and everything is possible, and Helwig Personal Training is the place to get it.
    Thank you, looking forward to the next months 😎
  • Stefan is highly committed to the mission to see me swim and live my reality. He is professional, empathetic, expert in teaching me how to swim and helping me to overcome my fear of water. I would highly recommend Stefan as a swim coach.
  • I think very positively about the coaching with Stefan. Training is always fun, thanks to the competence, flexibility and friendliness of the coach.
    a long-distance triathlete
  • This is my second year working with Stefan, and it's the first time I've kept going for that long. The training is effective and fun. And Stefan is just a really cool guy.
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Stefan Helwig

run faster | swim better

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