Introducing the CrossFit 020 team

Meet the fitness experts ready to help you achieve your fitness goals.

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About
CrossFit 020

Our team of fitness and nutrition professionals are invested in your health. We make every decision with our members’ well-being in mind. Achieve your goals with us!

The Team

01

Jeroen van Duijn & Kees Houwaart

Owners

The Genesis: Erwin van Beek Erwin van Beek was a man always on the move, both as an individual and as an athlete, with an unquenchable passion for fitness. After two decades in competitive sports, he stumbled upon CrossFit in 2007 and was instantly hooked. His dedication and expertise caught the eye of Pat Sherwood from HQ CrossFit in the United States. When the opportunity arose to establish a flagship CrossFit box in the Netherlands, Erwin was the natural choice. In 2012, the doors of CrossFit 020 swung open. With a well-thought-out long-term plan, the gym focused on a group-centric yet individualized approach to fitness. From the moment you walked in, you became part of a community that prioritized quality training in a no-nonsense, ego-free environment. The Transition: Kees Houwaart & Jeroen van Duijn As Erwin’s legacy continued, the torch was passed to Kees Houwaart and Jeroen van Duijn, two individuals equally passionate about fitness but with their unique journeys. Kees Houwaart was practically born into the fitness world. Growing up in a family that owned a top-tier gym in Katwijk, he was no stranger to the clang of barbells and the heft of dumbbells. After experiencing the transformative power of CrossFit in 2012, he founded Gymbox Noordwijk in 2014, the first CrossFit-focused gym in the area. Jeroen van Duijn, on the other hand, transitioned from a career in Corporate Finance to pursue his passion for fitness. His journey took him as far as Chile, where he trained people and taught nutrition. Upon returning to the Netherlands, entering the fitness industry felt like a natural progression. The Partnership That Built a Network Kees and Jeroen’s paths crossed in 2013, and they instantly connected over their shared love for fitness and community. In 2015, they teamed up with Coach Jeroen van der Most to co-found CrossFit Leiden. This trio laid the groundwork for what has now blossomed into the Creative Sports Company network of gyms. Though Jeroen van der Most took a different route in 2020, fate brought the original team back together in 2023. Today, CrossFit Leiden stands as a testament to the power of community, passion, and entrepreneurial spirit. It is a place where fitness legacies and entrepreneurial spirits unite to create a community of champions.

02

Erwin

Founder

With a career that began in the military and military police, Erwin has 25 years of experience in training and research, specializing in physical and combat training for police and military units. He works globally as an advisor and instructor, focusing on close combat and tactics, including firearms. His development of the F.I.R.S.T program and customized violence control programs reflects his profound knowledge. Erwin has also achieved impressive sports performances, including 17 national judo medals and participation in the Crossfit Games.

03

Jan

Coach & Box Manager

Jan Witteveen! With his passion for weightlifting and a rich background in sports, Jan is ready to elevate you to new heights. He has built an impressive reputation as a weightlifting and gymnastics coach and brings a wealth of experience. His coaching career began as a gymnastics coach, and after a detour into another career, he returned to coaching six years ago. Jan co-founded WOW, a gym that focuses exclusively on weightlifting and expanded into a CrossFit/weightlifting gym in 2021. His vision is to create a community where members feel at home and enjoy working on their physical and mental goals.

Fabian coach at CrossFit 020
04

Fabian

Coach

Fabian studied “Sport, Management, and Entrepreneurship” at ALO Amsterdam. He began his career as a fitness trainer and instructor in 2005. Since 2012, he has served as the head trainer and personal trainer at Reebok CrossFit 020. In collaboration with Erwin van Beek, he has developed multiple training programs, coaching methods, and projects. His specialties include coaching methodology and didactics, nutrition, movement analysis, weightlifting, and sports psychology. His most recent development is the Rewire Project (2017), a 12-week program focusing on training, nutrition, and mental resilience.

05

Joanneke

Coach

Meet coach Joanneke, a true inspiration within the CrossFit community. Her fitness journey began as a member of CrossFit 020, where she quickly developed a deep passion for Olympic weightlifting. During her time there, she not only improved her skills but also discovered her desire to share this passion for CrossFit with others. Joanneke started her coaching career at a CrossFit box in her hometown before moving to CrossFit 020 as a coach. Known for making every training session the best hour of your day, she gives classes with passion and a smile. In addition to her dedication to CrossFit, Joanneke studies criminology, enhancing her analytical and critical thinking skills. Her favorite CrossFit movement is the clean, and she believes she performs best after enjoying a quality burger. Joanneke’s combination of academic acumen and love for CrossFit makes her a unique and valued coach in our community.

06

Sven

Coach

 

Meet Sven, the friendly face with the big smile that lights up every training session! With over six years of experience as a personal trainer and coach, Sven brings a wealth of knowledge and energy to our community. A fitness enthusiast since his younger years, he studied sports and health and firmly believes that a healthy lifestyle is within reach for everyone—no matter your age. His motto? It’s never too early or too late to start crushing your goals!

Sven’s love for CrossFit runs deep, but let’s be honest, nothing gets him more excited than a good bench press session. Outside of the gym, you’ll find him cooking up something delicious, jamming out to his favorite tunes, or heading into the great outdoors for some adventure.

Sven’s positivity and passion for helping others make every workout with him a blast. Ready to train? Sven’s got your back—now let’s get to work on building that healthier, happier you!

 

07

Mike

Coach

Meet Mike de Boer, a coach with a remarkable background and a deep passion for health and fitness. With 8 years of service in the military as an infantryman, medical caregiver, and law enforcement officer, Mike has gained invaluable insights into physical and mental resilience.

On top of that, he brings over 12 years of experience as a dedicated athlete and extensive knowledge of the nervous system and biochemistry. This unique combination allows Mike to understand how the body and mind work together, taking health and fitness to a whole new level.

Mike isn’t just a coach—he’s a guide on your journey to becoming stronger, healthier, and more balanced. Whether you’re aiming for greater strength, improved endurance, or simply feeling your best, Mike is here to help you achieve your goals!

 

08

Annie

Nutrition Coach

Meet Annie Schwick, a coach with a wealth of global fitness experience and a passion for helping others transform their lives through nutrition and training. Annie’s fitness journey began in her early 20s, and over the years, she’s worn many hats: Group Exercise Instructor in London, Les Mills Master Trainer and Gym Manager in Dubai, and CrossFit Coach in the Netherlands. Now settled in Norwich, England, Annie shares her expertise through KNOWCROS health & fitness coaching, which she founded in 2020.

Annie’s personal story is just as inspiring as her professional one. After becoming a mother in 2013, she felt her physique didn’t reflect her dedication to fitness. Determined to understand the connection between food and performance, she dove deep into nutrition. Through trial, error, and eventually working with an online coach, she discovered the power of flexible eating and building sustainable habits. Annie learned that it’s not about restrictive diets—it’s about creating a lifestyle that supports your goals.

With her expertise in both training and nutrition, Annie’s mission is to help you unlock your potential, whether it’s improving your body composition, boosting your performance, or simply feeling your best. She’s here to guide you every step of the way!

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We can’t wait to meet you

Chat with a coach at our gym to learn more about what program will fit your goals.

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