about us
At BeastMode-On, everything revolves around growth; Physically and mentally. Discover who we are and what we stand for.
Whatever your goal is – a triathlon, a marathon or simply standing stronger in life – we will guide you step by step. With personal attention, mental coaching and an approach that goes beyond training alone.
THE MISSION
FROM BMO
We understand that the road to achieving these ambitious goals is often filled with mental obstacles and insecurities. Our mission is to remove these obstacles by providing comprehensive support—from registration to equipment advice and mental guidance. We want to empower people to break free from the limitations they impose on themselves, so they can overcome their fears and unleash their true potential.
THE ORIGIN
FROM BMO
At BeastMode-On, we believe that every person has untapped potential waiting to be discovered. Our journey began with a simple observation: many aspiring athletes face invisible barriers that prevent them from taking on athletic challenges, whether it’s running a half marathon or completing an Ironman race
THE VISION
FROM BMO
Our vision is to create a community where individuals can begin their athletic journey with confidence, knowing they have the tools and encouragement they need to succeed. We offer a full mentorship program, tailored to those who want to push their limits, ensuring they are not only physically trained but also mentally prepared to excel in athletic challenges.
Susan de Wit
Founder
As the founder and driving force behind BeastMode-On, I am the organizational spider in the web and your first point of contact. From the first message to the last rep – I take care of it. With full energy, I ensure that everything runs smoothly, so that you can focus on getting the best out of yourself. Whether you have doubts, questions or are just curious: I am the one who will help you on your way to your BeastMode-on.
Stefania Nalmpanti
Nutrition coach
Stefania Nalmpanti is an experienced fitness and nutrition coach based in Leiden. With a background as a professional water polo goalie and an academic degree in Physical Education and Sports Science, she combines her passion for exercise and nutrition to help others achieve their health goals. Stefania offers personalized coaching focused on developing sustainable eating habits and effective workout routines, with the goal of making clients stronger physically and mentally.
Onno de Boer
BeastMode-On Architect
Het verhaal van Onno volgt binnenkort!
Karin Sloove
Clinic Guru
Karin's story will follow soon!
Rob Webster
Trailrunning Guide
Rob Webster is our trail running expert, based in England's mountainous Lake District.
He is a qualified mountain guide and rock climbing instructor with over 20 years of experience exploring trails and mountains in various parts of the UK. Rob has competed in events ranging from 5km to ultramarathons and Ironman triathlons. His most recent achievement was completing a 126km traverse of Gran Canaria in 21 hours.
OUR TEAM
Driven experts who help you push your boundaries.
WHY YOU
CHOOSE US
Complete care
From event registration to travel planning and hotel booking, at BeastMode-On you only have to focus on your training. We take care of all the practicalities surrounding your challenge.
Coaching
Trainers and coaches are physically present at your events. You are never alone. Both in preparation and on the day of the competition, you have a team behind you.
Scientifically substantiated
Daily insights via HRV measurements ensure optimal balance between training and recovery. No blind schedule, but data-driven coaching for maximum progression and minimal chance of injuries.
Custom made
You get a plan that fits your body, life and goal—but at the same time you are part of a motivating community of like-minded people. Personal growth with shared fire.
Holistic guidance
BeastMode-On is more than a training schedule. You get mental coaching, physical guidance and practical support—all tailored to your personal process.
Nutritional guidance
Based on your training phase, HRV data and goals, you will receive nutritional tips and guidance that really contribute to performance, recovery and energy levels—without restrictive diets.
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