Workouts

Full of Energy. Full of Power. Real Results.

Unleash your strength in this intense full-body workout using the punching bag.
Bag Boxing combines powerful punches, explosive movements, and nonstop action to boost your endurance, sculpt your body, and release stress like never before.

Perfect for all levels — this class focuses on technique, stamina, and fun.
With high-energy music and motivating trainers, you’ll leave every session feeling stronger, fitter, and more energized.

Reach your goals — one punch at a time. Book your class now!

Learn the fundamentals, build your skills, and feel the power!
This class is all about mastering proper boxing technique while training with the punching bag. You’ll learn basic punches, defensive moves, and footwork in a fun and structured way — perfect for beginners or anyone looking to refine their technique.

Expect a mix of technical drills, combinations, and short conditioning blocks to improve your speed, coordination, and confidence.
No sparring — just you, the bag, and the satisfying sound of solid punches.

A 60-minute boxing class designed especially for beginners, where you’ll learn the fundamental punching techniques.
The focus is on bag work with clear combinations, supported by bodyweight exercises. While the emphasis is on learning proper technique, the pace stays intense!

Expect a solid workout — sweat guaranteed!

Learn the fundamentals, build your skills, and feel the power!
This class focuses on mastering proper kickboxing technique while training with the punching bag. You’ll learn basic punches, kicks, defensive moves, and footwork in a fun and structured way — perfect for beginners or anyone looking to refine their technique.

Expect a mix of technical drills, combinations, and short conditioning rounds to improve your speed, coordination, and confidence.
No sparring — just you, the bag, and the satisfying sound of powerful strikes.

Sharpen your skills. Master your movement.

This class is all about precision, control, and technical growth.
Whether you’re a beginner or looking to refine your technique, Kickboxing Technique focuses on perfecting punches, kicks, footwork, and combinations in a focused setting.

Expect detailed coaching, partner drills, and personalized feedback to help you build a solid foundation and elevate your performance.
Less cardio, more control — ideal for anyone serious about learning the art of kickboxing.

Train smart. Move better. Book your spot now!

Precision. Power. Progress.

Step into the ring of skill and discipline.
This class focuses on mastering the fundamentals of boxing — from perfecting your jab and cross to refining your footwork, timing, and defense.

Led by experienced coaches, each session combines technical drills, partner work, and controlled movements to help you develop sharp, effective boxing techniques in a focused and supportive environment.

Ideal for all levels — whether you’re new to boxing or ready to take your technique to the next level.

Train with focus. Punch with precision. Book your spot now!

Push your limits with Heavy Bag Endurance — a high-intensity class that combines powerful punches, endurance intervals, and full-body strength training.

Perfect for all levels: you’ll punch, kick, and strike your way to greater stamina, strength, and stress relief. Our experienced trainers guide you through every round to maximize your results and boost your confidence.

Ready to train harder, last longer, and reach your fitness goals? Book your spot now!

Put the techniques you’ve learned on the bag into practice with a partner.
Under the guidance of a coach, you’ll work on developing your sparring skills — learning how to defend yourself, throw clean punches and kicks, and move with control.

Safety always comes first, and all sparring sessions take place in a respectful, friendly environment.

Not for beginners: participants must have completed at least 50 bag training sessions.
Shin guards and mouthguards are required (available at Underground, or bring your own).

Full of Energy. Full of Power. Real Results.

Unleash your strength in this intense full-body workout using the punching bag.
Bag Kickboxing combines powerful punches, explosive kicks, and nonstop movement to boost your endurance, sculpt your body, and release stress like never before.

Perfect for all levels — this class focuses on technique, stamina, and fun.
With upbeat music and motivating trainers, you’ll leave every session feeling stronger, fitter, and more energized.

Reach your goals — one punch at a time. For women only.

Your Time. Your Pace. Your Power.

Open Bag Training gives you the freedom to practice your kickboxing skills on the bag at your own pace.

Whether you want to refine your technique, work on combinations, or simply get a good sweat — this is your moment to move the way you want.

You’re in control of your training.
Suitable for all levels and perfect as a complement to your regular classes.

Step in, gear up, and unleash your power.
Book your bag now!

Get ready for the fight of your life with our 16-week Ring Ready program!

Throughout this program, you’ll take a dedicated weekly Ring Ready session in a small group, led by professional fighters. In addition, you’ll train BAG BOXING twice a week and add a SPARRING session as your fourth session. Of course, you can tailor your training to the areas where you want the most development.

On top of that, we offer exclusive mental training and sparring exchanges to prepare you fully for the fight. Your Ring Ready coaches will be in your corner — including on fight night.

Interested?
Email info@undergroundsportclub.nl for more information and to sign up!

Get ready to feel the burn!
Booty Burn is an energetic lower-body workout designed to shape, lift, and strengthen your glutes — while also toning your legs and core.

With a mix of bodyweight exercises, resistance bands, and targeted movements, you’ll feel the burn exactly where you’re supposed to.

Expect a fun playlist, plenty of encouragement, and a serious boost to your strength and endurance.

Perfect for all levels — come ready to sweat, sculpt, and leave stronger than ever!

Fast. Fierce. Effective.

Get your heart rate up and burn serious calories in this high-intensity interval workout.

Cardio HIIT combines explosive movements with short recovery periods to push your limits and boost your fitness fast.

Expect a mix of bodyweight exercises, functional training, and cardio drills — all set to motivating music and guided by a coach who keeps you moving and challenged.

Suitable for all levels and guaranteed to leave you sweaty, smiling, and stronger.

Turn up the intensity. Book your burn now!

Train Free. Move Fully. Make It Yours.

Open Gym Training gives you full access to our space and equipment, so you can train your way.

Whether you’re following your own program, making up for a missed session, or just moving at your own pace — this is your zone.

You set the pace and the focus.
Perfect for independent training, refining your technique, or adding extra mobility and strength work.

Make the gym your playground. Book your time now!

Powerful Moves. Serious Results.

Build muscle, burn fat, and boost your endurance in this intense 45-minute strength workout. Strength 45 combines challenging resistance exercises with quick intervals to raise your heart rate and make your body work to its max.

Expect a mix of dumbbells, kettlebells, resistance bands, and bodyweight exercises — all focused on technique, strength, and performance. Each session is designed to challenge all levels and make you stronger every time.

Train hard. Lift smart. Book your session now!

A one-hour duo training session with one of our trainers, fully focused on your shared goals and pace. During this session, you’ll both have the opportunity to ask questions, create a personalized training plan, and work on your areas for improvement together.

Availability and scheduling will be arranged with you and your preferred trainer.

Help your teen get moving, build confidence, and grow stronger with our kickboxing program for ages 12 to 16! Perfect for beginners and for teens who want to improve their skills in a fun and supportive environment.

– Professional coaching tailored specifically for teens
– Focus on fitness, discipline & confidence
– A safe and motivating training space

Spaces are limited — sign up today and let your teen discover their inner fighter!