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Smash Gyms Martial Arts
Jiu-Jitsu | Kids Martial Arts | KICKBOXING | KETTLEBELL | KRAV MAGA
Smash Gyms
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The Smash Gyms Brazilian Jiu-jitsu program includes a systematic blend of Jiu-jitsu, Wrestling, and Judo into a complete grappling system that will safely progress beginners at an accelerated pace. Our system is designed as a path for the average person to progress safely and quickly into an expert grappler. The system has proven to be highly effective in both self-defense and Brazilian Jiu-jitsu sport competition. You will find our unique Jiu-jitsu classes are presented in a format highly conducive to learning while maintaining a strong focus on safety.

Smash Gym's Brazilian Jiu-Jitsu program is taught by Michael Jen. A Third Degree Blackbelt under Joe Moreira, Michael Jen brings 20 years of experience in Brazilian Jiu-Jitsu. One of the first 50 American Brazilian Jiu-jitsu Black Belts, Michael has also earned his brown belt in Judo and Japanese Jujitsu. 

Michael's reputation is that of a top notch instructor. Smash Gym's BJJ curriculum was designed by Michael based on systems identified and developed through his 20 years of training in Brazilian Jiu-Jitsu. While Michael was progressing through the ranks he was fortunate enough to have the unique opportunity to train with over 11 different black belt instructors. This invaluable experience helped him to see many perspectives from every scenario and choose which techniques worked best for him. Through teaching hundreds of students over the years he formulated a system of teaching designed to help students progress quickly and safely. Through the curriculum you will be taught the techniques outlined and identified that are required to progress quickly all the way to the top levels of jiu-jitsu. The core of the techniques being taught can be applied both in gi and no-gi grappling. Our beginner friendly Brazilian Jiu-Jitsu classes are also designed to be fun, safe, and great exercise! 

Other instructors in the Brazilian Jiu-jitsu, Judo, Wrestling Program include...

  • Jacob Palomino -3X Wrestling State Champion and 2011 BJJ US Open Champion 
  • Eli Sanchez - D1 Wrestler, San Jose Open Medium Heavy and Absolute Champion, 2011 BJJ by the Sea Champion, US Open Championships 3rd place
  • Seo Perales - 2X US Open Champion, 3rd and 5th place in the World Championships, BJJ Blackbelt 
  • Mario Rios - Brazilian Jiu-Jitsu  Blackbelt 
  • Rudy Sanchez - Brazilian Jiu-Jitsu Blackbelt 

2011 San Jose Open Brazilian Jiu-Jitsu Team Champions

  The Smash Gyms Brazilian Jiu-jitsu program incorporates the most effective techniques of BJJ, judo, and wrestling.


Kids Martial ArtsKids Martial Arts

The Smash Gyms Kids Martial Arts Program can and WILL help your child increase their confidence, self-esteem, discipline, while teaching them life skills that will last them a lifetime! In our program you child will be able to progress at their very own pace. We understand that everyone learns differently. Whether your child can only train once a week or everyday we have the program that will fit your needs.

With a strong focus on coordination and overall fitness our kids curriculum includes a systematic blend of Jiu-jitsu, Wrestling, and Judo into a complete grappling system. Our kids class curriculum was designed by Brazilian Jiu-Jitsu black belts, Judo black belts, College Wrestlers, and self-defense experts. Our system is designed as a path for the average child to progress safely and quickly. The system has proven to be highly effective in both self-defense and Brazilian Jiu-jitsu sport competition. You will find our unique classes are presented in a format highly conducive to learning while maintaining a strong focus on safety.

Kickboxing kickboxing

Are you looking for a fun workout that will increase your strength and flexibility while burning fat? Then our cardio-kickboxing is for you! It is an exiting cardiovascular workout that blends elements of boxing, martial arts and traditional aerobics into a 60-minute exercise routine. Punch away your stress! Safely hit and kick pads, mitts and shields with a partner and under the supervision of a professional trainer!

Smash Gyms Cardio kickboxing is a combination of aerobics, boxing, and martial arts. Learn proper technique for punches, kicks, knees and elbows while burning a ton of calories!

This intense, total-body workout can improve strength, aerobic fitness, flexibility, coordination, and balance. The American Council on Exercise (ACE), which evaluates exercise products and programs, notes that, during a one-hour kickboxing workout, you can burn from 500 to 800 calories, which is up to twice the calories you burn during a one-hour step-aerobics class.

Kickboxing classes can be a great alternative for people who have become bored with weight-room cardiovascular activities, such as brisk walking or jogging on a treadmill. They also provide an option for people who enjoy the "semi-dance" movements found in aerobics or step classes. Our kickboxing classes are great for both the beginner and advanced students. A beginning cardio kickboxer will have start to develop endurance, strength, and flexibility. ACE advises exercisers to keep the following things in mind when participating in this aerobic activity.



World Class Instruction from Kettlebell Coach Denis Kanygin! This Russian Fitness secret is an amazing exercise alternative for WOMEN AND MEN! Whether you are just looking for a way to get in shape or you're a competitive athlete we can tailor individual kettlebell workout routines for ANYONE!

Our Kettlebell classes will teach you safe and fun Kettlebell exercises and techniques. We'll help you lose weight, build functional strength, and increase your stamina!

Kettlebells are extremely versatile. They can help anyone reach their fitness goals! They help people lose weight, build muscle, enhance sport performance or maintain fitness level, as well as improve quality of life as you age. Kettlebells provide results. Whether you want to lose inches and tone up or gain muscle and strength we can show you how to use kettlebells to reach those goals!

Kettlebells can help you improve your fitness level to help heal pains and aches and restore muscle balance in the body. Kettlebell training is also a great prevention tool that will preserve the balance, strength and functionality. Kettlebells provide intense fat burning workouts that will help you develop strong bones and joints. With Kettlebell training you can have strength without the bulk! These workouts will give you endurance and stamina of marathon runners without the running.



Krav Maga is the official self-defense system of the Israeli Defense Forces (IDF), Israeli Anti-terrorist Units, and various branches of the Israeli Security Forces. Krav Maga was developed in Israel, under realistic battlefield and street conditions. This comprehensive system of martial arts has recently been adopted by and taught to many law enforcement and military organizations, including the US Air Marshals, F.B.I., C.I.A, D.E.A., U.S. Secret Service, and numerous Police Departments.

Krav Maga's realistic and unique approach to personal safety makes it an ideal self-defense solution for men, women and children regardless of age and fitness level. Because Krav Maga was designed to tap into your natural instincts, it is incredibly easy to learn. Krav-Maga is a horizontal system with a unique and logical approach. It is easy to learn and retain, performed naturally and intuitively, and practically be use under stressful conditions. No previous training is necessary and anyone can learn this deadly art! Krav Maga is a simple and highly effective system that focuses on simple and practical techniques designed to keep you safe in any self-defense situation.

The Smash Gyms Krav Maga Program will help you gain confidence through the techniques taught designed to help you protect yourself and your loved ones. Our instructors will teach you techniques that will make you confident in virtually any self-defense situation. Not only will you learn proper defense against attacks but you will learn how to eliminate attackers quickly and effectively. Attacks with punches, kicks, chokes, guns, knives, and sticks will be re-created in a fun and safe manner to get you ready for anything. You'll learn to function during the stress and shock of a sudden, violent encounter.

Krav Maga incorporates fitness, self-defense and fighting like no other system. Krav Maga's self-defense classes are a total-body workout that combines kicking, punching, stand up fighting, ground fighting, and defenses against weapons, getting students into prime physical shape, toning muscle and dramatically improving strength and stamina. The total-body workout benefits of the Krav Maga self-defense and fitness system have been featured in publications such as Shape, Men's Fitness, USA Today, US, and SELF, as well as television from CNN and Extra to The Today Show





  Contact US
Email: contact@smashgyms.com

1239 Reamwood Drive | Sunnyvale, CA 94089
Border of Sunnyvale and Santa Clara | Cross Streets: Tasman & Lawrence

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"This review is for the Kids Martial Arts and Smash and Bash Bootcamp held at Smash Gyms. I was referred to Smash Gyms by a family member who trains in the Brazilian Jiu Jitsu class at Smash Gyms. The atmosphere in the gym is very welcoming to all. My son, who is 9 years old, took a liking to the Kids Martial Arts class on the very first day. His confidence, discipline, and knowledge of self defense has rapidly developed since enrolling in this school. He insists that he wants to continue to train daily. The instructors leading the Kids Martial Arts program do an excellent job working with the children. Parents can work out during the kids' class as well. I have taken the Smash and Bash Bootcamp while my son is training. This also is an awesome, challenging, and very convenient class for any parent wanting a great workout while their child is training. The instruction, workouts and gym have been a positive experience. I would recommend that anyone who is interested begin by enrolling in the free week trials offered at Smash Gyms." - Alex R

"Amazing, organized, and fun kids classes. Focuses on kids fitness and technique. Great kettlebell class. The instructor is very experieced and detailed. They also have kickboxing, Krav Maga, jujitsu, Zumba, and bootcamp classes. I can't wait till I can find time to do them all." - M. Kelly

"#1 The BJJ instructor is fantastic (as evidenced by the amount of dedicated students)! Awards! For both instructor and his students. Even if you aren't participating, this is a fun-to-watch class.
#2 The Krav Maga instructor is fantastic! 28+ years experience? You know he knows his craft. Very clear instruction on technique and goals. Non-intimidating style ensures you'll hone your skills, and enjoy doing it!
#3 Large, air-conditioned, clean and organized space that can easily handle the popular group exercise classes while two other martial arts classes run simultaneously.
This is a new location run by some dedicated people.
What do you desire? Martial Arts training? Self Defense training? Boot camp-style training? Weight training (there are Kettle Bell classes)? Increasing your cardio fitness while strengthening and toning your muscles? Smash has got you covered.
Don't take just my word for it, although you won't be disappointed. Go in and try it out. And bring your kids !"
- Jane R.

"Smash Gyms offers an excellent Brazilian Jiu Jitsu program with excellent and knowledgeable instructors. Furthermore, the atmosphere is very welcoming, and we learn not only from the instructors but also from each other, as everyone here is willing to help each other out. Definitely the best place to go!
- Thaibinh

What attracted me to Smash Gyms is the breadth and depth of the Krav Maga and Jiu-Jitsu programs and the stellar reputations of the head instructors, IDF veteran and KM expert Opher Har-El and 3rd degree black belt Michael Jen. Having trained with Opher for nearly 6 years, I can tell you that the Krav Maga program at Smash Gyms faithfully continues the original lineage - based on fundamental and natural instincts, anyone can learn how to defend themselves and at the same time get in phenomenal shape.Opher's instruction is a real as it gets - his classes are intense, challenging, and a ton of fun for newbies through advanced students. The KM classes have a good mix of advanced students, new students and folks just dropping in; and everyone gets the same level of attention. There's no ego or meatheads, so the intimidation factor is very low - just a group of folks looking to improve themselves. You find yourself being pushed in ways that you never knew you could handle. Amazing that at the end of every class, it's impossible to wipe the grin off of your face.As far as Michael Jen's BJJ classes, I've had the chance to join a few weeks of classes, and his reputation and the reviews from the BJJ students hold true - his attention to detail, straight forward technique and his highly evolved "systems" make every class feel like a seminar. As important as the instructor cadre is the student body, and it's obvious that Smash Gyms attracts a high level of expertise from a wide variety of disciplines - there are regular black belt drops in from BJJ and Judo, world class wrestlers and grapplers, available to help you with your game - all for the asking (it's pretty common for folks to stick around and roll for an hour after class) and to take advantage of. Recently a team of 8 of Michael's students placed really, really well (4 golds, 3 silvers) in competition at Jiujistu-by-the-Sea, so that's the ultimate proof in the pudding!The gym is relatively new, and a really nice space - extremely clean; more and more equipment and class variety is added every week; there's even a nicely thought out kids play room off to the side, but it's more likely they will want to join the kids classes ;-)So if you are looking to continue your training at a higher level, start learning to defend yourself, or looking just to jump in for fun and fitness, you'd do really well to come down and take advantage of the fact that we are lucky enough to have such world class instruction and talent in our backyard; ask for Rudy and he'll take great care of you with no pressure, and an unlimited and no obligation free week!" - Jeff B

"This place rocks! The atmosphere is very friendly and casual, not intimidating at all. People (staff and clients) are friendly and helpful. Walk in the door and Rudy will help you out on what you need to get you started.I tried out the circuit training at noon, kickboxing, and zumba. Circuit training is great workout, small class and personal attention. Zumba is only as good as the instructor, and Raquel is energetic and fun. Kickboxing is pads and mitts, not the kick in the air stuff, good workout, and the instructors walk around to make sure people's forms are correct. Though your workout quality do depend on a decent partner.The only complain I have of this place is no shower, other than that, it's perfect. Krav maga is next on my list ." - Viola C.

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