Power Of One Martial Arts
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Power Of One Martial Arts
Select a Program* Mini Ninjas (Ages 4 - 6) Kids Martial Arts (Ages 7 - 12) Teens Martial Arts (Ages 13+) Adult Martial Arts Fitness Kickboxing. Standard rates may apply. You can reply HELP at anytime or learn more. You may opt-out anytime by replying STOP. My son Josh has been working out at Power of One for approximately 3 years and has improved in his Physical abilities incredibly.

He has won multiple tournament Championships in Point Sparring due to his instructors going above and beyond to support him. His instructors provide a perfect learning environment and are very skilled at bringing out the best of my son. The variety of training is exceptional and I highly recommend this program.
Reviews (23)
Raymond Geroso
Raymond Geroso
Oct 05, 2021
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Sensei Jeremey and his wife, Miss J, are truly wonderful instructors. I have seen my daughter develop confidence and leadership abilities. The Jr. instructors also are very professional, caring, and provide wonderful insights to the art. I have enjoyed watching other children grow here and have created strong bonds with the other parents whose children are taught within this excellent school. I look forward to many, many more years watching my daughter grow and work toward her goal of achieving a Black Belt. I have no doubt it will be at PO1 with Sensei Jeremey and Miss J.
A Proud Dad
Dawna K.
Dawna K.
Oct 01, 2021
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If you are looking to build your child's confidence and knowledge of how to protect themselves then this is the right place for you. For the past 2 years I have watched my daughters confidence grow as well as her leadership skills. Sensei Jeremy and Miss J are very patient and help build the child up not only physically but emotionally too! Thank you Power of One - Upland for making us feel like we have a second home at your Dojo.
Monica Mancinas
Monica Mancinas
Sep 24, 2021
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Positive: Quality
My sons first martial arts experience and he loves their program. He learned so much.
Jessica Rodriguez
Jessica Rodriguez
Sep 13, 2021
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Positive: Professionalism, Quality
Our son loves going to Karate class at the Power of One Dojo. Sensei Jeremy is a great teacher. The staff is also very nice and helpful.
Breeann E.
Breeann E.
Jun 12, 2021
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Can't say enough about this place. Mrs .J and Sensei Jeremy are amazing. My oldest daughter has come out of her shell.. they have helped her feel more confident. My middle daughter has ADHD and this has helped her to focus and keep her want to continue her training. And my youngest daughter loves coming to meet new friends and learning to be a ninja! I would recommend this place to anyone...
Christopher Perez
Christopher Perez
May 24, 2021
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Positive: Communication, Professionalism, Quality, Value
This dojo has an amazing staff, they bring so much energy to the kids and my daughter thoroughly enjoys her classes.
Raymond G.
Raymond G.
May 13, 2021
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My daughter has been learning from here for over two years. Mr. & Mrs. J have a wonderful, positive, and supportive learning environment. I have not regretted enrolling my daughter here and look forward to her progression in martial arts at PO1.
Elizabeth Martin
Elizabeth Martin
Sep 23, 2020
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I cannot be happier with Power Of One. They have done so much for our son. He has improved behavior at home and school. And they have so much patience with him as he has a speech delay. Especially now with the pandemic, they have accommodated for my sons sessions and now have our door classes my son missed so much. They are super clean and very aware of the guidelines and follow them thoroughly and accurately. They truly care for all of us as a family and i would and have recommended them! Come join the family!!!
Christian Giles
Christian Giles
Jul 19, 2020
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They are very professional. All I have met are very courteous as well as, simply put, a pleasure to do business with. Two of my sons attend classes with Power of one. Shortly after their enrollment, I did start attending classes myself. I am very pleased with the classes we all have received thus far. I decided to ask my Husband to join with me for his first class last week as well. I am happy to say that, in my opinion, this is a great place for children, teens and adults to all attend classes with instructors that can implement fun and professionalism into their lessons. So, to those thinking
Kathi Rollman
Kathi Rollman
Jun 05, 2020
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My son has been going here for a year and a half. He loves the instructors there and the friends he has made. The owners are very knowledgeable about how to work with different types of kids and how to motivate them to want to do their best. They are very positive and go above and beyond to make the lessons and activities engaging for the kids. My son has become more confident and independent since starting here. He is learning how to take discipline and constructive criticism to make himself a better person. In addition, the owners are very invested in the community and give back in a variety
Aisha Swanier-Davis
Aisha Swanier-Davis
Jun 01, 2020
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Love Power of One! My son has been attending for over a year and he loves it! Sensei and Ms J are so great will the kids! They are caring but firm and have helped my son gain discipline, value hard work, and maintain a great attitude in everything he puts his mind to!
Dawna Salisbury
Dawna Salisbury
May 24, 2020
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My daughter has excelled in confidence, determination and physical ability in the past eight months she’s been a part of this dojo. She looks forward to each class even when we went to virtual classes during the pandemic. She has never been one who was interested in sports until she found Karate. Thank you Jeremy and Jessica for giving her grace when needed yet push her to be her best! You always know how to keep her in a positive mindset and keep her motivated. Thank you!!!
Sofia A.
Sofia A.
Oct 09, 2019
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We have been bringing our five year old daughter here for a few months now and we love the Senseis! They are very friendly and respectful to all parents and children. They are highly knowledgeable and train the kids well. You will not be disappointed. It's an investment for your child. They even offer training for adults. The positive atmosphere is present every time you walk in. Kids are always engaged and Sensei lessons are motivating. Age appropriate for all ages!
Vito G.
Vito G.
Jun 17, 2019
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Both my boys (6 & 9) come to this dojo...they really like it here...the staff teaches karate, but at the same time they make it fun...my boys always look forward to returning to class...GREAT JOB!
Reyna M.
Reyna M.
Mar 21, 2019
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As a mother of a child with some developmental delays I was a little scared of enrolling him in karate. The instructors were very understanding and informative of what they believed the right approach to be. They suggested I start him in private lessons and based on his progress would later integrate him into a group class. He is now in the mighty ninjas class and he's shows amazing progress. His focus has increased dramatically and he has gained confidence in his abilities. I'm so appreciative of the patience they've had with him and for believing in him regardless of his delays
Cynthia Q.
Cynthia Q.
Feb 19, 2019
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I've always been hesitant to take kickboxing because I'm a shy person and didn't think I'd ever be any good but after coming here Jessica and jeremy have been extremely supportive and encouraging to everyone there. Everyone in the class have also been super nice, it's become like a big family where everyone is positive and welcoming to any new members. I recommend this to anyone interested in kickboxing or learning martial arts especially for kids
Kelly R.
Kelly R.
Jan 29, 2019
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Sensei Jeremy and Mrs J are great teachers they are so passionate with our kids and really take time to understand each child's needs. They give such great encouragement. We are so pleased that we joined the POWER OF ONE family our child loves it here.. and were here to stay
Steve P.
Steve P.
Jan 15, 2017
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This is a great studio. Everybody is so engaged in their training and Jeremy and his wife are really devoted and enthusiastic and very skilled. It's like a big family there. Bring your kids to the studio and give it a try, you won't regret it.
Czarina H.
Czarina H.
Sep 28, 2015
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This place is awesome! Not only are the senseis great at what they do, but you can also tell that they have passion and desire to help their clients and family! Thank you so much and we are honored to be a part of this family!
Stephanie A.
Stephanie A.
May 12, 2015
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We love California Black Belt Academy. My 6 year old son started a couple of months ago and he loves going. Classes are small too so the kids get more individual attention. I am very happy we found this school. I highly recommend it.
Nadia A.
Nadia A.
Aug 07, 2014
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My two kids 5 and 7 years old love to go CBA , Sensei Jeremy is very patient with kids and Sensei Jessica is very experienced and strict, both are professional, very friendly, and knowledgeable, they motivate their students to do better at school and at home, they do an extra -curriculum family oriented activities such hiking or parents night out, great environment, karate is great recreation for kids after school also they have adult classes like zumba and self defense. Prices and hours are reasonable they have great specials too.
As a parent I've been noticed a great improvement in my
Bryan C.
Bryan C.
Mar 17, 2014
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If you're looking to get your black belt in a couple years this is not the place. There are many other places that can meet those needs. BUT if you are looking for passionate instructors & a place to grow in the martial arts this is definitely the place for you. The Senseis have a wealth of knowledge & love for the martial arts and are great with kids & adults!!!
Yanina W.
Yanina W.
Feb 18, 2014
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Malia has been attending this Dojo for over 2 years now. We love the family vibe & the patience that is given to each child that participates. This is my daughters passion and Thanks to Sensei's Jessica & Jeremy ..they have helped her really come out of her shell. She is learning wonderful things ... life experiences that will truly be with her forever. We highly recommend this Dojo ... it's not just a Dojo.. it's a second home.