We are grateful for this team and everything they do. This is truly a place we trust. Both my son…read moreand daughter joined the classes, and it has been such a positive experience for our family. My son is autistic, so we decided to start with private lessons. Following instructions can be challenging for my son, but Mr. Castro has shown incredible patience, kindness, and understanding. He truly took the time to build trust with my son, and that has made all the difference. We've seen such meaningful progress -- my son is now able to follow instructions and always tries his very best in every session. We truly appreciate the care and dedication that goes into working with him. My daughter has grown so much since joining as well. She's becoming stronger, more disciplined, and confident. Out of all the activities she's tried, martial arts is the one she loves the most. She stays focused in class and is currently enrolled in kickboxing, but she's always curious about the other martial arts programs they offer. I love seeing both of them grow stronger!

Castro Martial Arts is by far one of the best decisions we made when we were looking for our little…read moreone to channel his energy in sports. With Covid-19 Mr Castro and the team have made valiant effort to keep the kids entertained and he can't wait for his Zoom karate class. Not only is he able to get his weekly activity in but we are able to schedule live 1:1 with teacher Ramon. The specialized hand delivery of the new belt was amazing. Thank you all for everything you do during this hard times.

This place is by far the MOST unethical place I've ever had the disservice of attending. I began…read moretaking jiu jitsu in September religiously, and the morals of the gym have steadily declined ever since. The owner sneakily switched and canceled class times without talking to clients (3 times in 2 weeks), brought in unqualified coaches who are known to have poor reputations around the community, AND failed to tell the jiu jitsu instructor that class times were canceled/changed - leaving both students and parents confused and frustrated on the status of the classes they invest hundreds of dollars to take on a monthly basis. Once I was made privy to these changes, I took the liberty to take my frustrations to the owner's father, Kent, who runs the front desk. I explained that I felt that his business practices were unprofessional and unethical and he proceeded to raise his voice and verbally attack me in front of his paying customers. I highly discourage anyone from even considering attending this place. They run a poor business and don't value their students or the people that work for them.

I can no longer support this place. They have completely changed their entire program and moved…read moreaway from being about martial arts mentality. There is no respect or loyalty with their clients or instructors. Without warning or discussion they eliminated my jiu-jitsu program and eliminated the boxing program. They brought in some shady guy who has burned several other gyms in Stockton, Concord, and San Jose to run a striking program. The martial arts community is small and this Tony guy they now have is not trustworthy. I am now training with Darcio Lira Jiu-jitsu in Livermore and would strongly encourage anyone reading this to not trust this place. You are not respected here as a client and you will not be respected here as an instructor.

Ground Up Muay Thai has Amazing Coaches. Not only do they show commitment, respect and patience,…read morethey teach the proper techniques of the sport to the students. Ground Up shares a true passion of the sport and makes everyone feel welcome. THANK YOU Team.

From the owner: Here at Ground Up Muay Thai, we help everyone stay active, lose weight, meet new friends, build…read morecharacter, learn self-defense, build self confidence, while training in one of our classes. Beginner - Advance Classes MUAY THAI F.I.T (fast, intense, training)

Enrolled my 8 year here about 4 months ago. We came from another studio that was just too cramped…read more Its been a great place to be. Academy offers more that Jui jitsu which is nice to keep training options open and fun. Sensei Jason and his helpers are great and keep students focused on the mat.

My son and daughter have been in the Muay Thai program here since January 2024. My son is now 9 and…read moremy daughter is 6. Since joining Cortez Full Circle, they have learned so much in the art of Muay Thai. Most importantly, they have also learned discipline and listening skills - which is a plus for at home! They look forward to class each week and practice at home regularly, citing their coaches instructions. Coach Eric and Coach Lorenzo are amazing teachers! They are patient with each individual student and consistently push them to their full potential. Every person on staff is professional and courteous. Lillie is always very pleasant and accommodating. We love what Cortez Full Circle has taught our children so far and are excited for them to continue growing here!

I recently became a member at State of Grace Academy with absolutely zero experience in martial…read morearts training. Since joining, I have fell in love with Muay Thai. Whether you have been training for years or starting out fresh like me, everyone learns at the same pace collectively as a team, which I appreciate a lot. The staff, the community, the coaches and the members are all positively supportive and have amazing energy! I felt welcomed on my very first day and always look forward to coming to class every week.

SOGMA has been a really great place for my son to grow in discipline, confidence and of course his…read morephysical abilities. I enrolled him over a year ago when he was just 3 1/2 years old. The first class was free and was an assessment to gauge if he would fit well in a class setting. Fortunately, he was able to follow instructions and we've been going since! He absolutely loves it there! All of the coaches are awesome and will really take the time to teach the littles correct form. It's really a friendly family environment, Coach Cliff and Miss Deb are always so welcoming and their daughter "Sissy" is my son's fav! Fun fact: They call my kiddo "Dinosaur" because when he first started he was so shy and didn't know how to make friends so he'd roar at everyone lol it just basically stuck! Overall I'd definitely recommend SOGMA for anyone wanting to get their kiddos into martial arts, I'm sure they'd love it as well!

We brought our daughter to Valor Main Gym in Stockton today for her first class since we had been…read moregoing to the other Valor gym. We didn't realize the class schedule started earlier here, so unfortunately we missed her class. Even so, Coach Ian was kind enough to let my daughter join in with his daughter's training since we were already there. Coach Ian and the whole team were incredibly friendly, welcoming, and made us feel comfortable right away. Even though it was only a quick 15-minute introduction, my daughter had an absolute blast! Coach Ian made the class fun and engaging, and it was great to see his wife join in the training as well. Thank you, Coach Ian, for being so welcoming and for taking the time to give my daughter such a positive first experience. We truly appreciate it!

All staff are amazing and helpful. If you want to learn Muay Thai, Valor Training Center is the…read moreplace to go!

I have been coming to this gym for over 5 years. an incredible facility with all the amenities you…read moreneed to get into proper shape and reach any goal you set for yourself. The community have become my second family; kind, respectful, supportive. As a fight gym, you level up very quickly, becoming a capable and strong fighter in no-time. Kids class available too!

Been going here about two years now and love the community. Whether your a beginner or advanced…read morelevel the coaches and members are here to help each other grow. I started to get back into shape and through the support of the community I have lost 20 pounds, have completed, and got some victories. I went to other gyms before, but definitely grew the most in skill here. First class is free, so check this community out. Remember, to get more skillful, faster, or stronger, you need 'Resistance'!

Gym is great for the most part. I do muay thai, bag class, and open gym. Some instructors like to…read moreeducate while others stare at their phone most of the class. You'll catch on easy of which instructors genuinely care about your growth. However, in-terms of experience & background - every instructor is absolutely legit. And I do believe it's the best gym around. During open gym hours - gym is closed 60-70% of the time which is incredibly frustrating since some people want to put in that extra work to really get better; plus paying them $180/month so I try to maximize my use of the gym itself. Not sure if it's a staffing issue but I probably have been turned away 50+ times thus far, quite frankly, it sucks. Can't have open gym hours if you're not open. Hopefully they improve at the new facility.

This gym has truly changed my life. By simply showing up consistently, I've lost 101 pounds, and I…read morecouldn't have done it without the support and guidance of the coaches here. From day one, they made me feel welcomed, encouraged, and capable--no matter my fitness level. The coaching is top-notch: they pay attention, help with form, push you when you need it, and support you when you don't think you can keep going. The community is just as amazing. Everyone is supportive, motivating, and genuinely happy to see you succeed. This isn't just a CrossFit gym--it's a place that helps you build confidence, discipline, and a better version of yourself 100%. If you're on the fence, stop thinking and just show up. It worked for me, and it can work for you too