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Personal trainerAbout the Club
Konjo Training is a private, appointment-only gym located in the quiet Palomares Hills neighborhood of Castro Valley, CA. Designed for focused, one-on-one or small-group training, the space is fully equipped for strength training, Muay Thai, kickboxing, and functional fitness. Unlike commercial gyms, Konjo offers a distraction-free environment in a residential setting, ideal for those locking to push their limits without the crowds. With a coaching philosophy rooted in discipline and mental toughness--reflected in the Japanese word "Konjo" meaning willpower--clients receive personalized, no nonsense guidance tailored to their goals.
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Reviews
Kyle H
★ 5
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Garrett Hamilton
★ 5
Can’t be beat
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David Giannini
★ 5
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Alex Sinclair
★ 5
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Jordan Yelinek
★ 5
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Sandy Kim
★ 5
Great coach!! Super knowledgeable trainer.
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Channing Cheng
★ 5
Highly recommended personal trainer for hitting any fitness goals you may have, especially if you’re looking for fight training. Nothing but friendly and personalized advice.
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Maximilian Breall
★ 5
Before I started training with Damien, I had to pee sitting down. Now, I'm a powerlifting champion. Thank you, Damien. Thank you.
Source: Google
vince U
★ 5
Was going into surgery for a torn acl wanted my legs to be strong before surgery. And overall wanted to as fit as I could be before hand. Damien gave me a program tailor made to my issues and goals. Im thru surgery now and still using alot of the instruction I received. Still making gains. 🦾
Source: Google
Jerry Herrera
★ 5
Damien has a very unique depth of expertise. He's able to seamlessly integrated it in personalized training for my goals. With a combination of functional strength and martial arts, he's found a way to make me really rethink training.
Source: Google
Yariv Robinson
★ 5
This is the real deal! Come ready.
Source: Google
shari shea
★ 5
Amazing instructor!! I have trained under different people throughout the years and Damien is top notch. He is an excellent Motivational instructor and makes it enjoyable to train and reach your goals.
Source: Google
Valeriya Shodorova
★ 5
Training with Damien is awesome! I was kind of nervous about doing kickboxing training, because I’ve never done it before but he made it so fun and easy to learn and he’s really a funny guy! i’ve had other personal trainers before, but the results I’m getting from him are much quicker and I couldn’t be more pleased! I highly recommend Training with him.
Source: Google
David Hemingway
★ 5
I’ve known Damien for 25 years. I’ve owned my own martial arts facility for 30. Being in this industry for so long I can honestly say that Damien is a true martial artist. His attention to detail and expertise in the field is unparallel. I highly recommend training with this man!
Source: Google
Robin R
★ 5
I trained with Damien for 6 months in 2022. Covid lockdowns were rough, I was morbidly obese. I had stopped going to 24 fitness and was uncomfortable going back. Damien walked me through the steps to get me back in shape. He was patient, and his no frills, old school free weight approach suited me perfectly. He gave me the confidence and inspiration to stay on track and stick to the program. I lost 40 lbs in 6 months, and still do a weekly training to get his adjustments to my program.
Source: Google
shravan madireddi
★ 5
I’ve tried several gyms in the past without much success, but Konjo Training has been a total game-changer. After just two months, I’m already seeing noticeable gains in strength, consistency, and confidence. Damien is an incredible coach—calm, knowledgeable, and always focused on proper technique and smart progression. The programming is structured and personalized, and is welcoming and motivating. If you’re looking for serious strength training with real results, I highly recommend Konjo.
Source: Google
Dave G
★ 5
A few years back, I really wanted to rid myself of some extra pounds that I had gained over years of sitting at a desk and programming all day. (Okay more like 50 lbs) Damien caught my interest because he had trained in Muay Thai, however, I only wanted to lose weight which he helped me accomplish as I got down to 155 in record time. He is extremely knowledgeable not only about fighting sports but about training and nutrition as well. Thanks, Damien.
Source: Google
David Garcia
★ 5
Damien is spectacular. I trained with him for several years, and he did an awesome job designing a fitness program that helped me not only reach my goals, but establish a solid baseline for me to build on. He kept track of my progress and was always a lot of fun to work out with. Also, he has a really fun personality and a great sense of humor, so I always looked forward to training w/him. I highly recommend him. Great wholesome guy!
Source: Google
S R
★ 5
Old school, no-nonsense training advice custom tailored to your specific needs. If you follow it and put in the work you will see results.
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Sebastien Bourret
★ 5
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jeff pytel
★ 5
Great place to train! Damien really got me and my friend Brian in tip top shape!!!
Source: Google
Francis Kennedy
★ 5
I'm new to the Muay Thai world and I've been training with Damien for over a year now. He's really taken the time to teach me proper form and technique. As I learn more, my training escalates. I'm extremely confident in what I've learned and I'm very confident Damien's ability to train and motivate.
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Christopher Oryschak
★ 5
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Jill Lin
★ 5
Trainer is incredibly knowledgeable about weight training and nutrition and, even though he has trained some famous people, works with people at all levels. I started out with a basic weightlifting routine and have been with him for years now. Great instructor and offers a variety of different routines and programs depending on your goals. He also offers an option for online training with a diet plan and weekly check ins, which has been great to hold me accountable and on track when I can’t physically make it into the gym. Highly recommend training here.
Source: Google
Ken Nim
★ 5
Great training and professional. Was very patient with me and addressed my deficiencies.
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Nick Hong
★ 5
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Zac Hurst
★ 5
This is without a doubt the best training I’ve ever had in my 20 year athletic career. I’m pushed to my limits in a fun atmosphere. I’d recommend to anyone who is looking for the best training money can buy.
Source: Google
Joseph B
★ 5
Source: Google