This is my first non-yoga gym experience in YEARS. I actually just intended to introduce my aunt so that she would join as she was looking for a way to keep active. The reviews were awesome and I felt based on said reviews, Kei would give my aunt the attention she needed. After just one session she was sold! And apparently so was I haha. I have really enjoyed my group training sessions with Kei. He's super attentive, really knowledgeable and you'll work out with a wonderful group of people. The workouts are short, but impactful. Seeing the changes in my body already and its only been a few weeks. If you're looking for a welcoming and non-intimidating environment to build strength and get healthy, Dynamic Grit is your place! I love it. read more

Kei is the homie. A little history: 36 years old, female, used to work in the kitchen for a while, jacked up my body - herniated discs, costochondritis (arthritis in the ribs, yes that's a thing, look it up), sprained right ankle that never healed, surgery in my left hand which resulted in my right hand compensating.. yada yada, the list goes on. And then for about a year I just ate a bunch of junk, sat on my ass for days and days, never exercised or stretched - I come with baggage, to say the least. I chose this gym for mainly the following reasons: 1) there were old grammas in the pictures - because I totally identify with them 2) Kei studied Kinesiology at USC 3) the pricing is super fair 4) I liked their website, Yelp page, and general online presence. I've been training with Kei for about 3 months now. We had to start super slow but Kei took his time, never rushed me, paid very close attention to my complaints, and always knew how to adjust so that I could continue to strengthen without any further injuries. I've definitely gotten stronger - household duties have gotten considerably easier. I just feel so. much. better. The goal is to get lean and mean, which I'm sure Kei and Mars can take me there but most importantly I needed someone who could help rehabilitate this broken body and Kei delivered. :D And training is fun. That's always a plus. Oh lastly, I did lose an inch here and there! Funny how this is the last thing I thought to mention. read more

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Don't let the size of this gym surprise you. It is a full service gym offering personal training, training classes, stretching and other virtual classes. You will also learn about nutrition and healthy ways to live your life. You will meet a variety of people who are nice and are driven to achieve their fitness goals. Kei and Mars, the owners, are constantly reviewing Dynamic Grit Fitness' strategic plan. They purchase relevant equipment and provide excellent one-on-one training to their clients. It is very apparent that they care for their clients by pushing them to achieve their personal exercise goals. Be sure to check out Dynamic Grit Fitness! read more

Kei and Mars will push you harder than you ever thought you could go. And you'll do it much to your own amazement! Two years ago, I had bad checkups and Drs said that I was heading down a path of heart and blood problems. Today, I am running 5Ks and doing burpies. Never, ever thought i could do that. Heath is back to normal and check-ups are great. Kei and Mars are real fitness professionals. The are trained in cardiovascular health and will spot you through your transformation. Oh and don't be cheap when it comes to running shoes. Buy custom, expensive shoes. Your feet, Achilles, planters, knees and hips will thank you. Top notch, understanding, sympathetic and downright ruthless trainers. Highly recommended. read more

This is my FIRST yelp review BECAUSE I want to share my experience with my trainer Kei. Kei was my wonderful trainer. I came here for a year and 3 month as my friend was here and recommended. I am a middle-aged female who was hesitant to pay for personal training as it is expensive compared to paying to a regular gym but I gave it a try. I wanted to change my life style completely and desperately needed a professional for support. (I had neck, knee problem.) But you know, I am glad I did. Absolutely one of the best investments in my life! I truly appreciate being trained by Kei. I have many benefits! But I will share some I have gained. 1. Foremost, I am able to have a workout routine 3 days every week while I never be successful in my entire life. (Even daily walking failed, being a member at gym for 10 years but only few times I went to.. Wasted a lot of money) 2. Getting nutrition/life style advice. Kei gives me lots of advice what to eat, when to eat etc. I was told I did not have enough nutrition. I was shocked. I never had protein drinks, bars before I met him. Zero knowledge. So I started taking protein drinks. My hair, skin and nails have become healthier. 3. Kei cares his clients. He always accommodates my conditions. He asked a lot how I have been doing every time I would come and asked me what I liked, disliked etc. Really A LOT. I mean every single time. Also, he gave me lots of tips about business as I am a small business owner. I liked that he did not push me hard when I didn't work out enough, ate chips too much, was depressed about my situations etc... He listens. He knows how to encourage clients. Outcome: My weight has not been changed (I am slim.) but I have gained lots of muscles! And I don't get tired easily. No more pain on my knees!! Yay!! I truly appreciate that my life has been transformed. Seeing at my older family members and friends who struggle about physical problems, eating habits, I am sure this training with Kay would have prevented from my future possible chronical sickness, physical conditions a lot. Oh, also, I had my dad training with Kei online once when I came back to Japan. My dad has dimentia but he did a great job. Kei was super efficient, prepared, giving clear instructions in Japanese. I appreciate it! Again, thank you so much, Kay and Dynamic Grit Fitness!! Now I can do my workout routine by myself with correct forms I learned from Kei. He made me a workout menu for me so that I can continue without him. Such a caring trainer. I want to come back again soon to keep motivated myself! read more

I'm a senior & last January I had major surgery. Because of the exercise routines at Dynamic Grit Fitness for the past 2 years, my recovery was exceptional. Four days after my surgery I was able to walk through Costco pushing a cart. Since receiving clearance from my surgeon, it feels great to be able to resume my workouts at Dynamic Grit Fitness. read more

Mars and Kei are by far the best trainers in town! I have been working out with Mars since March 2013. Started with him at 24 hour fitness and followed him to Dynamic Grit Fitness. Mars helped me overhaul my diet, workouts, lifestyle, everything! What a journey it's been! I moved up to NorCal a little over a year ago and continue to workout with Mars at least twice a week over Zoom. We keep taking it to the next level with each passing month/year. I would highly recommend Dynamic Grit Fitness for anyone ready to get in shape and transform their life. Thank you Mars and Kei for showing us the way!! read more

I've been training with Mars for almost 8 months now, and believe he is one of the most experienced & committed trainers in the South Bay. I started training three times a week, really enjoyed the variety & challenge he put into the sessions. He is focused on helping me achieve my goals and makes every session challenging (& somehow fun). My fitness has increased noticeably and I've seen improvements in my ability to complete more sit ups / core exercises, lift progressively heavier weights & generally push myself harder throughout each session. I find I actually look forward to my workouts. Please try it and I promise you won't be disappointed at all. read more

Dynamic Grit fitness is one of my favorite local gyms! Kei, Mars, and Gabe are incredibly kind, funny, and knowledgeable trainers who have fostered a wonderful and supportive gym community of all fitness abilities. They really care about their gym-goers and provide a well-rounded variety of exercises at every class. I always feel I get a good all-body work out at the end of the every class. read more

These guys are great and very knowledgeable, classes are fun with great prices. Gym and equipment are always clean. I recommend them to people who are trying to lose some weight and learn the correct way of working out. read more

I only write reviews for experiences that are completely horrible or outstanding. My experience with Dynamic Grit Fitness has been nothing short of amazing. Kei is such a talented trainer. He's not only knowledgeable, but customizes personal workouts that fit my busy work schedule. I really enjoy how he mixes up the workouts so that I don't plateau. If you're looking to gain muscle, lose weight or just stay healthy, I highly recommend Dynamic Grit. read more

Kei & Mars are the best trainers who really care about their clients. They have created a great gym and are very supportive of everyone's fitness needs. They watch you train, correct you when needed and teach how to workout correctly. I love coming here. They create different programs each day and you never get bored. This is truly a special place to work out where the trainers care, are professional and extremely knowledgeable. read more

Kei and Mars are two of the most dedicated trainers/people I have ever come across. They are 100% focused on their clients' goals, even in a group environment they manage to give you one on one time. These guys are very knowledgeable and come up with fun yet effective exercises. The light air and fun atmosphere is welcoming, however you will work...hard...and sweat...a lot! Additionally, Dynamic Grit Fitness' fees are very affordable, and for what you get...you feel like you are stealing. Long story short, I feel great and am actually motivated to workout. I give full credit to Kei and Mars. You guys rock my world! read more

My experience with Dynamic Grit Fitness has turned from a preparation for a summer vacation to more of a positive lifestyle change. My experience with Mars has guided me to reach my goals and to build new ones. I am 5'8 and WAS 220 lbs. Although, it has been a battle, Mars kept me focused, educated, challenged, and pushed me when I needed confidence. He is a great trainer. It was nice that he could relate to my situation and I put trust that he had the blueprint. I thank him for guiding me as I shed the pounds away. I was 185 lbs. for that summer vacation but I wasn't satisfied. During my journey, I hit some walls in my goal of weight loss. Mars helped get me over those humps and overtime I reached my personal best at 167 lbs. I felt strong, athletic, confident and proud of what I accomplished. Mars instilled a work ethic within me that allows me to maintain my weight and strive to get stronger. I am passionate and have grown a love for fitness. Mars, thank you for sharing your knowledge and support! read more

For 10 years I've had such back pains but ever since I've been coming here my back is 100% pain free! The staff here is so nice and helpful with whatever I need. Everyone here is very friendly and welcoming. 5 stars isn't enough, I'd rate this place 10 stars!!! read more

Mars and Kei are the best fitness trainers in the Southbay. Friendly and fun and gets results!

I wish I could give these guys 100 stars!!! I have never met two people more dedicated to helping others change their lives! Mars and Kei are PHENOMENAL trainers. They know exactly how hard to push you and exactly the right way to motivate you. Not only are they extremely knowledgeable in all things fitness, they truly care about every client they have and they really do help them in all aspects of their fitness journey - physical, mental, and emotional. It amazes me how well these two guys can adapt to each person's individual personality and fitness level- knowing exactly all the right things to say and do to motivate you and help you achieve your fitness goals. They are always cheerful and always listen. They pay attention to every minute detail so that your work-outs are challenging, yet safe (free from injury). I have been bouncing from personal trainer to personal trainer for 7 years, and I can honestly say that I have never worked with a better trainer than these 2! I can guarantee you will not be disappointed if you sign up with these guys!!! Keep up the great work Dynamic Grit Fitness!! read more

If I could give Dynamic Grit more than 5 stars I would. I wanted to help my mom, Anna, be healthier after a slew of health issues and weight gain that she experienced. Even though I'm personally located in Santa Barbara, they were able to communicate with me efficiently through email and phone to set up personal training for my mom. They were super professional and friendly, which my mom can attest to. Kei is very knowledgeable, well-educated(according to my mom, he studies Kinesiology at USC), and a dedicated personal trainer. He worked one-on-one with my mom and showed her how to do various exercises and trained her a few times a week. Following her training session, he would email her outlines of what they had done that session along with YouTube videos for her to review. I'm very happy with Dynamic Grit and couldn't have chosen a better personal trainer for her to work with. They have boosted her confidence immensely, helped her prioritize her health, and taught her a lot about nutrition and fitness. Additionally, my mom no longer gets aches and pains that she used to before prioritizing her health, which is always a plus. She raves about going there and began initiating her own personal training sessions herself; whereas, before she was really reluctant and hesitant, not necessarily making her best efforts to improve her lifestyle. Now, she truly understands the importance of a healthy lifestyle and how to achieve it in a well-rounded and balanced way. Thank you! read more

Awesomeness!!!! A fiend of mine introduced me to Dynamic Grit when I was trying to get back in shape for a competition among friends, and I am glad I listened. Mars is friendly and extremely knowledgeable, I told him about my goals and we planned for success. I love the size of my classes, it's fun to be in a group setting and yet have the personal guidance I needed. I am happy I invested in myself, the price for training is simply worth it. I highly recommend this place, Specially if you want to be #1Thank you!!!! read more

Kei and Mars really know what they're doing! I could not be more happy with my training experience with these guys and am always pleased with how they mix up the workouts in really creative and unorthodox ways. They have tons of knowledge and experience and I feel like I am in great hands!! read more

Ironically, I found this gym while I was picking up pizza. I looked in from the sidewalk, and instead of seeing the typical meatheads that have usually discouraged me from joining a gym, I saw a bunch of regular people doing these unique, innovative exercises that looked fun and challenging. I waited until a class was over to ask some questions, and Mars was more than helpful, friendly, and excited. His enthusiasm is infectious, and for the first time in a while, I became motivated to get back into shape. I've been seeing him for a couple months now, and the investment has paid off not just in how I look, but how I feel. I'm in the best shape I've been in since my 20s, and I feel better than ever. read more

After my ankle surgery I needed to find a way to strengthen my leg and get my cardio on. Trainer Kei seems to understand my body and its limits. Love my new trainers and getting schooled with new workouts I never knew I could do. read more

Kei has given me some great advice (exercises/stretches/drills) to help me work out despite a bad knee. He's very personable and knowledgable. He caters the stretch/workout to make sure the weight is off my knee. But at the same times helps me work on weak areas without causing more damage/wear and tear. They also have Online Coaching...which has been extremely helpful. It's hard to come across genuine trainers. But these guys are it! read more

I came across Dynamic Grit Fitness via a friend's recommendation. A few weeks later, although my body feels the same way it did when I did strength training my first time, I feel great. Being an active individual for my whole life, I was able to stay in good condition through the sheer amount of activity in my life. Now, as life happens, I find that I don't have 5 hours a day to go run around. Kei at Dynamic Grit definitely has a knack for knowing what type of regimen to put you on. By assessing your lifestyle, physical traits, current strength and so on, he can quickly customize an efficient and effective plan to get you in shape. Although it has been only a few weeks, the results are there and if your story sounds like mine, I recommend you give this place a shot. read more

Kei and Mars are dedicated personal trainers who are friendly, encouraging and really know how to motivate you to get to your goal. If you are looking to get fit and get a good work out then I would highly recommend Dynamic Grit Fitness! read more

DGF is a great place to make your personal fitness goals reality. Mars and Kei are trainers who are personable and know how to develop programs to kick your butt that get results. I have done both group sessions and personal training and liked both. read more

If you're looking for an amazing workout in an absolutely amazing environment- definitely give Dynamic Grit Fitness a try. Such a great environment makes, makes you to really push yourself without any fear of judgment. Mars & Kei are far more knowledgeable and supportive compared to any other gym I have ever been in. They'll push you when you need to be pushed, and even take time to help you with whatever you need to work on. Each has given me valuable skills to really be able to progress unlike I had ever been able to before. If you want to see results, you definitely have to check this place out! read more

This place is awesome! Mars and Kei are fantastic trainers with tons of knowledge and will work with you no matter what fitness level you are at. Their group training is great! You'll get a really good workout doing a variety of exercises so you'll never get bored of doing the same things over and over. I also love the group workouts because they provide you with a comforting atmosphere and you feel like you're a part of a team, which makes you want to go even on those days you're exhausted from work. For once in my life I don't hate having to workout and that has been the best part! read more

Want an effective workout program? LOOK NO FURTHER!! Dynamic Grit Fitness is one of the best places for complete, well-rounded training. Mars and Kei are very knowledgeable, experienced, and fun! They constantly challenge you by customizing such a variety of functional movements, conditioning, agility, and resistance training , just to name a few! You can feel how they truly care about their clients by their undivided attention and encouragement. They make working out such a fun experience with their great sense of humor, too! They train all adult ages and ability levels- one on one, or small group. I have been a client for 6 months now , and have really noticed changes in my physique.I love working out with them and look forward to it every day! read more

I LOVE Mars and Kei so much! They are seriously the BEST two individuals that ever graced personal training in the south bay (or the world). Seriously, I HATE working out - and for the first time in my "adult" life I can honestly say I enjoy being in a gym. I miss it when I am gone. I started training with Mars and Kei back in December 2015, and have never felt better. They provide all the tools you need to get on track and succeed. Go here, make friends, get in shape, and feel good doing it - you will not regret it. read more

Dynamic Grit Fitness is head and shoulders above the rest with the integration of dedicated and exceptional personal training, a highly motivational environment with class personified. I'm very glad I made the choice to invest both in myself and in my longevity. There is no better feeling than that of accomplishment and a newfound emphasis on what an individual can make possible when around the right people. read more

I am very grateful to have found DGF and train with Mars and Kei. It's easy to see how passionate these two trainers are and how much they love what they do. Each of them have their own style of training, but are both effective in getting you results. Before coming to this gym I thought personal training was just working out inside the gym. After training with these guys, you really get more than just that. At DGF you get a personalized workout routine designed specifically for your goals. It is not just some workout you can find online and expect to get the same results. Most importantly, they really take the time to get to know you and this shows how much they care about their clients. If you are looking for a fun and challenging workout stop by DGF, you won't regret it! read more

DGF workouts are a great combination of personal training experience and exercising in a small group, which makes it a lot of fun. Mars and Kei create family atmosphere and come up with different types of workouts every single day. There are a lot of classes throughout the day to pick from. Overall this is a great experience, a lot of fun and tangible results. read more

My brother and I have been part of the DGF family for 6 months and we love every second of being there. Mars and Kei are super trainers and push us past our limits every single day we train. They have a fantastic facility and they both have great enthusiasm for fitness. They are very motivating and knowledgeable in their field and are able to improve our skill and strength in our sport. We truly love training under them. read more

I really enjoy coming here for workouts. The trainers are very professional (and knowledgeable) and, most importantly, they make it fun to work out! I also follow them on Instagram to see what their latest workout moves are! No matter what level of fitness you're at, I would highly recommend Dynamic Grit Fitness. read more

DGF has been a godsend! I've had trainers in the past and have gone to classes but none compare to the attention and direction I get from Mars and Kei! They have not only helped and continue to help me in my weight loss process, they've given me a new perspective on physical fitness. I love my workouts and look forward to going no matter how hard the workout can be. I always leave there energized and happy to have gone. It's like hanging out with family and everyone there is truly amazing. I'm learning so much and I love it. They have me for life and everyone I can possibly refer to them. I trust them with all my heart and I'm blessed they are leading my healthy journey to a better place. Guys you Rock!! You truly are the best! read more

Dynamic Grit Fitness has without a doubt been my greatest workout commitment. I'm not a gym person, always pushing myself to go or finding excuses not to go. At Dynamic Grit Fitness, I truly look forward to going. The classes are always different and the variety keeps me interested and far from being bored like I was at a regular gym. The small group dynamic is great, yet I still get the one on one attention like my own personal trainer. Mars and Kei are knowledgable, personable and make working out fun and challenging at the same time!! read more

What sets Kei and Mars apart from other trainers is their unique abundance of knowledge. They are able to modify any exercise to challenge you just enough so you can get the full benefit of a great workout. It doesn't matter if you're new to fitness, or have been a gym rat for years. You will not forget your experience. Truly sincere, kind, and patient trainers. Believe me when I say it's tough to find a trainer with those qualities. Their fitness studio has a very friendly atmosphere too. They keep the space clean and tidy. Which is something a lot of people will come to appreciate in comparison to other gyms. All the clients are having fun even when they're getting their tails whooped! I've enjoyed working with them. These guys are up and coming in Redondo Beach. They seem to have more people inquiring about training by the month! Honestly, if you've been on the fence about training you really should send these guys a message. I promise you won't regret it. read more

At Dynamic Grit Fitness, finally found a workout that is efficient, gets results and keeps me coming back. Challenging workouts in a small group with individualized progression on exercise and weights. Issues with hips and lower back from sitting too much have improved tremendously, along with increased strength, flexibility and energy. read more

Dynamic Grit Fitness was created by Kei Hashimoto and his partner Mars, two incredibly dedicated, knowledgeable and inspiring fitness trainers with a unique vision to equip their clients with the knowledge to live a healthy and balanced lifestyle. They take an individualized approach that informs and challenges their clients every step of the way. As their clients begin to achieve their goals, they know exactly how far to push them forward so that the training regime stays relevant and engaging. The fact that most of their clients have been with them for many years, while introducing their families and children to fitness through Kei and Mars, is the best possible endorsement. They both have impeccable educational backgrounds and a solid record of achievement. I recommend Kei, Mars and Dynamic Grit Fitness without reservation. read more