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KacyPerformance

5.0 (13 reviews)
Open 8:00 am - 8:00 pm

Services - KacyPerformance

Personal training

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Nique P.

Been training with Kacy for a little over a year now . Couldn't be any happier ! Went in at 155 lbs now at 127 healthy pounds . Honestly changed my life for the better ! He gives a great meal plan to follow which has a lot of options , you can definitely eat you're just eating healthier which is the purpose of trying to be healthier in general . Trains well , definitely knows what he's doing . I'm able to do so many things I didn't think I could do. He makes sure you don't give up , but he also knows your limits . The fact that I can do pull ups and push ups still amaze me till this day . Im definitely stronger and healthier than I was when I first started .He pays attention to what your goal is and makes sure you reach it ! I definitely recommend Kacy to anyone if you're looking for a good trainer and actual results !

After
Sepideh V.

I have tried so many trainers in the past and never saw any results until I met Kacy. He teaches you technique the correct diet and he makes sure you stay motivated. I use to only be able to squat with the bar and now I am squatting 185 which is crazy I never thought I could accomplish that much weight! I use to be 123 and now I am 137. He knows his stuff if you are looking for a trainer he's the one you are looking for.

First photo 122lbs, second photo 145lbs (and feeling AMAZING!)
Elena L.

Kacy has been the most amazing trainer! He's helped me so much in working towards my goals. The progress I have made with him is something I never would have been able to do without him! He is very knowledgeable and kind. His workouts are intense and very effective. I would highly recommend him as a trainer!

Lost 25lbs

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5 years ago

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Review Highlights - KacyPerformance

I've also never been able to sustain a manageable diet, but Kacy made the plan easy to follow and stick to.

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Curl Fitness Diamond Bar - My favorite section !!!

Curl Fitness Diamond Bar

(57 reviews)

Amazing gym! Been coming here for over a year now and got…read moremy buddy to also sign up after training him for a while. Gus and his team are very attentive, but also fun and energetic at the same time. Whether it's Liz or Ricardo at the front desk helping you, everyone seems to care! And that goes along with the trainers too! Vibes are immaculate, always clean gym, always a great workout, lots of variety. Lots of amenities from classes to massage rooms! Please bring the sauna soon!

Curl Fitness was originally a Crunch Fitness, which is why you'll still see some of the old Crunch…read moretrainers working there. ​The Pros: The biggest advantage of this gym is the variety of classes, like dance. Their equipment is also top-notch, especially the free weights--they use some of the best brands in the industry. Because of the high-end equipment, you'll notice that the membership fees are on the higher side. ​The Cons (Hygiene & Maintenance): Despite the nice gear, the facility is extremely dirty and feels like it's never been cleaned. The handles on the treadmills and ellipticals are often sticky, and there is a thick layer of dust underneath the machines. It's gross! If you've ever been to the Planet Fitness in Diamond Bar, you'll realize just how dirty Curl actually is. ​The most shocking thing I've witnessed is the cleaning process. The cleaning lady uses the same brush to scrub the inside of the toilet bowl and then the toilet seat. Seeing her scrub the bowl and then immediately wipe the seat with the same tool is horrifying! To be clear, she works very hard and I'm not blaming her personally--management simply hasn't provided her with the proper tools or training. Additionally, there is a light in the shower area that has been out forever and never gets repaired. ​Atmosphere & Service: Another bizarre thing is that they don't turn on the AC during the winter. It gets incredibly hot inside. Perhaps that's better for the elderly members, but it's uncomfortable for a real workout. Furthermore, the front desk staff is completely indifferent; when you walk in, they treat you like you're invisible. ​Bottom Line: I only kept this membership because my child has an enrichment class nearby, and it's a convenient place to wait. If my kid weren't taking classes in this area, I definitely wouldn't keep this membership.

Aspire Fitness Walnut - Our trainer Christy doing what she does best! Attentive, caring, and, most of all, supportive towards any fitness goal.

Aspire Fitness Walnut

(178 reviews)

Really great, friendly trainers who provide guidance. Phillip is awesome and taught me so much in…read morea short amount of time.

Phil and Johann are truly exceptional trainers who have transformed my health and lifestyle in ways…read moreI never thought possible. Living with type 1 diabetes for over 25 years means managing blood sugars around the clock--there are no days off. On top of that, working remotely left me stuck in a mostly sedentary lifestyle. I tried countless diets and fad HIIT classes, but nothing ever stuck. That all changed when I started training with Phil and Johann. With their guidance, I not only got my nutrition under control, but I also lost over 25 pounds in just 7 months. Even more importantly, I reduced my daily insulin intake by 50% and lowered my A1C levels--results that both my doctor and I are thrilled about. Beyond the numbers, I feel sharper, more confident, and happier. The brain fog is gone, my mental health is stronger, and (who would've thought?) I even became a gym girlie along the way. Phil and Johann bring a thoughtful, personalized approach to every workout and check-in. Phil makes sure my nutrition aligns perfectly with my goals, while Johann keeps training challenging but sustainable. They're both incredibly dedicated, attentive, and genuinely invested in my success. Their program works because it's tailored to you, sustainable for the long term, and backed by real support every step of the way. If you're serious about making a lasting change and want a team that goes above and beyond, I can't recommend Aspire Fitness enough. Thanks guys!!

JP Fitness - Sculpt the strong, confident body you deserve! Start now and reach your fitness goals!

JP Fitness

(20 reviews)

Well, this review is about 4 years late but some things are better late than ever, right?…read more I first reached out to JP in 2016. At the time, I was going to the gym, following random workouts on social media, and eating to my hearts content. I had very little knowledge regarding training, body composition, and nutrition. After a few months of working with JP, I started to not only gain momentum with my training but also began to see drastic changes to my body. I was so convinced and confident of my progress that I decided to take it to the next level, and compete in NPC as a figure competitor. In April of 2017, I competed in my first NPC show and placed 1st in women's figure. JP's guidance helped me overcome some of my deepest insecurities. In addition to all the things a personal trainer is expected to teach you, weight training, cardio regimen, and nutrition. JP also indirectly helped me with my confidence, mental clarity, advanced methods to training and nutrition, how my body responds to different types of foods, and the list goes on. These photos speak for themselves. The success and results I achieved with the guidance of JP are beyond exceptional. Although these achievements are great, what I cherish the most is the knowledge I gained from working with JP. It is now 4 years later, and still sometimes I can hear his voice in my head during my own training sessions LOL. Thank you, JP. I am forever grateful.

So...how should I start this? It all started with a group picture I had with my friends. It was a…read morehappy day until I saw the photo that I occupied a lot of space on there. I asked myself, "Self, is that what I want to be?" I decided to find a personal trainer, and I found JP. JP is very different than many other trainers that I talked to who try to say many good things about training and attempt to get you in. The first thing I was told is "It is going to be tough, and it is all about you. Are you sure you want to do this?" I knew I was at the right place the moment I heard this because JP does not sugarcoat the challenges that I will face to get my business but serious about training me and helping me to reach my goal. The journey is challenging but fun. JP is dedicated and knowledgeable. He always tries to push you to a limit while paying great attention to the form and your reaction to make sure you do not get hurt. Trough out the time that I train with him, my body does fill sore but not pain. He also designs the session to train different muscle groups in a different way and different date so the muscles have enough time to recover. Besides training knowledge, he is also a very positive person who always shows his passion for helping others to be better. To me, JP is more than just a trainer but friend. I am glad that I met him and will keep up my journey with him.

F45 Training Diamond Bar

F45 Training Diamond Bar

(55 reviews)

I've really fallen in love with this style of training. It's nice compared to going to a gym for me…read morebecause I don't have to think. I don't have to worry about whether the squat rack is open or if the machine i want is taken. I don't have to think about what body parts to target. I just have to show up, do the exercises with everyone else and just focus on getting better at them. Everyone here is really nice and supportive especially the instructors Sherry and Vicky, and you'll definitely get stronger if you keep going. I typically go once or twice a week, it's all the exercise I realistically get nowadays and yet I've actually gotten noticeably better cardio and strength. If you're on the fence about it I'd say give it a try. The classes are honestly hard but you can take it at your own pace, and it only gets easier. One thing I love is that there's a sense of teamwork even if you're doing your own workouts. It makes me work harder seeing other people try hard. Overall definitely worth it

After years of ignoring my husband's attempts to get me to exercise, a friend finally forcibly…read moredragged me to a gym. I tried a variety of small Gyms and studios before discovering F45. The first thing I noticed was how friendly both the staff and other exercisers were. The next thing I noticed was that the music was super fun (think 90s-early 2000s hits). Finally, I realized F45 was the best for me because there's so much variety and constant movement, I don't have a chance to get bored! I only have one day per week I can consistently commit to exercise, and the program/equipment is different each time. Shout out to Vickey and Berry, who are very encouraging and energetic. Thank you for motivating me and helping me feel stronger.

Kim's Power Fitness - Kim - A trainer that cares about her clients!

Kim's Power Fitness

(12 reviews)

This studio is in a shopping center near H-Mart, but not in the same plaza as H-Mart. Parking is a…read morebit hard, the lot is kind of tight and you're competing with the patients going to the doctor next door. The owner Kim is so friendly. I liked the exercises she does, it's different than the other places I've been to. When I went, she had us use a step, so we were doing step aerobics type of exercises which I haven't done in about 10 years, but we had a full body workout by the end of the session. The studio can probably accommodate about 10 - 12 clients per class. I like that she is constantly keeping an eye on all of us to correct our form while we are exercising. In addition to the power workouts, she also does nutrition and offers Pilates, yoga, and Zumba classes so you can take care of yourself mind, body, and spirit!

Following up with my previous review, Coach Kim continues to be the most talented and creative…read moretrainer I've ever seen. She knows how to make every class fun, engaging, and full of sweat while ensuring workouts are effective and personalized for every client. Her training programs are designed to push you to your limits while still being safe and enjoyable. She pays close attention to form, helping clients avoid injuries and maximize results. Beyond fitness, she's also a certified life coach who genuinely cares about her clients' overall well-being, making her sessions both physically and mentally rewarding. On top of that, her gym is always well-maintained, organized, and equipped for the best workout experience. If you're looking for a trainer who will challenge and inspire you while making fitness enjoyable, I highly recommend Kim Power Fitness!

Iron District - IFBB Pro and Trainer Ricky Urrutia

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Had some great training sessions at SMTF with Isaiah! Isaiah's a friendly and knowledgeable trainer…read morewho genuinely cares about his clients' health. I've always been a little intimidated by lifting, but the way he answers questions without any judgment makes me feel comfortable, and even excited about fitness! He takes the time to explain why we're doing certain exercises and even excitedly offers simple food swaps to support my goals without compromising on my cravings. If you're looking for a motivational trainer who truly cares, Isaiah's the one!

First, this is a great facility. It is always clean, well-maintained, well-ventilated, and has…read moreeverything you need to get a good workout. But this is not a gym; it is a training facility where you work with trainers to tackle your physical goals. Next, this is about my trainer, Kevin Abandy. Kevin has been my trainer for exactly 8 weeks now and he is awesome! I made the decision to get a trainer after my birthday to truly invest in myself. You can invest in your own skills and education, but the return is almost always indirect. But with a trainer, specifically Kevin, I gained 8 lbs of muscle mass and lost 8% body fat (approx. 13-lbs of fat) after 8 weeks of training with him. Also, at the start of my training, I had back pain (from past injury to T12) and knee pains (from under the kneecap). Through Kevin's program and coaching, my pain has been reduced to near 0 with full mobility -- like squatting all the way down and up with 200-lbs of weight on my shoulders with no knee pain. I would give a 1-star review to keep it from getting crowded, but it would be hard for me to not tell others about the good that comes out of this place. My mom is 70 and she's training with Kevin too! And the story is the same for her... knee pains - GONE. Back pains - GONE. If you're reading this and decide to get a consultation with Kevin, please let him know you saw Alex's review so he knows his method is making an impact.

KacyPerformance - healthtrainers - Updated May 2026

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