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KacyPerformance

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About
Hello! My name is Kacy and I am a personal trainer servicing the Chino Hills and Diamond Bar surrounding area for the last 12 years. Over the past decade I’ve helped clients not only build muscle and/or lose fat, but build them a system for them to thrive and to sustain results even after our training has concluded. That includes a free meal plan as well as workouts. I set you up for life long success with your fitness journey.
Overview

Background checked

1 employee

12 years in business

Business hours

SunClosedMon3:00 pm - 9:00 pm

Payment methods

This pro accepts payments via Apple Pay, Cash, Check, Venmo, and Zelle.

Social media

Instagram

Services offered
Event to prep for

Athletic event or competition

Vacation

Wedding

Fitness goals

Lose weight

Get toned

Build muscle

Gain flexibility

Client age

18 - 22 years old

23 - 30 years old

31 - 40 years old

41 - 50 years old

Projects and media

12 photos

Projects and media

12 photos

Reviews

Customers rated this pro highly for work quality, value, and professionalism.

Exceptional 5.0

13 reviews

5

100%

4

0%

3

0%

2

0%

1

0%

This pro's rating is a combination of reviews posted by customers both on and off of Thumbtack. Thumbtack cannot verify external reviews.

Read reviews that mention:

pro avatar
Mia S.

3 weeks ago

Kacy Performance is the real deal. I've been consistently training with Kacy since September 2024. I started this journey to invest in my health and get in shape for my wedding in September 2025-and it's been one of the best decisions I've made. At first, I was intimidated. I hadn't stepped into a gym since high school, and working out in a space full of fit, confident people made me nervous. I wasn't sure if I'd belong or if I'd be judged, but I booked a consultation anyway. Kacy broke down the program, pricing, and structure-explaining that I'd be training alongside others instead of having one-on-one sessions the whole time. That honestly helped ease my nerves. I liked the idea of being guided but still having some space to grow at my own pace. Kacy's approach is legit. His pricing is more reasonable than big-box gyms like LA Fitness or 24 Hour Fitness, and you get so much more value. Yes, you share the space with other clients, but he makes sure you understand each movement before stepping away. He prioritizes safety and proper form above all else. If you're unsure or lack confidence, he's right there to coach and correct you until you get it right. He keeps the energy high and the sessions focused. He's serious about preventing injury and helping you progress-and if you stay consistent, you will see results. He's not one of those Instagram "trainers" doing it for likes. He truly knows his stuff and backs it up with science and strategy. Also, he's hilarious. His memory? Not the best-you may have to repeat yourself sometimes-but he genuinely cares and puts in the work to help you succeed. When I started, I couldn't even do a barbell squat. I felt awkward, weak, and wanted to quit. But Kacy didn't let me give up. Every week, he had me work at it, and over time, I gained confidence and strength. Today, I'm confidently squatting 125 lbs-and I hit a personal record! That kind of growth doesn't happen overnight, but with consistency and guidance, it does happen. Let's talk progress: When I started, I weighed 196 lbs and had close to 40% body fat. I committed to 12 sessions a month (training 3x per week). Of course, life happens-vacations, holidays, work trips-but Kacy is flexible. He lets you adjust your schedule so you don't lose out on your sessions. Fast forward to today: Weight: 175.5 lbs Muscle Mass: 68.1 lbs Body Fat: 31.6% But more than numbers, I feel different. I feel strong. I feel proud. And with my wedding just two months away, I'm finally feeling confident in my dress. Kacy uses an InBody scanner to track your progress-muscle, fat, water levels-and it's been an amazing accountability tool. Watching those numbers shift is a huge motivator. My biggest advice? Be consistent, trust the process, and hit your protein goals! The results will speak for themselves. I'm stronger, leaner, and healthier than I've been in years--and it's all thanks to Kacy Performance. (And yes-check out my before and current photos, plus my InBody scan results. Proof is in the progress!)
pro avatar
Juley N.

4 weeks ago

I've had the pleasure of working with Kacy as my personal trainer, and I couldn't be happier with the experience. From the start, Kacy has been incredibly dedicated to helping me achieve my fitness goals. He holds me accountable, which has been crucial for my progress. His consistent check-ins and motivational support keep me on track and committed. One of the standout aspects of Kacy's training is his attention to detail when it comes to nutrition. He helps me meticulously track my meals, offering valuable insights and adjustments to optimize my diet. This personalized approach has made a significant difference in my results. Speaking of results, l've seen tremendous progress within just a week of working with Kacy. His effective training routines, combined with his nutritional guidance, have accelerated my fitness journey far beyond my expectations. I highly recommend Kacy to anyone looking for a dedicated, knowledgeable, and supportive personal trainer. Instagram: @kacy.barlow
pro avatar
Daphne L.

4 weeks ago

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Kacy Barlow

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