Mark is a truly gifted personal trainer, and I can't thank him enough--not only for helping me…read morebecome stronger, but, more importantly, for the impact he has had on my overall fitness and health. When I first walked into Mark's gym six months ago, I was frustrated. Despite working out consistently three times a week for many years, I still suffered from frequent back and knee pain, and my lower-body strength, core stability, and balance were poor. From our first meeting, Mark listened carefully to my concerns and developed a customized training program around what my body actually needed. Instead of simply pushing me to lift heavier weights, he taught me to first build a strong foundation--core, glutes, hamstrings, quads, balance, and proper movement--before focusing on strength and power. That lesson will benefit me for the rest of my life. Six months later, my back pain is gone, I no longer need knee support when working out, and my lower-body strength and balance have improved tremendously. At the same time, I increased my dumbbell chest press from 45 lbs to 70 lbs and went from barely being able to hold myself on a pull-up bar to performing multiple unassisted underhand pull-ups. Most importantly, I achieved all of this without getting injured. Mark taught me that a great trainer isn't someone who simply pushes you harder or makes you lift heavier weights. A great trainer understands your body, identifies weaknesses, builds strength methodically, and knows when to push and when not to. I couldn't be happier with what Mark and I have accomplished together. His contribution to my fitness and physical well-being has been invaluable. I highly recommend Mark to anyone who wants to build lasting strength, improve their overall fitness, and reduce the risk of injury.

I've been working with Mark Bransky in Pleasanton since March 2025 and couldn't be happier. I just…read morerenewed my subscription because the results speak for themselves. Mark is excellent at explaining both the theory and practice, so you actually understand what you're doing and how to do it properly. The gym is very well equipped, always clean, and has everything you need for serious and focused training. Mark creates a relaxed but professional atmosphere, and he's easy to work with, always adjusting the sessions to fit where you are and what you need to work on. Since starting with him, I've seen solid gains in strength and technique, and I feel much more confident with every workout. If you want a personal trainer who's knowledgeable, approachable, and genuinely committed to helping you improve, Mark is the guy to see.

My son trained here for a little over 8 months, and we had such a great experience. The coaches are…read moreincredibly attentive and intentional with their programming and training. What really stood out was how individualized the programming was- not only tailored to our son's sport, but even specific to his position. We saw a noticeable improvement in his strength and performance. Coach Dave and Coach Brandon were truly invested in his development. I highly recommend this gym for youth athletes who want to improve their performance and take their game to the next level!

I have had a great experience with Golden State Fitness & Performance. They responded to our…read moreevaluation request and got my son on a training plan right away. Dave is very knowledgeable and his assessment was thorough. I highly recommend athletes looking for a tailored program to check this place out.

I've been a member at CrossFit 580 for about 7 months now and have really been enjoying it. I've…read morebeen doing CrossFit for close to 10 years (got hooked when I lived in Hawaii), and after moving to the Tri-Valley area, I had a hard time finding a gym that felt like the right fit. I tried the other CrossFit gyms around Livermore/Pleasanton and honestly became pretty disenchanted with the gym scene out here. I ended up just doing garage workouts for a while, but realized I really missed the community and energy of being in an actual gym environment. I finally decided to check out CF580, and I'm so glad I did because it's easily become my favorite gym in the area. What stands out to me most: - Programming - The workouts are challenging enough that you always leave feeling like you got a solid workout in, but they're also approachable for all fitness levels. - Community - Strong community feel with social events throughout the year, which makes it easy to get to know people outside of class. - Low ego environment - I've been to gyms where the members are not the friendliest, and I think that usually reflects gym ownership/culture. At 580, people are genuinely welcoming. You'll see all fitness levels here, and everyone is supportive and motivating. - Class schedule - Love that they offer Sunday WODs, which not every gym does. The weekday 5am and 6am classes are also great and provide more flexibility. I've also never had issues getting into class or being stuck on a waitlist. - Family friendly - I have two little ones and have brought them with me to class. There's a small weight room in the back where kids can hang out with toys/snacks, and there's even a TV back there to keep them entertained. - Knowledgeable coaches - All the coaches are experienced, friendly, and supportive. My regular coaches are Steve, Brad, and Nicole and they are SUPER! - Great owner - DJ was welcoming and personable from day one. He even comped my first AND second classes so I could really try the gym out before committing. Oh, and he often leaves out fruit every day, which I've never seen another gym do! Such a thoughtful touch. - Military discount - My husband is active duty military, and I really appreciate that they extend the military discount to spouses too. Not all gyms around here offer that, and some don't offer military discounts at all. Overall, I'm really glad I finally found a gym that feels like the right fit. Thanks, DJ and the CF580 team! Appreciate all of you very much!

CrossFit 580 is your complete solution for health, fitness, nutrition, and community. I started…read moretraining here 18 months ago and now in the best shape of my life! The program and coaches are top tier and will meet you wherever you are at in your fitness journey. All workouts can be scaled and accessible for anyone. Movements are carefully broken down to develop proficiency. Members are friendly and welcomed me from day one. I can't say enough about the community and friendships. There's a large selection of classes throughout the day. Weekly classes include CrossFit, HYROX, barbell, beginners class, skills focus, open gym, and mobility. If you're looking to improve your quality of life through a solid training program and make friends along the way, come to CrossFit 580!

The exercise coach is perfect for my strength training. I joined 2 years ago and I believe this is…read morethe best investment for my health and health is wealth. I like the small group class. I do not like exercising so 20 minutes twice a week works out great for me. The equipment tracks your progress and the coaches Gianni and Shelby are attentive and helpful.

Recovering from open heart surgery and getting back into golf. This program has helped me get my…read morestrength, flexibility and stamina to a level where I can swing a golf club again and walk the course with relative ease. The coaches are motivating and fun! Shout out to Gianni, Shelby, Aedan and Tallon to make it happen.

Nicky is one of a kind personal trainer! I normally don't…read morelike personal trainers because I always struggled with my body and working out, but ever since I enrolled in Nicky's group class in February 2024 I have enjoyed working out! She's hands on and modifies exercises especially if you need accommodations like myself! She also is welcome to feedback and really cares about her clients! She's also takes time explaining the purpose of each exercises and flow of group classes! I truly appreciate Nicky's style and approach of coaching and compassion especially for someone like me who struggles with weight loss and consistency. She inspires me to continue, not give up and keep going!

AMAZING!!! Nikki is so knowledgeable, kind, and patient. She took the time to explain everything…read moreand then if we forgot explained it again. She was constantly engaged to make sure we did the exercises correctly and I got the best workout ever! I cannot say enough good things! Worth every penny and I wish there were classes everyday!

I wanted a change of scenery and joined personal trainer, Nick, at his new studio. I appreciate the…read moreprivacy and comfort that the gym provides. My sessions are twice a week, and I'm happy with the workouts. The circuits that Nick prepares for me are tailored to my fitness and health goals. He's easy to work with!

From the owner: 24/7 Private Gym Access!…read more Month to Month membership gets you in the door whenever you want, train on your time! Avoid large crowds and waiting long for machines, with limited memberships available, you can get your workouts done on your schedule with the ability to setup your workout space to hit your goals! Weekly scheduled fitness workshops included as part of the membership to improve form, efficiency and gain different styles. Be one of the limited members and Join today!

Been going here for the past 5 years. Best community and greatest coaches! Very family-oriented…read more Their Nutrition Challenge program at the beginning of every year is also phenomenal. They've helped me bounce back from having two kids!

Amazing place! We are in Livermore for a month and needed a place to workout. We are so glad we…read morecame across this place. The owners and coaches were super friendly. We have attended a few classes already and we love the community and encouragement! If we lived here permanently this would definitely be our place.

Jason nailed it in his 5 star review, so I'm going to sound redundant, but it is important to get a…read morevariety of voices. Linda is laser sharp at analyzing your physical condition and goals, and crafting and implementing compatible exercise plans. She is incredibly professional and well educated, but also seems to have that rare touch - a natural as a professional trainer. She will get you to push much harder than you would on your own, perfect your form during every exercise, and develop core muscles that you never knew you had. (I see now that my prior experiences with "trainers" were absurdly simplistic and cookbook by comparison.) Very highly recommended.

Thank goodness for Linda! If you are looking for an amazing trainer who will effectively whip you…read moreinto shape, whether it be for you to lose fat and/or get strong, your search will end here. Hands down, Linda is THE BEST trainer I have ever worked with in all of Northern California! I've worked with other trainers before, and have even participated at Crossfit, but what makes her different from any other trainer is that 1) She genuinely cares about her clients and their fitness goals, and 2) She makes SURE that you are able to get the best workouts, with the right amount of intensity (and it varies with each person), SAFELY. She knows what she's doing as your trainer, even when you don't. Because of her, I not only reached my fitness goals, I went beyond them. Thank you Linda!!

I finished my 6 week program and I am feeling GREAT! Erica, Amber, Shawna, and Madison have all…read morebeen awesome and so much help! The workouts are challenging and you are sore, however, No Pain No Gain! I've been eating healthier, getting more active, I've also found that my mental state with stress and anxiety are less, and don't have time to sit and watch Netflix or Big Brother as much as I would like to because Now my body just wants to move all the time! The nutrition is also a plus! It helped me feel healthy with out feeling too restricted and never hungry! If you are looking for something that motivates, encourages, and push you to reach your goal. This is the place for you! Please give Erica and her team a chance to help you get there. I've decided to commit to a year with the ladies and I am so excited to see what new changes they will bring to my life, My husband is very happy with the results that I have been able to accomplish this far, and can't wait to see my results as I keep going! Best challenge I have ever been in! Great gym and great ladies!!

It is a great concept and there are great instructors but the owner is horrible and flat-out rude…read more There were many people who were not getting the full benefit because they didn't feel they could talk to her or ask questions. I've seen her be rude about peoples' kids or about accents. My friend and I won the challenge and she was so visibly mad at our weigh-in and walked off because we succeeded. She was not happy for us and it was by no thanks to her that we succeeded. . To top it off she bounced the check she paid my friend with! I recently wished I could revisit there but I know already what she's like. Its unfortunate because everything else about it is good. Maybe if she was behind the scenes but she's very involved so it does make a difference.