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At Polarize CrossFit, we believe performance is built on more than hard workouts. Athletes choose us because we focus on what truly matters—expert coaching, proper mechanics, and virtuosity in movement. Our skilled coaches prioritize safety, progress, and precision, helping you master the basics before adding intensity. Beyond the workout, we support nutrition, recovery, and overall wellness to build the whole athlete. Fitness here is a lifestyle, with guidance to integrate movement, balance, and healthy habits into everyday life. At Polarize CrossFit, you’re not just training—you’re gaining strength, resilience, and lasting results. Because how you train matters.
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Reviews
Jade Patterson
★ 5
Best CrossFit gym in Oceanside (and San Diego). I went consistently to this gym for over a year, and had an entire body and strength transformation. Workouts are hard but efficient. Coach Jo works with athletes to help customize/scale workouts, but still ensures they have the same anaerobic effect💪🏼 Polarize is the best of both worlds: 1) if you’re new to CrossFit (like I was) this is a perfect start or 2) if you’re already a CrossFit junkie, you’ll feel right at home. I couldn’t recommend this gym more! Try out the 5:30am workout crew🔥🔥🔥
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Sarah Newell
★ 5
Polarize is a great gym for all levels of fitness! Whether you like CrossFit, barbell, or are just starting on a fitness journey, there are classes available to meet your needs! We’ve been going to polarize for quite a few years and can’t say enough about the people (especially Jo) involved. Great setup, great people, great workouts!
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Thor Watsjold
★ 5
Been going for about 3 months now, this gym is great! Welcoming members, great staff, Coach Jo is awesome! No judgement, all workouts can be modified to work for you no matter your fitness level, modifications are laid out for everyone so you won’t feel singled out. 10/10
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Ashley Romo
★ 5
Best Gym in Oceanside! Been here a little over a year and I have learned so much about proper techniques and actual knowledge of how to better myself as an athlete. If you want a place where the people (and staff) care about your health and your personal growth, then this is the spot. As an athlete, if you want to choose your new gym home, then you know that when you get here Coach Jo has your back! Be prepared to sweat your butt off. This is the spot to make your goal a reality. 🫶
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Angela Macia
★ 5
Love Polarize CrossFit! The coaches always make sure we are safe with the movements. Everyone is nice and amicable, it feels like a big family.
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Jenna Vinson
★ 5
I love this gym!
This welcoming, non-judgmental community has been like a second family to me for the past 4 years. Coach Jo is kind, passionate and knowledgeable and can teach anyone who is willing to learn. I really like that all workouts are adaptable for any skill level so anyone can come in and get a great, SAFE workout. Over the past 4 years, I have grown and learned so much as a Polarize athlete and am thankful to be apart of this lifestyle of health, fitness and safety.
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Jon Okubo
★ 5
Great gym for athletes of all levels!
The best thing about Polarize is the culture. Everyone is super supportive and the trainers really know their stuff!
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Joanna Mitchell
★ 5
Love this gym! Coach Jo is so knowledgeable and helpful! My daughter and I have had such fun doing her workouts together.
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Jennifer Paino
★ 5
Great workouts daily, strength training equipment along with bikes and rowing machines. The senior group gets an extra workout to boost our metabolism with Coach Jo three days per week.
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Chad Reihbrandt
★ 5
Jo is incredible! If your looking to hit your goals look no further!!
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R M
★ 5
First of all it's a great positive and supportive atmosphere... whether you're coming in or going out of the gym they greet You by name and they really care about how you're feeling or how your workout went. Coach Jo is super knowledgeable and very observant on your form and technique. I visited and seen a lot of CrossFit gyms and this one keeps you wanting to come back because of the positivity and results!
Source: Google
Aaron McNew
★ 5
I was fortunate to drop in to a great gym while visiting in the area.
The staff here is extremely professional, very knowledgeable, and the community was super welcoming.
Don’t hesitate to drop in or look to be becoming a full-time member. They will treat you great!
Thanks again crew!
Source: Google
Joann Civalleri
★ 5
Great place to work out. Friendly staff and plenty of machines. Very clean and tidy.
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Dana Shin
★ 5
Coach Jo has been one of the best CrossFit coaches I have received training from. I have wanted to find a coach and CrossFit box where even the small muscle groups are worked on too and enough warm ups are given before a wod to develop strength, flexibility, and development of a particular muscle group. For example, not a lot of boxes do bench presses, but Jo understands the importance of developing our chest muscles as CrossFit athletes in order to be able to execute movements needed in CrossFit. Nothing goes untouched with the training program taught by Polarize but beyond that, Coach Jo is incredibly supportive both emotionally and spiritually as she truly encourages her athletes to do their best - making the entire workout experience at Polarize FUN, SAFE, ENCOURAGING, and IMPACTFUL. P.S. You can sometimes see the duckies nearby that come to the box to visit and say hi. Whether it is your first time trying CrossFit or a transition from another place, Polarize is the box you want to be at!
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Shuwei Jiang
★ 5
Great and professional coaches here at Polarize Crossfit. My son’s strength and agility improved dramatically in just three months.
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Elana. Small
★ 5
Thank you for introducing me to the MAC classes, whose wonderful instructor leads us through a one-minute workout on each machine followed by a one-minute stretching routine afterwards, for a total of thirty minutes at each session. I always feel welcome and recognized for my efforts to attain wellness, by the instructors and participants alike.
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steven
★ 5
The best place for a workout for upper and lower body. The clients are friendly. The owner is very knowledgeable and can help you no matter what. Take me, for instance, I was born with cerebral palsy, have Parkinson, and a mini stroke. I work out five times a week, their. I push myself every single time. Please mention me by name if you come by. Thanks ♥️
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Jared Larson
★ 5
I joined Polarize CrossFit when I moved here from Oregon in August. I reached out to coach Jo and she was so kind to welcome me to join a class. I went to the class and instantly felt at home. The members were welcoming and I was challenged to be a better athlete. Prior to moving to California, I was nursing an injury (non-CrossFit related) and was working out half the amount of time as I am now. The coaches have been more than willing to help accommodate and strengthen the areas that I was concerned about rejoining a CrossFit gym. Everyone at this gym has gone above and beyond to not only challenge you physically but mentally in the best way possible. I’d highly recommend this gym to anyone.
Source: Google
Bruce Stanley
★ 5
Dropped in coming from AZ. Spoke and met with Jo an instantly felt at home which as crossfitters is a tough thing to come by when it’s not your “home” box. But Jo was very welcoming and had an infectious energy about her! The gym was clean and had everything you’d need to get a proper workout in. If I lived in town this would be my new box! Was hoping to drop in a few more times before heading out but was unable to. But there’s is no doubt that when I’m in town again I’ll be coming back! Thank you, Jo!
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Sandra Vogt
★ 5
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Xochitl Cortez Gonzalez
★ 5
Polarize Crossfit is the real deal. Super friendly and knowledgable coaches. No "stereotypic" egos found in most CrossFit gyms. It is super dog friendly, as long as you have a well behaved pup, as we need to be cautious in not hurting our furry loved ones. This gym is very well equipped, organized and clean. High quality cleaning supplies are always available. My pup and I love Polarize CrossFit!
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Joann Bickley
★ 5
Great place to work out. Jo is awesome!
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Genevieve Weed
★ 5
I love Polarize Crossfit. Coach Jo is awesome. The workouts are really good and the community is great. Everyone is welcome and it's a really fun gym to be a part of.
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Preston Segura
★ 5
Polarize CrossFit is awesome! Not only is each WOD fun and challenging, but the coaching from Jo really helps you get the most from your workouts. I can't recommend this gym enough for those looking to get into working out or continue their journey.
Source: Google
Jared Thomas
★ 5
Polarized CrossFit is super family friendly as well as dog friendly too. This allows my wife and I to take our crazy family of 2 dogs and new born to go and socialize as well as get a good workout in. The equipment is great and clean plus the coaches are highly knowledgeable and fun. Would recommend to anyone of all levels of fitness.
Source: Google
Jesse Bittle
★ 5
The gym where everyone knows your name. I have been a member since 2015 and it is so nice that all the coaches and staff make you feel like part of the family. Everyone is welcome even dogs.
They have many programs to fit the need of any athlete and coaches that can help you achieve any fitness goal. The gym is very clean with well maintained equipment.
Thank You Jo for making me and my family feel like part of yours.
Source: Google
Claudia Tarin-White
★ 5
Love this crossfit gym and highly recommend it! My 3 kids started here a several years back when they were teenagers in the teen program and eventually joined me in the adult classes. Coach Jo and her team have taught my kids and I how to safely and correctly execute all the crossfit movements and how to take care of our bodies and minds.
Source: Google
Barbara Morgan
★ 5
Polarize CrossFit is GREAT! Early opening hours that fit into my schedule and the coaches are awesome and always helpful. The wide variety of workout machines are always clean and in working order. Polorize CrossFit Oceanside is a huge facility which is really nice.
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Kaylie Williams
★ 5
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George Tillis
★ 5
Great atmosphere, great people, incredible coaching. Whatever your fitness goals may be, you can count on Polarize to help you get you there.
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Joeana Garcia
★ 5
I’ve had an awesome experience at this gym, motivating and feels like a family gym! I would definitely recommend !!!
Source: Google
Lesli Root Fitness
★ 5
This CrossFit is one of the best I’ve ever experienced! Jo Boleyn and her coaches truly care about each and every member, striving to meet everyone’s needs no matter what level of their fitness journey they are on. This is a family,
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Ben
★ 5
They opened their doors to support the NoCo Sober group (via the Phoenix App), which is just way awesome! Great workout, great facility, thanks for the coaching!
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Anthony Idol
★ 5
Great community and great coaches! This place brings people together and great for all levels of fitness. Coaches will help you if you are just starting your fitness journey as well as help the more advanced athletes work on their advanced skill movements
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Nancy N
★ 5
I participate in the MAC program which is strength building along with Stretch, cardio or balance. I appreciate the routines Lauri sets up for my class and for the gals that attend each session. Jo offers open gym hours conducive with my schedule. Polarize is the place to go for your workouts.
Source: Google
Eric Angeli
★ 5
Coach Jo and the team are great! Have been going for over 4 yrs and love the gyms energy!
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Sheree Belk
★ 5
Love working out at Polarize, Best coaching and Friendly people.
Always a great workout!
Source: Google
Garlan Botticelli
★ 5
My daughter plays travel softball and needed a local ,quality trainer . Finding Coach Jo @ Polarized fitness has been the best ! She talks to you , understands what you want and need . The gym is always super clean , always friendly and dedicated staff as well ! It’s a must have in your routine !
Source: Google
Jamie Haugh
★ 5
the BEST! Great coaches and community! Plus side, the gym is has a ton of space, natural light and is very CLEAN!
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CAIO CESAR GODINHO DE SANTANA
★ 5
The best!
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Vivian Sandoval
★ 5
Coach Jo and Jesse have been super amazing, supportive, and knowledgeable. I attend the Sweat boot camp and I feel great afterwards. They consider any injuries you may have had to help modify any exercises. I feel welcomed and cared for at this gym ❤️
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Jamila Small
★ 5
The coaches are so welcoming and knowledgeable about what they are doing. Their priority it is always safety. Awesome environment to exercise and meet great people.
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Sandra Slepski
★ 5
Fantastic coaching Excellent workout
Great camaraderie Encouraging to be the best you can be Strengthening whole body to be physically fit. Never felt better.
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Kathy kelley
★ 5
Have belonged to CrossFit for seven years. By exercising it has helped me come through many life situations. It is like an extended family
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Carrie Jaffe
★ 5
I love this place! The coaches are excellent and I can push myself as hard or as easy as I want to- no pressure. The gym is always clean and organized. There are opportunities to socialize, attend workshops to learn more- it's a lot of fun.
Source: Google
Sy Randall
★ 5
I have been a member here for a few months and I can say that the coaching staff and the vibe of this gym is excellent. The workouts are fun and challenging and the environment is very friendly and inviting!
Source: Google
Debbie Crevoiserat
★ 5
I have been attending this establishment for about a year now and I am very satisfied! Jo is great with a lot of helpful and nice people working out here. The price is very reasonable and they are willing to help you with anything. The equipment is great and again they help you learn how to operate ot. Very pleased and hope to have many more years with them!
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sue virgin
★ 5
This place is the best for every fitness level and age! Great for young and old people like me!
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roz arellano
★ 5
I am part of a great group of women who use the Mature Athletes Circuit part of the gym. I super appreciate having this option. Owner, Jo, welcomes everyone with enthusiasm and genuineness. I begin each morning there and love it!
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Dorothy Frank
★ 5
Polarize CrossFit is great. Close to home, the Bikes are just what I needed to complete the workout after doing the Curve machine. Cancelled membership at Planet Fitness.
Source: Google
Frank Sakovitch
★ 5
A great place for exercise n socializing with neighbors
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Liza Molinar
★ 5
I joined in May 2022. I must confess that at the beginning I was scared, I felt intimidated by the idea of going to a gym with CrossFit athletes, especially after more than ten years of a sedentary lifestyle. I highly recommend Polarize CrossFit to anyone looking for a place to change their life. All of the coaches have been exceptional. Especially, Coach Jo, you can tell she loves what she does, she welcomes anyone and adapts to any level of each athlete. She also helps me and keeps helping me with exercises, advice, and my knee pain which almost go away since I came here. I remember I couldn't even bend my knee or use steps, now I am jumping boxes. Polarize CrossFit makes me feel like family. You can make friends and feel welcome while growing your strengths, and abilities, and most importantly I felt like I belonged here from day one.
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Kai Neil
★ 5
This place is amazing, I started my fitness journey here last year and made a huge amount of progress, gaining 20 lbs of muscle and beating my anorexia. The coaches are extremely knowledgeable and helped me grow at a much faster rate than I would have if I started at a public gym. Not to mention, the gym is extremely clean all the time, all athletes are required to wipe down their equipment and mop their portion of the floor. There is also staff that comes in daily to keep up the cleaning. Overall great gym, I would definitely recommend trying it out. (The picture posted is my one year transformation)
Source: Google
Francisco G
★ 5
If could give a rating above 5 stars, I would. I was a member of Polarize CrossFit for about 8 months. Everyone is very welcoming and supportive. Coaches are knowledgeble and patient. Something I really liked is that coaches take their time to show the right posture and teach you how to scale down if necessary to avoid any injuries.
Source: Google
Agnes
★ 5
Jo and the team here at Polarize Crossfit are amazing!! They are genuinely here to see you succeed and what a great environment to be around! Its a hidden gem tucked away in Oceanside. Give them a call today you wont regret it.
Source: Google
Taylor Shelgosh
★ 5
This is by far the best CrossFit gym I have ever been to. I spent just under two years of my life with this gym (only left because my boyfriend and I moved to Utah). A close knit gym is what I believe is the most important quality for a good CrossFit gym to have. It helps push athletes and coaches to stay motivated while continuing to improve. The coaches and athletes treat each other like family here. They push and encourage while knowing each athletes goals and limits. They celebrate small victories as well as large and improvement is what motivates coaches to continue to push and support their athletes. I have tried many new CrossFit gyms out in Utah and I can’t find one that compares to Polarize CrossFit. I miss it so much and I wish I still lived close by.
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Kyle Nevard
★ 5
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Karen Case
★ 5
Dropped in from out of town. Very welcoming environment, a great workout for all ability levels. We’ll be back next time we’re in the area!
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Patrick Prater (Nasty One)
★ 4
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Angela Young
★ 5
Jo is awesome. Stoked we found this place!
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Susan Moynihan
★ 5
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Dan V. Pond
★ 5
Polarize CrossFit is an amazing gym. Probably the best I have ever been a member of and I’ve been a member of many (as I’m in my 50’s). The people here have become like family to me. Everyone made me feel welcome from the first day I walked in. All the nervous jitters of joining a new gym was gone in about 15 minutes on that first day and I have always felt welcome since.
Jo is amazing, as a coach and as a person. She has just the right balance of encouragement and positive reinforcement. She will help you push yourself to your limits but never push you to a place where you shouldn’t go. Her knowledge, skills and techniques are superior. Sometimes I want to say… yeah I’ve got it Jo (lol)… but in the end she has made me much better in my technique, skills and my strength has increased dramatically. My favorite words I always hear from Jo are “Look’en good Team!”
The same goes for Rick and Kevin. They are both amazing trainers as well as great human beings. Many times when Rick is working out with the group, he will intentionally hold himself back. I believe this is his way of not wanting to appear to elevate himself over others. It’s ok Rick… you can go for it; our feeling won’t be hurt. My main purpose for writing this review is simply to encourage others to join our gym to strengthen it with numbers and increase our gym family. My review is totally unsolicited and written completely out of affection for the awesome people running our box and for those that I suffer and thrive with day in and day out. The pandemic has certainly been difficult but our gym will survive and thrive again soon as it is one of the greatest places on earth to spend a few hours a week surrounded by awesome people while we all improve ourselves. Welcome to our family. We look forward to meeting you soon.
Source: Google
Rick Bobst
★ 5
The moment I walked into the front door I felt welcomed. I was out of shape and even though there were some studs in the gym, I never felt intimidated. Been a Polarize CrossFit athlete for almost 3 years now.
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grace burch
★ 5
BEST GYM EVER!!! i love to work out here every week! you should really try it! SO MUCH FUN! they have the coolest girl in the 4-5 teen class! go check it out! and the coaches are awesome!!!
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Ruben Martinez
★ 5
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Brandy Williams
★ 5
I highly recommend Polarize CrossFit to anyone looking for a new box or one to drop in on. All of the coaches have been exceptional. Coach Jo is a true gem in this world. You can tell she loves what she does and she welcomes anyone that walks in the door with a smile and desire to help. They always included my husband and children in events and encouraged them to be a part of the community, member or not. Knowledgeable, friendly and committed to seeing people thrive in whatever their personal abilities may be. I never felt judged or intimidated by staff or other members! Polarize Crossfit makes you feel like family. I made friends, saw myself grow in strength and ability and most importantly I felt like I belonged from day one. Drop in, you will not regret it!!
Source: Google
Eric Jacobs
★ 5
After trying multiple gyms in the area, I picked this one due to its hospitable staff, good hours, cleanliness, equipment upkeep and availability.
I think the gym is a bit of a hidden gem, and its location keeps it hidden from public view. I believe that fact alone makes it so classes are never overburdened with people. This makes it easier to get personal instruction, keep equipment clean and nice, and get to know the coaches and other athletes on a higher level.
For the year and a half or so I have been a member I have attended usually four or five times a week. I usually go in the mornings. Currently due to low numbers in the morning they are considering doing away with it. If they do I will have to go to another gym and that would be upsetting because I feel other gyms are not as personable in the area. Sunday cardio sessions have been done away with for now, but with some more interest it could come back.
Coach Jo is now the owner, and my wife and I have come to know her personally. She has actually helped us with cooked meals when my wife had surgery.
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M M
★ 5
I see the results
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Linzie Wood
★ 5
Great group of people and coaches. Friendly, welcoming, knowledgeable, good value. I've been doing the drop in rate for 2 months, the fundamentals class has been great to start getting back in shape.
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Gina Michelle
★ 5
I'm in Week 3 of the 6-week New You Challenge and am loving it. I feel stronger already and very comfortable there. Yes, I get nervous before the workouts, but once I'm there, I'm relaxed because the coaches are very warm, friendly, enthusiastic, and they take their time explaining what we're doing and WHY we're doing it. I'm very impressed with the interest that the coaches have in their clients. I have a new respect and liking for CrossFit!!
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Brian Palo (SunnyHomeAZ)
★ 1
Lady who runs the place was very rude when she decided she no longer wanted us parking behind the building next door, which she had no authority, nor business worrying about. Because we were authorized by the Mgr of the business we were behind. Since we refused her orders she had a client call a mall police officer to harass us up we left.
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Anthony Duncan
★ 5
Yes
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Eric Jacobs
★ 5
Good workout and lots of options for workout times. Different types of classes. Good atmosphere.
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G. Magaly Navas
★ 5
Great place to exercise
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crystal szemple
★ 5
I have been a PCF member for about a month now and I absolutely love it! Susan, the owner, and all of the coaches welcomed me and my toddler with open arms; it feels like home now. Family environment!
I was intimidated at first, but I love that each class begins with a friendly game-inspired warm up. It is also important to me that the coaches go through the movements with pvc pipe to make sure each athlete has the movements down before doing that actual WOD.
I'm also super stoked to join the intramural open competition--- held in house. The team spirit and camaraderie is so exciting and makes the workouts feel like fun vs work!
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Lety Garcia
★ 5
Great gym, friends, and great coaches this will always be home for crossfit for me! Thanks for pushing me too my limits!
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Leela
★ 5
Polarized Crossfit is a beginner friendly place. At age 66 with a knee injury, they taught me how to squat properly, and adjusted all workouts to what I can do. Somehow with the new way of exercise, my knee is feeling good and I am back to running. People that can lift heavy weights are friendly, not intimidating as I thought I might be, because we are doing the same workout though at different levels.
Polarized Crossfit is a fun place, we have potlucks, contests, fundraisers and projects. Most contests are team oriented, find or pick a partner and each can adjust your level of competition, that means even a beginner can win the contest. We have a resident dog, so get your puppy fix while you are at it.
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Nolan Hudson
★ 5
Great gym, great coaches, great people. It's always clean. The coaches will help you reach your fitness goals safely and intelligently
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Al Thielemann
★ 5
Really enjoy the members of this gym. If you want to experience the "community" that Crossfit talks about, this is the place.
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Monica Cervantes
★ 5
Love the coaches, variety of class times and programming. I've been a member for almost 2 years and it's like a second home.
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Jorge Meza
★ 5
I've been a member of Polarize CrossFit (PCF) for about a year now and I truly enjoy working out there. The staff/coaches are friendly, knowledgeable, push each athlete to do their best, and ensure movements are done in a safe manner. The programming is great. It is challenging yet fun. PCF's hours allow members to workout in the mornings or evenings. The facility is always clean and ample enough to accommodate a full class.
If you're an experienced CrossFitter you need to check this place out and if you're looking to give CrossFit a try this is most definitely the place you want to start at.
Source: Google
Luce Sahali
★ 5
Great community, relaxed gym with a wide range of fitness levels. Fun events. I really look forward to working out, seeing the coaches and the members. Come give it a try!
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Karen Brill
★ 5
I will never be able to put into words how I truly feel about Polarize Crossfit. I was so terrified to arrive at my first workout. I was feeling so self conscious, and out of shape, and so unhappy with my own body. I never in my life enjoyed working out, and could always come up with an excuse. The coaches have brought out the best in me, and have been so encouraging from the very beginning. Polarize has changed my life forever. I now look forward to the five days that I get to spend in the gym. I look forward to seeing each one of the coaches. I am down 55lbs and going strong, accomplishing things that I never thought possible, and loving how great being strong feels. I would recommend Polarize to anyone and everyone, and would encourage you to come and be a part of the PCF Family. Thanks PCF xoxo
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Susan Parkhurst
★ 5
The Community at Polarize Crossfit's gym is awesome! All of the members are welcoming and go out of their way to make a new member feel comfortable. The children's play area is centrally located so mom's (and dads) can work out without worrying about their little ones safety. Fitness comes in all shapes and sizes and Polarize CrossFit focuses on helping each individual meet their goals!
Source: Google