I have had some experience working out on my own, but not really in a group gym environment. So it was really cool to work out here, because they've developed a great sense of comradery and community. The team spirit atmosphere really helps when you're going through intense workouts! The biggest advantage to working out here was that they were able to modify things on the fly based on limitations I had surrounding certain movements or lifts. Keep doing what you're doing AU! read more

More than just a box or a gym. This is way more. Great trainers and coaches with lots of programming and events. There is something for everyone from Boot Camps, CrossFit, Olympic Weightlifting, and a take on OCR training that's unique with hands on training from great people who actually do these races and excel. We have groups that compete in various events, we run races, we train, we go to the beach... we have intro box competitions and generally a great community focused on healthy balanced life. Kids programs too as it is a family focused kinda place read more

I have been coming to this CrossFit/ bootcamp gym since March of 2018. I am 42 years old, married with two kids and a very busy schedule. Unfortunately things fall apart when you don't have time. In my younger years, I was extremely athletic and played collegiate water polo and served in the Marine Corps. Before having kids (11 years ago) I still would manage to take care of myself by trying to eat right and going to LA Fitness about 3 times a week and doing weight lifting and some light cardio. As I have gotten older and "The schedule" has been populated with my kids sporting events, school functions, birthday parties you name it it's been hard to make time for myself. My body turned into an official dad bod and I noticed my energy level was lacking. I also noticed that my blood pressure was elevated and the writing is on the wall at my age that things are only going to get worse unless I make some changes. I did not want to join CrossFit but my wife made me. I've heard nothing but horror stories about people injuring themselves and how competitive it is and how coaches put pressures on their athletes and it ends up being just a short-term commitment. So kicking and screaming my wife and I signed up after a week of doing CrossFit and some of their boot camp classes. since that time I have averaged at least 4 days a week and sometimes I do 6 days a week. The great part of CrossFit is that you don't mess around. It's not like you're sitting in the gym waiting for a piece of equipment to open up while playing on your phone and not being focused. Misery loves company and that's how CrossFit works. By working in small groups in a team setting everyone has a limited amount of time to complete the daily exercise. After an hour and for me on average 400 to 600 calories burned I feel so great and alive. No other workout routine can give you so much in so little time. I think the best part of CrossFit is the family environment. Most people here are not teenyboppers or people that are looking to date other people, they are folks that are established and are trying their best to achieve personal goals and there is definitely a sense of community when we're all working out together. What sets this CrossFit gym apart from others I believe from what I hear from my other friends at other gyms is our coaches are absolutely amazing. No two are alike and they all have great strengths individually. Collectively they are all professionals and masters of their craft and they all care about you, your goals, and your health. I love the team that they assembled I think I will be coming here a long time because I have so much fun doing hard work and the results I have seen are absolutely amazing. Pound-for-pound I am probably the strongest I have ever been in my life and that's pretty crazy because I was pretty fit in the Marine Corps. You can't go wrong at this gym but I will say things are not easy. You have to put in the work. You have to be focused. You have to work on things that coaches to tell you to do. You have to like the feeling of sweat dripping all over the place. Thank you athletic United and all the coaches. You know who you are. You guys are amazing people. You have absolutely exceeded my expectations and I cannot imagine a life without being a part of this gym. read more

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This is not just your average box gym or CrossFit place!! If you are looking for a place that cares about you, treats you like family and teaches you, then this is the place. No judgment and a lot of care in making you are doing the movements correctly. Me being a first timer to this box stuff was intimidating to say the least but they make you feel comfortable and they show you how to modify if you can't do it. I have now been going here over a year and I wouldn't go anywhere else. I even drive 20 miles each way just to come here that's how much I enjoy it. I take the Bootcamp class and I also do Spartan training for my OCR events. They even will coach you to compete. It's just an amazing place that makes you feel at home. I definitely recommend to come check it out. read more

I started working out in the place with the mentality that I wasn't going to last more than a month or that I was going to pay my membership and not show up just like most of us in any other fitness center, well, after 2 years I feel in the best shape of my life and I look forward to show up to the box everyday. The coaching staff is very knowledgeable and what I like about it is that they are always watching for movement correction and form. A lot of times we get intimated walking into a fitness place because we feel that we are not good compare to the athletes in the gym, well in this place from the moment you walk in you feel right in place and the community is amazing, always willing to help, encourage, and giving you the extra push!!!! read more

If you want to push your mind and your body to it's limits, then KO CrossFit is where it's at. KO CrossFit creates new workouts on a daily basis, so you never get tired of the same ol' routine. The daily workouts are not movements just pulled out of a hat, but instead are systematic movements that build your strength, stamina, power, flexibility, and above all, mental tenacity. The coaches take everyones athletic level into consideration and guide all members to perfect form, and thus better performance. The workouts are not easy, but they are attainable. Camaraderie between fellow athletes, and coaches, as they cheer people on to finish the workout is not something you will find at a normal gym. The wife and I sat down and prioritized what we wanted in life, health and well being ranked higher than cable and labels, so we both joined and have lost no sleep over our decision. KO CrossFit has made me a stronger person in life, and in traffic. Highly recommend visiting the box and seeing if working out your mind and body is right for you. read more

Great staff, clean and working equipment (both at crossfit and the fitness center), members are all really encouraging all the class times are really convenient and the student discount is also a plus! AND they have a free bootcamp for all members and non members. Overall, this is an amazing box!(: read more

I've been coming here for over 2 years now. I love it so much I become a healthier and athletic mommy of soon to be of 2. The coaches are great and the people that come here are so great too. I love the motivation we give each other and the team work we share. I will never leave. read more

I've been coming to this gym for over a year and I absolutely love it. It challenges me every day and I've learned to do so many things I didn't know I was capable of doing. but thanks to my awesome coach Robbie I've accomplished so much. If you want a challenge you should check this gym out. Everyone is so friendly and encouraging as well. I love Athletics United!! read more

Ive been working out at athletics united for almost 2 years and this has been the longest membership I've sustained with a gym. They really have built a great sense of community with challenging workouts for all levels of fitness: crossfit, powerlifting, olympic lifting, bootcamp OCR and more. I highly recommend checking it out!! read more

I've been going to AU for over a year now and it's a great BOX to workout at. My coach Rob pushes, motivate's our small group every morning. I highly recommend AU! read more

I've been doing Crossfit just a little over a year now. I recently joined Athletics United and in the couple of months I've been training here I'm stronger, faster and fitter. Athletic United offers a variety of classes such as Crossfit, barbell training, small group training, boot camp training and ocr. Athletic United also have some of the best coaches that really pushes you towards your goals. Athletic United is more than a gym it's a family with multiple events such as bbqs, in house competitions, and various social events. If you're looking for more than a gym I recommend Athletic United, it would change your life. read more

Love this place! I came in as someone who hadn't worked out in years. they were welcoming and work with you to make sure you are working safely. So much fun and a friendly environment! Plus, its under new management now and they redid the interior- it looks so fresh and modern! Definitely Recommend checking it out! read more

I love coming to the gym. I'm here throughout the week religiously I do the small group training with Prince and it's great. He modifies every single workout for you and makes sure you are doing it correctly so you don't hurt yourself. Prince is a great trainer he isn't just your average mean gym trainer he's super nice and pushes you to your full potential. read more

For anyone looking to get in shape and push through their limits, join KO Crossfit. I started to go religiously for 2 months and I already lost 7% of my body fat. I am also glad to meet a great community of motivated people. It has been a terrific experience so far. read more

Workouts are never the same. They have a fundamentals class as an introduction to Crossfit so you understand the moves. The trainers are excellent. They push you to your best, while also making sure your form is right. Really enjoying my time there. read more

I started at KO a few months ago and I was hooked by my first class. After one week my husband also joined and we have enjoyed having the common bond of enjoying our WODs together. The trainers are amazing and keep us motivated. I love the fact that they offer child care! I was hesitant with the 5th star because child care is not offered on the weekends- It would be awesome if they could start adding it. Overall- this place is amazing and already changing my life for the better. Thanks KO read more

KO crossfit is one those places you can call home. The environment is very friendly and everyone on the gym is always willing to help you out to the best of their abilities. They have expanded and KO continues to grow which is a plus. The KO staff tend to truly care about each and every person who walks through the door. Each coach has a different style of teaching but they are all very beneficial . I've been to many different boxes but KO crossfit is Definatly the best of the best . I would recommend it to anyone in the area or just dropping in. read more

Amazingly helpful staff. Great atmosphere. I was almost instantly addicted once I started. You have to give this place a try.

Absolutely LOVE this gym! All the coaches are so helpful and friendly. Jake, the GM, is super nice and is up to help you with anything he can. They have a variety of class times which is really nice esp for those who work throughout the day. Definitely recommend this gym to anyone looking for Crossfit gym in riverside/corona area. read more

I'm a new member at this gym (also new to CrossFit) and I love this place. The workout classes are great, the trainers are great, and the other gym goers are great. By far worth every penny. They do an awesome job! read more

I have been a member at other boxes and have dropped in at boxes all around. KO is one of the best boxes I've been too and am a proud member of. All of the coaches are awesome and always helping you to improve. It is CLEAN, there's child care, open gym hours and FREE bootcamp for anyone...members or non members. Highly recommend KO to anyone looking for a new CrossFit home. Thank you KO Team! read more

Only been to one other crossfit gym and while the experience there wasnt a bad one KO just feels like a better fit. The coach at the other gym spent about 30min trying to teach me to kip i couldn't do it and thought i wouldn't be able to. The coaches at KO were able to have me kipping in under 5 minutes. highly recommend this place. read more

My husband and I joined KO CrossFit last month and just finished 5 out of 6 of the Foundations classes, where you learn all the basics of CrossFit. Jennifer is our "coach" and she is REALLY awesome. I can tell she really has a natural talent for teaching. I never feel rushed to figure out how to do a movement she's teaching us. She makes sure we understand it and that we're doing it correctly, and then we move on to get a really great workout in. She's also great at making sure the intensity is challenging enough for all fitness levels. I have had A LOT of trainers in the past, and I am really, really impressed with her. Everyone at KO - the coaches and those taking the classes - are so encouraging and positive. I really get the impression that they know what they are talking about. I look forward to every session! read more

Great gym , great people , friendly atmosphere and a second fam. Highly recommend anyone come in and give it a go. Caters to all skill levels . read more

From the minute I walked in to KO Crossfit I felt welcomed. EVERYBODY there is nice , helpful, and supportive. The trainers are knowledgable and genuinely want you to succeed. And...it's fun!!!!! (coming from me-someone who hates exercise, this is a big deal) I actually look forward to going. I can't say enough great things about this place. Will definitely be coming back for a long time. read more

If you have to force yourself to go workout everyday, then you NEED to try out AU. Iv'e never pushed myself so hard, while still having so much fun. The people here are awesome, and the environment is super positive and encouraging. I literally count down the hours till it's gym time. read more

What can I say! Jake has helped change me and my wife lives. We have lost a total of 80 pounds, we know how to eat better, and CrossFit has provided the encouraging atmosphere we never received at LA Fitness. I have referred friends, family, and neighbors here and they all love it! Great place with awesome Trainers. read more

I joined AU in April of 2017. This gym has transformed my body. I am so much stronger, more flexible and have more stamina. All of the coaches are professional, highly motivated and very encouraging. The people are great. I have never enjoyed working out as much as I do now. Please check it out for yourselves. If you like group workouts, you won't be disappointed. read more

AU's CrossFit atmosphere is by far the most fun, friendly, sweaty, and empowering fitness location I've been to. You'll never, ever repeat the same workout, and it's so fast-paced that you're done with an intense workout before you know it. All around, coaches and members make you feel welcome, and motivate you to push yourself harder each and every day to meet your goals. I recommend this place to anyone looking for a challenge, looking to have fun while working out, and looking to meet amazing, new people! read more

I've been lifting weights for several years now, but just started Crossfit in April and I LOVE IT! AU made the switch from strength training at a small gym to crossfit training at a box simple, rewarding, and fun! I've seen myself get stronger in just the last 2 and a half months and feel a part of the AU family. Members and coaches alike have been welcome, helpful, and motivating! read more

Heard about this place from a friend who used to workout at The Camp, but then started going to AU because of the trainers and atmosphere. This place prides itself on comradery, teamwork, and a positive atmosphere. After my first week in their bootcamp program I could see why. Started working out three days a week with Callie in the evenings and have not looked back. Really like the small groups and session schedule. Works out perfectly with my work schedule. Overall, a perfect way to get in a challenging workout and make new friends. read more

Joining this box is the best choice I've made in long time. I reserve 5 stars for absolute perfection, so 4 start is great. I joined in September of 2012, and have thoroughly enjoyed the coaching and community of KO Crossfit. I have made a bit of progress as far as my fitness level goes and have lost 10 lbs as a result. I know I could probably do better if I could commit to the nutrition part. I highly recommend this box. read more

Though I've dabbled in Crossfit before, I came into KO wanting more specific weightlifting training. Larry Knapp, the weightlifting coach there, was always helpful and friendly. He is USA Weightlifting certified and is a great coach as well as an all around good dude. All the other coaches are also helpful and gave me improvement tips every now and again despite me being an open gymmer. If you want to improve your technical weightlifting, KO Crossfit is a great place to check out. read more

KO Crossfit is the best! It's a professional, friendly, and clean environment. All the coaches are very knowledgable, welcoming, and dedicated to your success, and the members are just as friendly and encouraging. The workouts are outstanding and always challenging. I highly recommend anyone looking to join Crossfit come to KO! read more

I like going to KO because is a great gym to go work out. I enjoy taking the classes during the week.