★ 5

Update: 2+ years in and still loving it!

I joined 9Round because there are no class times, which makes it super easy to fit into my day. But I’ve stayed because the workouts are awesome, the trainers are super motivating, and the other members are great. It’s a fun, fast workout that honestly feels like therapy sometimes. Love this place!

Source: Google

★ 5

9Round is so much more than just a place to go for a workout! Challenge yourself at your own pace and be a part of a super supportive community. 30 minutes for great results!
This gym rocks! I have tried all different types of gyms and this is the one that keeps me coming back. It’s about results and community and I love both!

Source: Google

★ 5

9 Round Chelmsford is the absolute best place around to get a great workout on a busy schedule. The trainers are awesome, the owner is committed to constant improvements! New technology, killer workouts, great community of member and trainers… must try!! Best work out in 30 minutes!

Source: Google

★ 5

I have been going to this gym for 6 years and I love it! The workout is so well rounded and high energy and you’re done in 30 minutes! Added plus is they have best trainers and members. I highly recommend it!!

Source: Google

★ 5

The trainers are fantastic and I love the fact that I can get a great workout in only 30 minutes!! And no class times so I can show up whenever I want! The workouts are always different which makes it so much fun. Now that we are open 24/7 it is even easier to find time to fit in a great sweat! I've been here 7 years and love it!

Source: Google

★ 5

Absolutely fabulous workout with Jim & Liv! I beat my goal and feeling great! Clean place and great equipment and strong energy!! Feeling good 👍🏼

Source: Google

★ 5

Great place been going for about 2 months going three times a week and already feel more fit. Trainers are positive and it’s easy to get a great workout in in just 30 minutes.

Source: Google

★ 5

I joined this gym almost a year ago, and I absolutely love it! It's super easy to fit into my schedule, the trainers are wonderful and are always pushing you to do your best, and it's fun and engaging! I've lost thirty pounds since I started here!

Source: Google

★ 5

Convenience and flexibility were two things I was looking for and I found it here. It’s open 24/7 with 30 minute workouts that changes daily and the best part is it never feels like a workout. There’s no set schedule so you can start working out when you’re ready. The trainers are awesome, always supportive, and they always make you feel welcome. Definitely would recommend this place to everyone!! :)

Source: Google

★ 5

9round fitness in Chelmsford is such a great workout! You can’t beat it… 30 minutes and no class times and they also are 24/7 now! The trainers and members are awesome! It always a good time and good workout! What I really enjoy most is you can go at your own pace and the trainers are always accommodating and still push you, it’s truly the best workout You can get in 30 minutes!

Source: Google

★ 5

Love it here!! It’s such a fun and supportive community!!

Source: Google

★ 5

This place is great. Quick & effective workouts on your schedule. The trainers are all knowledgeable & personable.

Source: Google

★ 5

Love going here all the trainers are so positive and supportive It’s a great place and great workout.

Source: Google

★ 5

This full body workout will get you or keep you in shape! The workout is different every day and you can get it all done in 30 minutes! And the gym is opened 24/7! How can you lose?
The trainers are kind, fun and are able to assist all fitness levels.

Source: Google

★ 5

Always a great workout! Each trainer takes the time to get to know everyone's little quirks and each one brings a different vibe to the gym. Can't beat it!

Source: Google

★ 5

Jamie kicked my a$$ today! Thanks for always having the best playlist.

Source: Google

★ 5

9round is an awesome kickboxing gym. The staff is so welcoming and helpful and the community is amazing. Everyone is so friendly and supportive. There's no better place to workout!

Source: Google

★ 5

9Round is a great place to workout. Whether you want an independent workout or to be part of a community, you will get the best workout. It’s great that the gym is 24/7 and the trainers are fabulous and will push you hard with a smile. Olivia consistently kicks my butt!!!

Source: Google

★ 5

Update: this is my 9th month in this place and I love it!! It always has the positive energy and big motivations from very professional trainers. Highly recommend!

Amazing energy and great instructors who keep me motivated and always welcoming everyone with a big smile! The gym is always clean and organized.
It’s a no judgement zone and a friendly vibe. Their music list is always good and I’m able to get various workouts in each round. It’s my 14th class already and I’m feeling the difference. Definitely looking forward to hit bigger milestones at this place!!

Source: Google

★ 5

Not your average gym!!!
I have been a member for years and I keep getting stronger and hitting goals I never thought possible.
The trainers are knowledgeable and understanding… they push me hard but never demand I do something beyond my abilities.
They hours are FANTASTIC (24/7) Ana’s I absolutely love that I can come at any time and jump in event there minutes. No class times mean I’m never late. It’s wonderful for a working mom!!!

Source: Google

★ 5

Best.Workout.Ever. Collectively the trainers here are top-notch, really interested in helping members get the most out of their time in the gym. Bustahhhh and Lil Ninja are absolute standouts, taking no excuses! Love that the workouts are different every time.
Update: still going strong! Can't say enough about these trainers - Joenado, Wild Bill, Fireball, Liv2Box - SO encouraging and motivating!!!

Source: Google

★ 5

I signed up at 9 round about a year ago and I can say hands down, it was the best decision I have ever made in regards to my fitness journey. I went in on my first day and had no experience with any sort of boxing or kick boxing, however Jim and the team made me feel right at home and I haven’t looked back ever since. You won’t be just getting a workout, but it’s a great place to make new friends. Every trainer is EXCELLENT and not only kick your butt with a fantastic, efficient workout, but make it a really fun time as well. People who say you can’t have fun working out, haven’t tried 9 round yet. Kickboxing isn’t just an incredible full body physical workout, there is also cognitive aspect to the workout as well, whether you just want to vent some frustrations by punching and kicking a bag or if you really want to initiate that mind and muscle connection. You will always feel welcome and comfortable at 9 round. I feel like I am on the best shape in my life and look forward to my morning workouts. 10 out of 10 highly recommend!

Source: Google

★ 5

Joining 9Round has been one of the best decisions I’ve made for both my physical and mental health. The workouts are intense and challenging, change daily and accessible to all fitness levels. The coaches meet you wherever you are and take the time to correct form, push you past your limits, and keep every session engaging and varied. A special shout out to Coach Liv, who makes every member feel special and can provide modifications for any round!

What really sets this gym apart, though, is the community. From day one, I felt welcomed and encouraged — people genuinely rooting for each other to grow stronger. Whether you’re a beginner learning the basics or more advanced, there's a strong sense of camaraderie that keeps you coming back. Give it a try, you won't regret it!

Source: Google

★ 5

9Round Chelmsford is a top kickboxing fitness studio. The full-body, HIIT workouts are fun and challenging, combining strength training and cardio in a 30-minute session.

The circuit-style format has no set class times. And with 24 x 7 access, you can get a great workout when it is convenient for you.

If you do get to the gym when the trainers are there, it just adds to the fun! The trainers are knowledgeable and friendly, dedicated to helping people achieve their goals.

Source: Google

★ 5

9Round trainers are all so nice! They teach kickboxing fundamentals and are so motivational.

Source: Google

★ 5

I’m still fairly new to 9round but I have felt so welcomed into the family! There is so much to love about it- the quick workout (with option of making it longer) the option of working out with a trainer but with the flexibility of coming in when it’s convenient to you and the butt kicking workouts! I’m so happy I took the plunge and joined!

Source: Google

★ 5

Great gym, small but mighty! Atmosphere is great, coaches and member are all so motivating! Go in a bad mood, tired or whatever brings you in and leave feeling recharged mentally and physically!!!

Source: Google

★ 5

I've been working out at 9Round for a few weeks and it's going great. Given the state of the world right now, it feels good to get in there and punch something. There are no set class times, which is a huge plus! I love that I can drop in when it fits my schedule—no more excuses about being too late for a class, or stuck in traffic. The instructors here are fun and motivating. They push you to do your best while still making sure you’re comfortable at your own fitness level.

As someone who was recently working out at OrangeTheory, I appreciate the on-the-screen heart rate monitor system; I love to collect data about calories burned and heart rate zone distribution. It's optional to get the heart rate monitor, but I will note that they're on a different system than OrangeTheory and you do have to buy the 9Round-specific one.

For those of you with some kickboxing experience, you can bring your own gloves and handwraps. Unlike ilovekickboxing and most martial arts, this is a shoes-on workout. The whole place is kept spotless and all the equipment is in good condition.

The 30-minute workouts are effective, and I haven’t been as sore as I expected compared to longer workouts, even going at a pretty high intensity for the half hour.

Wherever you are on your fitness journey, if you’re looking for a flexible and fun place to get a great workout, this one is worth checking out!

Source: Google

★ 5

9Roundin Chelmsford is easily the best gym out there. Not only is the workout incredible but there is no better seratonin boost than spending a morning with trainers Jaime "Bustah" and "Wild" Bill. They make workouts so much fun, but still leave you feeling accomplished, strong and badass. I still drive over an hour to go workout there when I can. If you're looking for a gym, go here - you absolutely won't regret it.

Source: Google

★ 5

Love this place — Trainers are super knowledgeable, everyone is welcoming, and the workouts are different (and fun) every time— bonus bc each session is only 30 minutes so easy to motivate yourself to go! 11/10 would recommend

Source: Google

★ 5

The trainers are welcoming, and knowledgable.

Source: Google

★ 5

Amazing trainers who have a 6th sense at knowing you can give more. Perfect for people who are just starting and want something more exciting then just a gym. Shout out to Lil Ninja, Tammy, and K.O who always make the workout exiting! 🥊🥊

Source: Google

★ 5

I have been a member of 9 Rounds for 5 years, the workout is hard but awesome, and the trainers are amazing. You will never be disappointed in your workout!!! I would recommend to anyone to come try it, you will not be disappointed.

Source: Google

★ 5

My first time kickboxing at 9round is amazing! First off, everyone here is so helpful. They teach you helpful techniques and workouts that'll help you progress over time. I've been here for about six months and am still a member! I feel a lot better about my overall health and fitness; I can't thank them enough!

Source: Google

★ 5

Very new to the gym scene, even newer to kickboxing. The 9round chelmsford location and team have been awesome in all aspects, teaching technique, correcting posture, and many other tips. Overall a great experience and atmosphere here.

Source: Google

★ 5

9 Round is Best overall work i've ever had. What a supportive, knowledgeable and fun staff! I am in my late 50s and workouts are individualized or modified to meet the needs of everyone. Having fun and feeling great at 9 Round!!! RBG

Source: Google

★ 5

I’ve been a member for over six years now and I love it! You get a full body workout in 30 minutes and the workouts are different every day. The trainers are awesome and push you to do your best. The members are friendly and great too!

Source: Google

★ 5

Can’t recommend this place enough. The trainers are always friendly and encouraging, and I’ve really gotten to know the members over the past few years. Say hi to Jim when you come to visit!

Source: Google

★ 5

I love 9 round fitness! It is a great place if you are a beginner or a pro at kickboxing! Best high intensity workout with amazing trainers. The environment is so friendly and it is truly the best gym i’ve joined!

Source: Google

★ 5

Source: Google

★ 5

Thus is such an awesome gym. It is an amazing full body workout and the trainers are all so great, friendly, and welcoming. It's the best I've ever been to and I have been a member since 2019. Can't recommend it enough!

Source: Google

★ 5

I’ve been to this location of 9rounds for six months. It’s a great workout for anyone looking to get in shape and the best part is it’s just 30 mins. I especially like that it’s a full body workout. The staff is very friendly & helpful. I am loving it.

Source: Google

★ 5

This is a great gym that offers an excellent full body workout in 30 minutes for all levels. The workouts are always different and keep you moving the entire time- it’s fun and flies by! The trainers are awesome and dedicated to helping you with your workout whether its to modify the exercise, help you with your form or just encourage you to push yourself. Everyone is very supportive of one another and you will be welcomed from day one.

Source: Google

★ 5

Source: Google

★ 5

I joined 9round Chelmsford,Ma 4 months ago, after many years of doing kardio kickboxing classes (non-contact) at different gyms. I am a huge fan of kickboxing, but I was sceptical at first about joining the gym where you hit the real bags. I tried competitior gyms before...not good at all... Well, 9round Chelmsford is out of this world! I just fell in love with this hidden gem of a gym! Trainors pay attention and really care, they taught me so much about proper positioning, proper moves, how to modify my workout if I needed to! The workouts are intense, but that's what I need! I have no time to just dance around - I go to gym to break sweat and get stronger and healthier - and 9round Chelmsford is the gym to do it at! No pain - no gain!!! And, at the same time - the workouts are super fun - time just flies by there! No more boring treadmills for me! So, if you want a clean gym with amazing trainors, always ready to help make your workout even more efficient and safe at the same time, if you want intense workouts and amazing playlists that are always fun and never boring - 9round is the gym for you! Oh, and having no class time is amazing too - no more running couple of mins late for the class- if I am stuck in traffic and 10 mins late - i just leave 10 mins later and not miss a bit of my workout! Win-win!

Source: Google

★ 5

Source: Google

★ 5

Love this gym, the workouts and the trainers!

Source: Google

★ 4

Fun great energetic workout

Source: Google

★ 5

By far the best sweat-inducing, body-toning workout I’ve ever participated in! The workout is fun, yet intense.

The trainers are fantastic. They give great instructions on your form and how you can modify the round for your skill level.

Source: Google

★ 5

I have been a member for just over 2 years. 9Round provides a very efficient total body workout in just over 30 minutes. You work on strength and cardio. I originally joined because I was looking for something that was as efficient as running - 1/2 hour is all you need to get a decent workout running. I could no longer run (bad knees) and everything else requires considerable more time. After the first workout I was hooked. In fact, the 9 round workout is a better workout than anything else I have done. Everyday is a different workout. You never get bored. There is always a trainer led round where you work with the trainer. This is always a fun and challenging round. I had joined after recovering from shoulder surgery. I thought I had already gained my strength back, but was I in for a surprise when I got to the speed bag. My shoulder was at best only 50%. When I started, I could not really hit the speed bag with any rhythm but within a month I got the knack of it and now really enjoy that station. Within a few months, my shoulder not only regained strength, but got stronger. I highly recommend joining. It is a fantastic workout with great members and fantastic trainers.

Source: Google

★ 5

Love 9R! From the trainers to members is such a great experience. The no class times are key and I look forward to my workout every time.

Source: Google

★ 5

I have never been a fan of going to the gym until I joined 9Round. The trainers are encouraging and no one ever makes you feel "less than" if you need to modify the workout. It is a great way to start the day with a burst of energy or end the day by releasing frustrations from the workday !

Source: Google

★ 5

UPDATE to the UPDATE: I took an ill advised hiatus from 9R for about a year. I was battling some personal issues and one of the steps to “recover” was exercise. I immediately thought of the satisfaction from a 9R workout. I’m back. And it’s the best!

UPDATE: Has it been a year? Already? Love my 9Round. I go 3-4 times a week and can’t get enough. The trainers are motivational and inspiring, the bags are so much fun to unload on, and at 47, I feel great! I’m so glad I gave it a shot last year.

Ok, to be fair, I’ve only worked out here twice. Tomorrow will be my third time. So far...this place is fantastic. The right amount of cardio, the right amount of core. 30 mins was never so much fun. I’m 46 and haven’t worked out in 5 years. I’ll keep going!!

Source: Google

★ 5

Absolutely love this gym! It’s always clean and running so smoothly! The trainers are awesome and super attentive! It’s the variety of workouts that change daily that insures you don’t get “bored” of the same workouts over and over! The 30 minutes fly by! 10/10 would recommend!

Source: Google

★ 3

Source: Google

★ 5

I love boxing workouts because they really give me results. But I hate having to be to a class at a certain time. 9 round is the perfect option for me because I can drop in at any time and start my boxing circuit, no set class times! It makes the most of 30 minutes and is fun. The trainers are extremely knowledgeable and friendly. The workouts are different every time so it keeps it interesting. I highly recommend!

Source: Google

★ 5

Trainers are great and very patient. I’m a beginner and they take time to explain the basics.

Source: Google

★ 5

I love the trainers, who keep me very motivated. I love how every time I go it’s a brand new workout. I even love scheduling my workouts because it holds me accountable. I’ve been a member for over a year and I have never gotten tired of going. For the first time in my entire life I actually look forward to working out!

Source: Google

★ 5

Source: Google

★ 5

Source: Google

★ 5

My favorite part of 9 Round is the no set class times. My schedule is so busy and changes daily I love that I can just show up and jump right in when it works for my day. The workouts are great as well. In 30 minutes you target every area of your body and I always feel so accomplished and amazing after!!!

Source: Google

★ 2

Nah

Source: Google

★ 5

Source: Google

★ 5

love how I can get an great full intense workout done in a short amount of time - friendly staff that are willing to help you and motivate you!!

Source: Google

★ 5

Source: Google