★ 5

Great people and outstanding coaching. I've been to many other crossfit gym's, One Nation is by far the best of the best. Nothing can compare to getting coached up by Austin, Spencer and James.

Source: Google

★ 5

Was a member at One Nation for two years after moving to the area from Cincinnati. Chose this gym initially due to price and multiple locations. After being at a few different Crossfit gyms since 2016, I have found One Nation to be the best in programming, coaching, cleanliness and community. From members to drop in, everyone gets the best coaching out there. Can't recommend enough!

Source: Google

★ 5

Source: Google

★ 5

Great coaches, great people and friendly atmosphere! Amazing experience overall!!

Source: Google

★ 5

CrossFit One Nation is a fantastic gym! I started my CrossFit journey in spring 2016 at the Waltham location. I travel for work and have dropped into many other boxes. I have to say the coaching is truly exceptional at One Nation. The coaches and the community are incredibly welcoming, the coaches always have advice about choosing appropriate scales or modifications. There is also ample parking, lots of equipment, and great facilities.

I moved to Somerville so for simplicity sake I changed gyms, but I'm keeping a punch card to drop in and visit the CFON family when I can!

Source: Google

★ 5

The best!

Source: Google

★ 5

I love CrossFit One Nation! The coaches are amazing and really support you through your fitness journey. The facilities are clean and have enough equipment for everyone. The community here is unlike any other and I would recommend this place to anyone looking for a good workout and positive, supportive place to be.

Source: Google

★ 5

Source: Google

★ 5

Source: Google

★ 5

Great Box to Drop-in whilst in the area for business. Tom is a fantastic coach. The other members were really friendly and made me feel right at home! Fantastic facility. Will certainly be back, next time I am over.

Source: Google

★ 5

Source: Google

★ 5

Source: Google

★ 5

The trainers care, you can't ask for more.

Source: Google

★ 5

Source: Google

★ 5

Great programming, terrific coaches, dedicated members at all ability levels.

Source: Google

★ 5

Source: Google

★ 5

Source: Google

★ 5

LOVE this place. Each coach is incredibly attentive and goes above and beyond to learn about each athlete so they can better coach them. Facility is huge with a decent locker room.

Source: Google

★ 5

Dropped in to Crossfit One Nation while on a business trip. Was a little intimidated by the WOD but the group was welcoming and great to sweat with. The WOD was easily scaled to any level and challenging to the level I needed. The coach kept me from losing form and encouraged us all the whole time. Overall a great place to work out and I hope to get back there again for another WOD.

Source: Google

★ 5

Been at the Crossfit game for about eight years. This is one of the most welcoming and challenging gyms I have ever been into. They have open gym times and the coaching is always available for questions. Highly recommended.

Source: Google

★ 5

I joined CrossFit ONE Nation - Waltham back in August and after only 2 1/2 months I can honestly say it's been one of the best decisions I've made. The atmosphere is welcoming and friendly. The coaches are inspiring, encouraging and make every effort to help you improve and accomplish personal goals. I look forward to going to CrossFit ONE Nation every day, learning new skills, working on personal goals and spending time and working hard with great people. Highly recommended to anyone wanting to improve their lifestyle!

Source: Google

★ 5

One Nation is awesome! When I joined One Nation I had no prior experience with crossfit. I was nervous about learning the movements and being able to keep up with the workouts. The coaches at One Nation were very welcoming and knowledgeable about scaling the workouts. They manage to provide individual attention to members in a group setting. They place a focus on maintaining proper form while pushing yourself to meet your fitness goals.

Source: Google

★ 5

Joining CrossFit ONE Nation two months ago was a great decision! I had free trial workouts at a number of crossfit gyms before ultimately deciding on ONE Nation - Waltham. The facility, location, class schedules and coaches are excellent. Also, the pricing is far more competitive than any nearby crossfit locations.

ONE Nation is an awesome gym for anyone regardless of age or physical ability/experience, and there is a fun, family-type atmosphere. Highly recommend.

Source: Google

★ 5

Source: Google

★ 5

5 STARS. No matter where you're at in your level of fitness, whether you're experienced, or brand new, the coaches of CrossFit One Nation Waltham will meet you where you're at. They are patient, highly-trained and extremely knowledgeable. Expect to be treated with kindness and encouragement in a supportive and welcoming community. You will learn more about yourself than you thought possible, form some pretty awesome friendships from people who come from all walks of life, and you have the entire staff (JC, Austin, and Matt) and Coaching staff invested in your well-being and growth. The Head Coach, Erika Snyder, goes above and beyond in working with members and she has truly set the tone for the community. We start workouts together and we end workouts together. Not many gyms can say that they do the same, it varies. But here, you are part of something bigger than yourself and you belong, from day one. Everyone in class knows each other's name, something so simple, but speaks volumes. Classes are a lot of fun, and is the best hour of your day (maybe besides breakfast)

Source: Google

★ 5

Great facilities, coaching, and community One Nation has it all! From my first day the coaching staff and the members made me fill right at home. The coaching staff is friendly and extremely knowledgeable. If your looking for a box drop in and give it a shot, you won't be disappointed!

Source: Google

★ 5

I have to admit, I am a little biased, but I love all the coaches there!!! Give it a try!!!

Source: Google

★ 5

Perhaps the most amazing coaching staff and community in the area. I am proud to be a part of this community and see the head coach, Erika, thrive as a standout leader. She makes all the members feel welcomed and loved -- it's easy to see why ONE Nation Waltham is turning into one of the most popular new gyms in the area! A pristine facility and world class coaching.

Source: Google

★ 5

I have been CrossFitting for almost 4 years and during that time have moved 3 times and worked out at a variety of different CF boxes. One Nation has been my favorite BY FAR! Every day I walk through the doors I am greeted with a smile and I know I am being coached by some of the best trainers around. Each coach has a genuine desire to help each member reach their greatest potential. The level of knowledge the coaching staff has is unprecedented. The facility is huge and always clean. The members are all friendly with a strong sense of community that goes beyond 3,2,1 go! If you're looking for an awesome facility with top notch trainers that will kick your butt while also remembering your name, come try out One Nation!

Source: Google

★ 5

As a person who is for the most part wildly unathletic, I signed up for the on ramp program really unsure of what I was getting myself into. After the two week intro class was up I was totally hooked. Everyone at the gym (coaches and members alike) push you to do your best and challenge yourself. It's such a positive environment to be in and feels like your surrounded by family. Even though the classes are in a group setting, I've never felt lost and the coaches are fantastic at making sure that every person gets individual attention and feels confident in the skills they are going over before the workout starts. After only six months of being a member at One Nation, I'm feeling healthier, stronger and was even convinced to sign up for the CrossFit Games!!

Source: Google

★ 5

Fantastic coaching! All the coaches are friendly, welcoming and professional. They are able to adapt all WODs to any activity levels and are certain to make sure your safety comes first. I've never had so much fun working out. The members are wonderful people and they make the sense of community great. I highly recommend CrossFit ONE Nation to anyone looking for a box.

Source: Google

★ 2

My review is only for the way my daughter and I were treated while visiting the place.
My daughter does Cross Fit in Brazil and was very excited to see that place.
We were so disappointed. The girls treated us as a minority people, one that was trained was rude because I was answering for my daughter as she doesn't speak english and she looked at me and ask if my daughter couldn't not talk for herself.
My daughter felt so bad specially because they didn't even offer to show us the place. She just ask to leave.
People were cold as could be.

Source: Google

★ 5

CrossFit ONE Nation is a great gym with an amazing community. The coaching staff is STACKED with talented, passionate coaches. Every day is different, challenging, and I leave a little bit better than I was the day before.

Source: Google

★ 5

This is a community driven CrossFit box founded on the fundamental beliefs that CrossFit HQ has been perfecting for years. Good people, great coaching, fun environment and results driven!

Source: Google

★ 5

Lots of things separate CrossFit ONE Nation from other fitness programs, but the most important is the unique supportive community. People join for the fitness, but stay because of the friendships and bonds they develop in the community. Aside from building better human beings, ONE Nation works to develop a community of like-minded individuals who support, encourage, motivate, and assist one another in reaching their personal goals. Come by anytime and check it out.

Source: Google