The center is an official CrossFit® affiliate. Last checked: 11/09/2025
CrossFit is a registered trademark owned by CrossFit, LLC, which is not affiliated with FitFit United States.

Information about XS CrossFit®
Opening hours
- Monday: 5:00 AM – 8:00 PM
- Tuesday: 5:00 AM – 8:00 PM
- Wednesday: 5:00 AM – 8:00 PM
- Thursday: 5:00 AM – 8:00 PM
- Friday: 5:00 AM – 8:00 PM
- Saturday: 8:30 AM – 1:00 PM
- Sunday: 10:00 AM – 1:00 PM
Services, Machines and Guided Classes
XS CrossFit®: Opinions

Fantastic experience: XS CrossFit has helped me get in shape and stay in shape. All of the coaches are very encouraging and help you with form or to modify exercises so every work out is amazing, it is like I have my own personal trainer each time i work out. Everyone I have worked out with has encouraged me and is friendly which makes it feel like a family after a while, and they will also hold you accountable. Thanks for making exercise fun!
Fantastic experience: I cannot say enough about XS Crossfit and the pride that Alex takes in the gym. I have been at XS for over a year and would never dream of going anywhere else. Alex has pushed me to levels I never thought were possible. The gym is a great atmosphere with other members constantly helping and pushing each other. I definitely recommend XS Crossfit to anyone looking to try Crossfit and those who have been Crossfitting for years.
Fantastic experience: I am a high school wrestler and have been a member of XS since March 2012. Since then I have become stronger, faster, and more agile. I attribute this to the fantastic trainers, Alex, TJ, and Justin who have pushed me to be my best and to the members who are always ready to cheer you on and give you a high five when you are done. I love XS Crossfit and would recommend them to anyone who is thinking about giving crossfit a try.
Fantastic experience: Ive been crossfitting at XS Crossfit for over a year now, and must say that since I moved from NY in 2009 - this gym has provided the best across the board experience for me when it comes to improving my health. All of the people are absolutely amazing, keeping you motivated and excited to come back every day. The trainers all know how to get you functionally fit and keep you safe all at the same time! I came into Crossfit only knowing how to bench and now I can perform all of the olympic lifts correctly and safely, and my body composition and ability to recover have improved ten fold! Highly recommend joining this gym as the prices are incredibly reasonable, roughly half of what you would pay in most boxes in Denver!
Fantastic experience: XScrossfit is a box that other boxes should be measured against. The atmosphere is always welcoming, the coaches are always motivational, the members are fantastic! This is more a family of like minded folks than a gym. I love this place.
Fantastic experience: I have been doing crossfit at XS Crossfit in Parker for about 5 months. I started because I wanted to mix up my workout, as the methods I had been using at Mass Market gyms had grown stale. What I found was not only a great workout that challenged me every time, but a great group of friends that I cannot wait to see at 5:30am. They help to motivate me and push me to do my best. Alex and TJ and Justin are great coaches that provide sound advice. Working out at XSCrossfit has far exceeded my expectations.
Fantastic experience: Great gym, great people, encouraging atmosphere, and great workouts!
Fantastic experience: I have been a member just over two years and I look forward to our workout every single time I go. The members made me feel welcome from day one and the coaching staff is very encouraging. In two years I think I have only done the same workout two or three times, so the variety keeps me interested. The facilities are the best in Parker, we have a track, an outdoor lifting area and the owner consistently re-invests in improvements to the gym. Thank you XS CrossFit!!!!
Fantastic experience: I started at XS CrossFit in January of 2013 with the baseball team that I coach at Ponderosa High School and haven't left. The atmosphere is fantastic made possible by the great coaches, especially Alex Etzen. I have met some fantastic people at XS who push me in my work outs every day. If you are looking for a good box XS is well worth the look.
Fantastic experience: I am originally from the Parker area but going to school out of town so when I came back on breaks I wanted to find a place I could keep doing my CrossFit training. I happened upon XS CrossFit and it has been a great experience. Alex is an awesome coach/owner with good programming. It's nice to be from out of town and feel right at home in a place. Everybody is very friendly and they have everything you could need at a box. I would definitely recommend it to anyone in the area or someone looking to drop in from out of town!
Fantastic experience: Such an amazing place to find community, fitness and supportive camaraderie! Alex and the gang are amongst the best coaches in the country! Do not miss out on this place!
Fantastic experience: I have been at XS Crossfit for about a year, and I love it!!! Fellow athletes are always a pleasure to workout with, and the staff is extremely encouraging. I have met some of the nicest people, and have grown really close to them. XS Crossfit is like a home away from home!
Fantastic experience: I joined XS Crossfit 3 weeks ago and I am hooked! The workouts are hard but amazing. Most Crossfit gyms do not have a class around lunch time, so the 1:30 class here is perfect for me. Alex has done a superb job of demonstrating the movements without making me feel outrageously like the new person. Every single person at the gym has been welcoming and I like how incredibly encouraging they are. It is awesome that you can see the WOD online before you get to class and I can track my progress. The gym is particularly clean with plenty of space and equipment. I even got to enjoy a 2 mile run on their wood chip track last week. XS Crossfit is the best Crossfit gym!
Fantastic experience: Alex is the best trainer! Very well balanced workouts and fun. He really cares about your individual needs. I highly recommend!!!
Fantastic experience: Just the best Crossfit box around!! The best coaches and best members!! I have been a member for over 2 years now and love it - this place has been a great support system for me and everyday I feel challenged and I'm always learning cause the coaches are just that good!! Come for a visit!!
Fantastic experience: My 16 year old son talked me into going with him to a Saturday team workout over a year and a half ago and I have been a member ever since. The trainers are amazing and knowledgeable. I feel like I have a personal trainer every time I walk into the gym. Everybody is friendly and encouraging and the facility is pretty cool. I would recommend XS Crossfit to anyone.
Fantastic experience: After moving to the area and trying out multiple gyms, XS Crossfit made transitioning so simple. The coaches are knowledgeable and provide a great atmosphere. I personally enjoy the flexibility to lift outside of class times and the fact that there are two gyms means that there is always space.
Fantastic experience: Great family friendly gym, the coaches are great and they are always there to help anyone from beginners to advanced. This is by far the best gym that I have ever been too.
Fantastic experience: Great people and great coaches. Not what I expected, in a good way, CrossFit to be like. All experience levels are welcome and everyone is encouraged to get a little better everyday. Owner Alex runs a great box and is invested in seeing the athletes hit their individual goals - whatever they might be.
Fantastic experience: First time Crossfit experience! Was a bit intimidated by the whole thing but The coaches and Owner Alex have been beyond kind and so knowledgeable and skilled. I feel so welcome already after 2 days of their on-ramp (beginner) classes. Its a family like community and can't wait to be totally involved and get in great shape!
Fantastic experience: My wife and I Dropped while in Town and this place is Amazing . The coaches/ program is Awesome ! Great warm up and workout experience . Will definitely come back and Highly recommend ! They have SWEET SHIRTS and merchandise .
Fantastic experience: The coaches have been great. Highly recommended box for advanced to beginner. They have been helpful for a lot of our patients.
Fantastic experience: Great workouts and amazing people and community!!
Fantastic experience: Everyone I have met has been so helpful and so encouraging.
Fantastic experience: Great space, great people, great workouts. Every member of the gym is motivated, the Trainers want the best for you, and the box jumps never shy away from bruising your shins.
Fantastic experience: 5:15 class are savages. I drop in form time to time and everyone is always as nice as the first time I went. Coach Alex is knowledge and is always willing to encourage and help out.
Fantastic experience: Love it the trainer is awesome and it's a great environment
Fantastic experience: I was in Aurora for the weekend and the owners, coaches, and members were more than welcoming. It was a fun environment to workout in. I’m fairly new to CrossFit. A couple couches took time during open workouts to share tips and correct my form. This would be where I’d work out if I was a local. I had a great experience.
Fantastic experience: It’s fun and hard
Fantastic experience: Dropped in while in town for a wedding and had such a great experience! Alex was very attentive and knowledgeable, and everyone was very welcoming and kind. Their set up was super cool as well with the outdoor rigs. Thanks again for letting us drop in! We’ll definitely be back!
Fantastic experience: First time CrossFitter right here! And this gym welcomed me with open arms. XS has been my second home over the the past couple of months and although, I'm still learning all the movements, the coaches and community are always there to help me grow. I've never experienced this quick of results with my endurance, strength and confidence. I feel so blessed to apart of this community and heavily encourage people to join regardless of CrossFit experience.
Fantastic experience: Positive: Professionalism , Quality The community at this gym is second to none! I've been coming for about a year and a half and the friendly environment amongst the members and staff is the reason I keep coming back!
Fantastic experience: My husband & I have been members here for over a year now. If you are looking for a fitness lifestyle that encourages you to do things you had no idea you were capable of, supports you when you “almost got it,” & motivates you to continue coming back for more, this community is just what you have been looking for. The coaches are fantastic & have the ability to break things down as simple as a pull up. The members treat each other like family, & throughout the year there are events & challenges that help keep you accountable. Give this place a shot!
Fantastic experience: Its such a motivating gym with great workouts, great coaches and great people.
Fantastic experience: I thought going in here, it just be full of people who are already fit just tryin ta get more fit. While you will definitely run into those people, you will also find every type of level all working on the same thing at their own pace. The coaches are very attentive and knowledgeable. And they listen to your level of commitment. They push you if you ask to be pushed, they keep you safe if you are simply pleased that you showed up;) It’s a great, supportive community to help you reach your health goals.
Fantastic experience: I walked into XS CrossFit 15 months ago in search of 1) a group of people to work out with since I was new to Colorado, 2) something new to challenge me, and 3) a family-friendly environment since I still had small children at home. I found all 3 of these things and so much more! You will hear over and over that XS is more than just a gym, it's a community. The amazing leadership from the gym owner, Alex, filters through all of the coaches at XS. You will find knowledgeable and encouraging coaches who care about you as an individual, as well as your athletic progress. I considered myself fairly fit when I arrived, but my lifts have improved by leaps and bounds, my cardio has improved, and I have pushed myself harder than I ever have before, giving myself a whole new level of confidence (and humility since there is ALWAYS something to improve on). XS CrossFit has varying levels of athletes, all the way from individuals just getting into fitness, competitive CrossFitters, and everything in between. For you mommas out there...the 9:30 class has CHILDCARE!
Fantastic experience: Positive: Communication , Professionalism , Quality I love coming to XS CrossFit every day. The coaches are extremely knowledgeable, motivating and willing to help you with any questions. The atmosphere created by the all the members is extremely welcoming and encouraging, I have been going here since August 2020 and never once have I felt judged.
Fantastic experience: Positive: Communication , Professionalism , Quality 5 STARS ALL AROUND! The athletes are amazing, fun, friendly, and encouraging. The coaches are professional and motivating. Good variety among the WODs, so I'm never bored and always working on something new. Most importantly, I FEEL GREAT and look forward to my workout every day. I love this box!
Fantastic experience: Best gym I’ve ever been to, friendly community. Fantastic coaches. Amazing outdoor rig and outdoor running track. Fun and varied workouts with hotly contested competition
Fantastic experience: First class people, excellent gym.
Fantastic experience: Love this place. Such a great atmosphere and friendly place to be. Great coaches that are all certified, knowledgeable, and have been in the health and fitness field for a long time.
Fantastic experience: I joined XS CrossFit a little over 4 months ago. CrossFit seemed a bit overwhelming and intimidating to me when I first started, but the coaches and members at this box have been so incredibly supportive and encouraging. I am really glad I started Crossfit and am totally hooked now. The programming and coaching at XS has really helped me achieve some results that have far exceeded my expectations.
Fantastic experience: I started going to XS CrossFit as both a new Colorado resident and a person getting back into the gym after a solid year off, and my experience here the past four months has been wonderful! The community is so welcoming! the coaches are knowledgeable and skilled in pushing you, but not further than your limit. This gym is willing to meet you where you’re at, whatever your skill level, and then shows up to support you as you grow and work toward your goals. Highly recommend it!
Fantastic experience: Great social group of people. Facilities are great too. The trainers are good and very engaged. The owner is very professional and personable. There's a wide variety of ages and ability levels. It's located on private land in a purpose built metal building.
Fantastic experience: The last post I had about XS Crossfit was 4 years ago. I have been with the box for a little over 5 years. In that time, I have seen more and more members, more classes offered, a second building added, and more friendships. We have a diverse age group that comes to the gym and many class times to choose from. Our coaches have helped my achieve my fitness goals year in and year out. Whether it is offering weekend courses to get ready for the open to the year long Fit Challenge that works on specific skills, XS Crossfit has it all. And the 400m dirt track is a bonus! Definitely worth checking it out.
Fantastic experience: I love the flexibility that XS offers with their schedule. There are a ton of class times so I can always find one that works. I also really enjoy the barbell class on the weekends. I've been to other gyms that might offer barbell on one week night and that makes it hard for a lot of people to get to - it's really a great compliment to the normal schedule! This is a very welcoming gym with a great coaching staff!
Fantastic experience: Great Gym, Awesome Coaches!
Fantastic experience: Absolute amazing facility with a flexible class schedule. I "shopped" around for quite some time to find the right gym to fit my CrossFit needs. They offer regular CrossFit classes, Teen, Kids, Mobility, and Oly classes. Best price you'll find in the metro area. I am blown away by all the members and coaches. Highly recommend dropping in sometime!
Fantastic experience: Awesome work at XS CrossFit with Alex and Sarah! Awesome gym with competitors training you! Alex the owner has a big background in cross fit scratching back to 2005 in San Jose CA. Great facility and trainers! I love it. I drop into a lot of boxes and this one will push you! This is now my home box and I couldn't be happier, amazing family atmosphere and wonderful people! They are getting me to places I never thought I could in crossfit.
Fantastic experience: I had no idea what I was doing when I first went to join XS crossfit. I quickly learned that this place is so much more then a gym. It's a family where everyone is pursuing their fitness goals. Everyone pushes each other to do they're best and the coaching is definetly top notch. Good luck finding any better gym In the Parker area
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