The Underground Lab

Information about The Underground Lab
66046, Lawrence
Opening hours
- Monday: 6:00 AM – 8:00 PM
- Tuesday: 6:00 AM – 8:00 PM
- Wednesday: 6:00 AM – 8:00 PM
- Thursday: 6:00 AM – 8:00 PM
- Friday: 6:00 AM – 8:00 PM
- Saturday: 7:00 AM – 12:00 PM
- Sunday: Closed
The Underground Lab: Opinions

Fantastic experience: Best place to work out. The trainers are knowledgeable, enthusiastic, encouraging and fun. I've been working out at UGL since they opened (before actually) and I wouldn't dream of leaving this gym. The atmosphere and philosophy is unique. Once you start, you won't be able to stop. They're THAT good!
Fantastic experience: LOVE! The trainers are great, the members are great, the environment is great! It's like a big family where everyone encourages one another regardless of fitness level. No judgement at the lab. I have never felt more comfortable at a gym in my life!
Fantastic experience: Melissa and Michael are great trainers- they both ran well-structured, interesting and HARD classes. I left sweaty and sore, but that's the point. I was visiting from out of town, and prior to my trip, I inquired about training at UGL, and my emails were responded to very quickly, and they didn't charge me for the week I trained there. Everything about the space and trainers is great. Highly recommend!
Fantastic experience: The UGL is so much more than just a gym, it will change your life. What's great is it's not just a physical transformation, every time I leave the UGL I feel 10 times better. The trainers are all knowledgeable, offer modifications, and care about everyone in the class. Love this place, the trainers, and the members, I know it doesn't get any better.
Fantastic experience: The UGL is an amazing place. My favorite part is how it is not at all intimidating, regardless of your fitness level. Everyone there is incredibly encouraging. It's more than a gym, it's my fitness family!
Fantastic experience: I have been a part of UGL for almost 5 years and can honestly say there is nothing else like it out there. Whether you like working out with a large group, small group or one on one, they have a program to meet your needs. Also they are big enough to be able offer state of the art equipment and training but not so big that you get lost in the crowd. If you are looking for a gym where you can fit it in regardless of your age, shape or fitness level, UGL is the place for you.
Fantastic experience: I love the UGL, I love the fitness modules, I think the work outs never get old, I can tell you that those trainers of UGL care about you, I love how interesting all the workouts are, I am working harder than I ever have before, I fell great I go so I can get energy for my day. is a great place and you make friends at same time. I can't speak highly enough of this place. I always look forward to what work out is going to be. Love it, love it, love it.
Fantastic experience: I have been a member of the UGL family for two months and its the most consistent I have ever worked out. The trainers are great and are really good at providing modifications to the workouts if needed. I show up, get my workout in and have a great time doing it!
Fantastic experience: All of the workouts are always fun and different everyday, I never get bored with the variety of workouts. They keep it fresh and always keep you and your body guessing. The staff is ALWAYS encouraging and welcoming. It's a great environment to go workout in no matter what your level of experience!
Fantastic experience: I adore this gym. I love working with Melissa, I love the fitness modules, I love how interesting all the workouts are, I love that I'm working harder than I ever have before, I love that I feel almost how I used to feel before my c-section. I can't speak highly enough of this place. I always look forward to what workout I'm doing next and am so happy to get there (which, at 5:45 and 6 am, says a lot).
Fantastic experience: UGL is without a doubt the best gym I've ever visited. I've only been a member for approximately 2 1/2 months, but I've already noticed a significant difference in my body, mind, and motivation. I'm stronger, fitter, and feel better in general! Workouts are something I constantly look forward to. The trainers are competent and experienced, and they can adapt workouts to suit any ability level. They assist you focus on your objectives and provide you the skills you need to keep moving forward! I can't say enough good things about this gym. It's more than simply a gym; it's like having a second family!
Fantastic experience: Love this gym!!!! Emma does a wonderful job of training and marketing. Will recommend to others in the area.
Fantastic experience: This gym has ruined all other gyms for me. Two years ago, I was done. I was done with commercial gyms and the way I always felt watched while working out, and the lack of results I was getting, and the fact that they didn’t care about me as an athlete. As someone who grew up playing and loving sports, I craved a team. A team that supported me and pushed me. I craved a coach that wouldn’t coddle me and tell me how beautiful I was, but yell and curse at me when they knew I could do more and give more. I craved that thrill only smashing goals and winning with could give me. I pulled up to The Underground Lab and thought to myself, “This looks sketchy.” However, I walked in and I fell in love. I still get butterflies every time I walk in. The dark mats, the dimmed lights, the thumping bass of the music. Let me tell you nothing gets me more pumped to lift heavier or run faster than bass. Now it’s been two years and this is not my gym. This is my family. My body has transformed. I have lost weight and built muscle. I am lighter than I was in high school and I have never lifted as much as what I lift now. But that’s not all this gym has done for me. This gym has given me mental endurance. I have gained a mental toughness that has helped me survive as an ER nurse through a pandemic. When I’m covered in PPE, sweating out of every pore, doing all I can to save someone’s life, while I know I have three other patients who are waiting on me, I think to myself, “If I can survive 5 minutes of burpees, 500 meters on the rower, and assault bike intervals, then I can do this.” I can do anything because of what this gym has given me. Here’s what I tell everyone who asks me about my workouts and this gym. Nothing prepares you for it. You can do all the lifting in the world and you will still be incredibly sore the next day. You could do all the running in the world and the workouts are still gonna kick your butt and your lungs will feel as if they are on fire. You will struggle, because everyone struggles. You will be pushed. They will take your dumbbells from you and give you heavier ones when they know you can do more. They will increase your speed on the treadmill when they know you can go faster. They will add another set if you’re not giving your all. But these people beside you will scream for you. They will finish with you. They may be just as dead as you are but they will get up, stand right next to you, scream your name, and when you complete your last rep, they will be your biggest fans. And you will do the same for them. So be that new kid. Be that person who starts a new year with new resolutions. Be that person who try’s and fails and then try’s again. Because I was that person. I am still that person. Now I have a team and a coach and a family. Become an Undergrounder. You won’t regret it.
Fantastic experience: UGL is hands down the best gym I’ve ever experienced. I’ve been a member for about 2 1/2 months and already I’ve seen such a huge change in my body, mind and motivation. I feel stronger, fitter and better overall! I always look forward to work outs. The trainers are knowledgeable, experienced and can tailor the workouts to any skill level. They hone in on your goals and help give you the tools to continue making progress! I feel lucky to have met the folks at UGL (trainers and members) and am so glad they are helping me strive for a better and healthier lifestyle. Everyone is so genuine and they truly do want to see you succeed. I can’t recommend this gym enough. It’s not just a gym, it’s a second family!
Fantastic experience: I have trained at The Underground Lab since the first day it opened nearly 10 years ago! One of the OG’s of the Lab! It never gets old! You’ll never do the same workout twice! Hands down it has the most knowledgeable, professional and fun trainers in LFK!!! In fact the past 2 years in a row The Lab has had the 1st & 2nd place trainer titles in the best of Lawrence!!! I cannot express enough gratitude to the fitness family I have found here. It’s more than just a training facility, it’s my second home full of family! The culture here is like no other I have ever experienced! You will be pushed passed limits you’ve only set on yourself! The Underground Lab has made me a better human, wife, mother and friend! It’s a place where you can be yourself with no judgement only encouragement! If you haven’t been to The Underground Lab, you are truly missing out ✌
Fantastic experience: I am a founding member of UGL! They have the best trainers! Great workouts for all levels. Doesn’t compare to anywhere else! Love them! ❤️❤️ Come join us!
Fantastic experience: I was a first-time gym-goer and was way out of my comfort zone. UGL has been amazing! Everyone there wants you to succeed. And for me, working towards success meant getting vulnerable. The coaches at UGL continue to make that process easier with their support, push, and encouragement.
Fantastic experience: Positive: Communication , Professionalism , Quality Great place to be !!!! Trainers are amazing, always looking after you making sure that you doing things right and not get hurt and the same time pushing you to be better. Excellent family environment, and must of all you don't feel like you are going to a gym, because is community where you always feel welcome.
Fantastic experience: I’ve been attending the Underground Lab for about 3 1/2 months now and they are hands down the best gym I’ve ever attended. The staff are extremely knowledgeable on what it takes to get you to where you want to be within your abilities at that time and how to progress you past that point. All of the staff and members genuinely care about you, your goals, and helping you progress past those goals. They’ve helped me shed 30 Lbs. and build up my overall strength immensely in such a short amount of time. I look forward to continuing my journey with all the trainers and members that I not only consider friends but my second family. I strongly recommend anyone to attend and put in the effort to allow the #uglfitfam to help change your life.
Fantastic experience: The Underground Lab is way more than a gym. I have been a member for almost 3 years now and could not imagine life without the lab. The trainers are seriously the best - Best Trainers in Lawrence 2 years in a row!!! Out of all the gyms I have been to, there isn't a place more accepting, encouraging, and truly judgement free than the UGL.
Fantastic experience: Do you remember the theme song to the sitcom "Cheers"? Well, the Underground Lab is the "Cheers" of fitness facilities. It's not like any other gym - there is a deep sense of comradery and support that feels like home. The training at The Underground Lab is THE BEST! The facility is always immaculately clean (with sanitizer bottles at every station), the fitness modules are targeted, challenging & diverse (there is not a muscle that you wont work! and you will NEVER get bored - oh! and completely scalable to every level), flexibility is always infull consideration (with virtual classes, small in-person modules, and open access options), and the coaches are the "cream of the crop" (knowledgeable, talented athletes who also happen to be pretty funny - there is nothing like a good laugh to make you feel like you can add another plate to that bar!).
Fantastic experience: Underground Lab is fantastic. The virtual (zoom) "hybrid" classes let me continue to exercise throughout the lockdown, which I really appreciated. I also really like the functional range conditioning and yoga classes. Great, positive, supportive community.
Fantastic experience: I love this gym! Everyone is welcoming and helpful if I need help with anything. The have a lot of knowledge and accommodate me with workout modifications for aches and pains I have from former injuries. It feels like everyone is part of a family there. They create fun and dynamic workouts.
Fantastic experience: Positive: Communication , Professionalism , Quality The Underground Lab is a fantastic fitness gym. My fitness family and staff are fantastic. The lab is a second home to me! This is a place where I can devote an hour + to myself mentally and physically. I would recommend this place to anyone and everyone.
Fantastic experience: I have been a member for about 9 years and have always enjoyed each day i go, even if it's torture. Everyone pushes & encourages one another during those tough workouts & youhave fun. When days are rough ugl is definitely my safe haven to get away from the stress & craziness of work/life. Couldn't imagine going anywhere else.
Fantastic experience: I've been a long time member of the UGL (6 years) and I really appreciate the evolution. Things are always evolving and I've never done the same workout twice. The trainers are all excellent, the facility is clean and the community is very family oriented and amazing! #ugl nation for life! ..... It's been about 10 years now that I've been at UGL, since they've opened, and I can't say enough how appreciative I am to have this in my life. The coaches are incredibly knowledgeable, and inspirational on top of being fun and helpful with everything fitness related and beyond! And the people I've met over the years, built lifelong friendships with, watch grow and become more, is truly unique and special! There is no replacement for that. I look forward to my time with UGL everyday! #UGL for life!
Fantastic experience: The Underground Lab is welcoming to people of all fitness levels and ages. The atmosphere is inviting and energetic, the trainers are friendly and knowledgeable, and the other Undergrounders are like family.
Fantastic experience: In January it will be a year that I have been working out at the Lab and I am incredibly thankful!! I have not only gained strength and muscle, but most of all I have gained self worth and confidence in myself and many friendships! I have been pushed and motivated to knock down the limitations I put on myself, and shown that I am capable of a lot more than I ever imagined. The Underground Lab is a place where you will find your weaknesses, but you build them into your strengths! The trainers are amazing and the knowledge they possess is incredible. It doesn’t matter what your goals are or where you are at in your fitness journey, The Underground Lab will get you there, all the while making you feel welcomed and valued!!!
Fantastic experience: I’m new working out here at the lab. I’ve been going several times a week for a month now and have not done the same fitness class. I love the variety of the strength training and the cardio. Everyone at the lab is very nice and compliments you. The coaches and staff are fantastic. They modify moves if needed and make sure you are lifting correctly. I like the structure of how the classes are conducted.
Fantastic experience: I have been going to the underground lab for awhile now, and since I’ve been working out here, I can actually say I enjoy working out! I always used to hate working out, as I always did the same workout and didn’t have variety. At the lab, you’ll never do the same workout routines day after day. Also, the trainers are friendly and fun!
Fantastic experience: I love this gym! Every trainer is experienced and knowledgeable for training people at any fitness level. The workouts are challenging but not intimidating and the support I get from fellow participants and staff is what keeps me coming back for more. This place is the best!
Fantastic experience: I am thankful everyday that I found Underground Lab. The trainers are amazing and I love all the people I workout with. I leave there feeling refreshed and motivated. I never liked going to a "gym" to workout and was always self conscious at big gyms. It is a different feeling at Underground Lab. I love it!
Fantastic experience: I have loved my time at Underground Lab because the workouts are fun, interesting, and always changing! They emphasize proper form in every exercise, and they have coaches coming around all the time to encourage us and help us get better. If you want to get more involved in the fitness community in a friendly, welcoming, non-intimidating environment, UGL is the place for that in Lawrence!
Fantastic experience: Started at UGL thanks to a random Facebook post I saw on a whim. It was for a beginner boot camp, just to be a kind of intro to Fitness and UGL-style classes. Fernando is a seriously amazing coach; I loved the class and, when he offered another class (Hypertrophy training), I jumped at it. I acquired gains that I didn’t think were possible! If I ever decide to hire a 1:1 personal trainer, Fernando would be it for sure. I never took the SPEFit or any other group classes, but instead just had a studio pass and I enjoyed the gym. Big, PLENTY of equipment, clean. Would absolutely recommend!
Fantastic experience: The Undergound Lab is truly a place I can call my second home. It is an environment filled with tools to help you reach your goals and knowledgeable/supportive people who help you out every step of the way. The atmosphere in this gym is different than any other and I’m blessed to say I workout here!
Fantastic experience: Underground Lab is definitely the best gym I have been to in Lawrence! I love how the trainers consistently mix up workouts and the workouts are always challenging but definitely doable. They have modifications for every level of fitness and it has a positive and encouraging environment every time you walk in the door. I would definitely recommend UGL to anyone looking to see results quickly and for anyone wanting to be motivated to push themselves each workout!
Fantastic experience: The UGL is such a great environment for working out. The instructors are patient, knowledgeable, and inspiring. I look forward to attending their classes and can’t wait to go back!
Fantastic experience: My favorite part of UGL is that the trainers consistently have hard workouts prepared for each class. The classes are the most challenging I’ve done in lawrence!! I’d recommend UGL to others because the trainers are helpful no matter what level of fitness you’re at.
Fantastic experience: A great workout with an exceptional “family” atmosphere. The coaches and members are very welcoming and encouraging. The coaches are highly trained and helpful. Always leave with a great workout and have fun along the way!
Fantastic experience: I recommend UGL because a great place for all fitness levels. The thing that sets them apart is that they are not intimidating and truly take the time to make you feel welcome and confortable with the gym and the workouts. The workouts will push you but safety is a top priority as they are always checking your form. The trainers also know how to make your workouts fun with great music and making games out of the workouts. Think of it as adult recess and you walk away feeling stronger every day. My favorite part is the community as everyone is very supportive of one another.
Fantastic experience: Underground Lab has a very positive vibe and I always feel welcome when I go! That is my favorite part of UGL and why I always enjoy going (even at 5am)!! I would recommend UGL to everyone, no matter your skill level. There are modifications and they cater to everyone's skill set, you will get a great workout. I would definitely recommend UGL to anyone!
Fantastic experience: The UGL is the best gym I have ever attended. When walking in there is just a different vibe that truly is addicting. All staff member are astonishing, always accommodating and willing to work with your needs. Not only is this gym not that expensive but I️t is also in a convenient location for KU students and other Lawrence residents. I️t truly feels like another home and I am always able to focus and enjoy each and every workout. 100% would recommend this gym for anyone and everyone no matter what is needed.
Fantastic experience: I been a member for a long long time and one of the things that I appreciate the most about the underground lab is that they evolve constantly. They are always looking for ways to get better and make our stay a more positive one. The coaches are great. The people there is great and everyone gets along. All I can say is that this studio is filled with positive people that are constantly pushing and cheering each other. Highly recommend it. If you're on the fence don't be, trust me you won't regret it.
Fantastic experience: I love the Underground Lab! This place is full of fun, dedicated individuals who encourage you to reach your goals and have fun at the same time! If you ever have a question about how to do something or improve your performance, the staff is always super helpful. The Underground Lab has great equipment, lots of space, and is very clean. This is the perfect place to come for anyone interested in fitness!
Fantastic experience: Just go look inside and you'll immediately say to yourself what everyone does, "Oh, wow... this is like the nicest gym I've ever seen." The UGL features top-quality equipment, kept in immaculate condition, arranged in a really cool and intelligent way -- allowing you to experience unique and efficient workouts that you simply CANNOT get at other fitness facilities. The training staff is going to have you doing stuff you've never done before... every... single... time. This was crucial for me, because as soon as I start to get bored with fitness, I fall off the wagon. There's a strong sense of belonging at the Lab and I think it's because they really don't want to sell you a membership -- they want to sell you results. Truly, The Underground Lab is one of Lawrence's best kept secrets. Highly recommend.
Fantastic experience: What a great place to work out! You can work out with their trainers, take a group class with a trainer (which are great and have you doing exercises you've never thought of or seen before but which are very effective), or work out on your own. I do a mixture of group classes and my own workouts depending on the day. Everybody is great to each other and I've never heard a derogatory comment even in private conversation. It's truly a judge-free zone. You will definitely create some "gym buddies" that you see and work out with often and who keep you motivated. I love their benchmarks every 3 months because it allows you to max out on exercises and see your progression. They also offer special side classes every once in a while to fit a specific niche you might be interested in, such as olympic lifting, strength, endurance, fitting into that little black dress (for the ladies), etc. I've tried almost every other gym in Lawrence but I've been at UGL for almost 3 years because of the wide variety of workouts and great atmosphere. Their trainers are top-notch also!
Fantastic experience: The Underground Lab is just absolutely amazing! The very first time I went there was in 2012 when I got a Groupon and the set up was completely different from any other gym I'd been to. I loved the small sized "classes" that you get with a trainer. Fast Forward and I go back to use the one week free pass and can't believe how awesome they still are. Everyone was beyond friendly and helpful. You may have 5 people or 15 people in your fitness module and the trainer still finds time to chat with you, learn about you and help you get the most out of the session. Not only are you getting an amazing workout, you are having fun! It is a little more a month than most conventional gyms but that is because you are getting way more than some equipment and hoping you don't look stupid when you have to figure out how to use it. I just got a membership for UGL and I can not WAIT to start working out full time and achieving my fitness goals once again!
Fantastic experience: UGL is simply the best place to get fit! The team is passionate about making you a better person mentally and physically. I am truly blessed my beautiful wife introduced me to The Lab a few years ago. UGL is like family! Thank you for all you do!
Fantastic experience: The Underground Lab is the only place that I will suggest to anyone who wants to feel good about themselves, get strong, lose weight, or has any kind of fitness goal. This family of coaches is 100% ready to help you get there! Fernando is a down to earth coach who will lead on a path to the best You!
Fantastic experience: This place has it figured out. Great coaches and owners and managers and nutritionist! It's not only a great work out but it's a well run business. As a fellow business owner, I very much appreciate this! Classes and movements are constantly varied and achievable by all levels of fitness. So happy to have found this place!
Fantastic experience: UGL is the absolute best place to workout in Lawrence! I love the atmosphere and the attitude of both the members and the coaches. I've been working with Melissa for a few years and she is competent, compassionate and fun. There's something for everyone at UGL and you can always find a new challenge to take on.
Fantastic experience: I've never been an athlete or super in shape really, and have tried other gyms in the past. Lots of treadmills. Lots of clunking around without much understanding. Then I moved to Lawrence from out of state, decided to try UGL even though it wasn't like anything I was familiar with, and pretty out of my comfort zone. I love it. I love it as someone who entered into this with no real fitness experience. Seriously. I had chicken wing strength in my arms. If there is a level 0, that's what I started at. I am so glad I joined. I work with Melissa and she's the best trainer I've ever had. She pushes me really hard but also reminds me that I'm capable. I get excited seeing normal people doing awesome stuff (aka folks lifting big and pushing through hard workouts) and knowing I'm building up to that too. The environment is great. I've been going for a few months now and am so glad I joined. If you are on the fence I definitely recommend it!
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