Fitness Underground

Fantastic experience: I found Fitness Underground through its Yelp reviews a few years ago. I was looking for an alternative to CrossFit and wanted to focus on gaining strength, so a powerlifting gym seemed like a good fit. I found this gym and have never looked back. The gym is always super clean and has a wide variety of equipment that can suit anyone's needs. I was worried about working out by myself because of intimidation, especially since I am in my mid-40s and was going to be around a lot of younger folks. But seriously, no one cares. Everyone is there to get better and help each other out. No egos. I've been doing personal training with Ian and continue to see my max lift numbers go up, which is exactly what I want. If you are looking for someplace new, grab a day pass and check this place out!

Fantastic experience: Great vibe, forward thinking owners, clean gym open 24 hours a day. Personal training has changed my life for the better! If you want positive personal growth and results, go to the professionals. I have lost 21" of fat, I'm the strongest and most confident that I've ever been, and I look amazing for 61 years young. Thank you Marisa! You are the best trainer ever!!

Fantastic experience: I have been personal training with Marisa for a while and I have to say it’s been the best experience ever! She motivates you, she supports you, she even provides you food menu for your journey to get successful results. She customizes your workouts based on your personal fitness level and goals. I have seen great results with her!!!!! The gym is super clean and well kept!

Fantastic experience: I have been a member of Fitness Underground since June 2022. I can without a doubt say that this is the best gym I have been a part of thus far. I have been in multiple commercial gyms over the years and built a small home gym during the pandemic. My fitness journey has been up and down but became consistent during the pandemic and I started to reach my goals. However, I injured myself and started to stagnate in my physique and strength goals. Despite buying multiple training programs I improved slightly at best and not at all in most areas. I needed personal training. I looked around the area and spoke with multiple gyms and trainers. In the end, I chose Fitness Underground. This place provided me with more than I needed. The owner, Ian, show me around the gym, told me about his experience within the field, and worked with me to come up with clear goals and how I can achieve them. He was kind, and informative, and answered all my questions and concerns, especially when it came to my previous injury. He was direct and upfront about the pricing and offered competitive prices when it came to personal training. He did not pressure me into coming to the gym in any way and allowed me to think about my choice. He also asked me questions in order to understand me and my experience instead of just trying to sell me personal training like the commercial gyms have done in the past. He didn't guilt trip me. It felt like an actual collaboration. Since joining I have made more progress than I ever have on my own. He created a training program specifically tailored to myself and my goals. He would make adjustments mid-workout based on my performance. My experience with Ian has been nothing but great so far. He helped me push myself and overcome the fear that my previous back injury gave me. He does more than just tell you the workout, he helps you understand why you are doing this specific exercise and makes sure you are doing it correctly and safely. He helped me improve my strength, physique, and on top of that, my confidence. The community within this gym has been more than I ever expected. I am use to the regular commercial experience of people going in and out and nothing more. Fitness underground gave me a community that I did not realize I wanted. People were kind, supportive, and encouraging all around. They remembered who I was and can be seen supporting each other and hyping one another up. Everyone has been welcoming and became something that I looked forward to each time I showed up. I use to love it when the gym was empty, but now I show up when I know people will be there. The gym itself is kept clean, and organized, and provides you with more than enough equipment. There are a multitude of platforms to deadlift, racks to squat/bench, barbells to use, and dumbbells of weights that I cannot lift just yet. Everyone helps keep everything organized and clean. There is more than enough space to work out and nothing feels as though it is crowded. Whether your goal is bodybuilding, powerlifting, or simply just trying to improve yourself. This gym offers more than enough to help you achieve your goals. If you are looking for a gym that allows you to push yourself, has a welcoming, caring, and supportive community, equipment that allows you to test your limits and help reach your goals, or trainers that actually work with you then I can honestly recommend fitness underground.

Fantastic experience: Excellent gym with the best, no nonsense equipment. The gym goers here are strong and inspiring.

Fantastic experience: This gym is awesome! Ian, the owner, is helpful, knowledgeable and willing to lend a hand if you have a question or need guidance. His personal training programs really help you to reach your goals, no matter where you are in your fitness journey. He has done an amazing job of building a supportive community within the gym as well. From the equipment to the people, this place is top notch. If you are looking for a true gym that is dedicated to helping you achieve your fitness goals and are tired of the big box gym environment, this is the place for you! 10/10 would recommend.

Fantastic experience: I have been training at Fitness Underground for about a year and a half. I originally started training with Ian, the owner, to get in shape for my wedding. Ian is not the first trainer I have used but his approach to working out has truly changed my life. The first couple of months were hard, not only because I was not used to working out to that extent, but also because getting up and working out before work is difficult. Still, that hard work changed me, and I do not see myself not having a trainer like Ian ever again. Working out twice a week with Ian truly gave me the best results I have ever had. Now I have a 9-month year old baby and can only train with him once a week. I look forward to that training session every week and any chance I get, I try to squeeze another session in. I drive 30 minutes in the opposite direction to get there every week and I have no regrets. If you are looking for a gym that’s open 24/7, has legit equipment for deadlifts, squats, powerlifting in general, I promise you, Underground Fitness is where you need to be. It is of course clean, well maintained and has healthy food/snacks readily available but what is most important to me is the time, energy, and effort Ian puts into every session. I whole heartedly where the apparel and genuinely see Ian as a friend. Don’t believe me? Come on Thursday mornings so I can prove you wrong.

Fantastic experience: The cleanest and friendliest gym I have ever been to.

Positive experience: This gym has a nice variety of equipment. The members are friendly! During peak times it can get a little crowded.

Fantastic experience: Very inviting place, the people that train there are very welcoming and it's not intimidating at all to train there no matter what your strength level is. They have power bars, a set of kilos, and even a belt squat; all you need to get stronger.

Fantastic experience: Owners are great Atmosphere is great Seems intimidating but it's not Everyone here is friendly, respectful, positive and supportive Cant find a better gym than this

Fantastic experience: I went from Golds gym to this one and the difference is like night and day. Vastly better atmosphere here and the barbells are of much better quality.

Fantastic experience: I joined this gym in early December to start getting stronger and to lose some weight, Ian and Marisa are great! In just the month I've been training my squat has gone up 45lbs and my bench has gone up 35lbs great place if you're looking for a strength training or powerlifting gym. #Underground

Fantastic experience: The long and short of it is, if you're serious about reaching your fitness goals, Fitness Underground is the way to go!! I signed up for my first ever Spartan (this one happened to be a Super), which was on Jan. 27, 2018. Leading up to that date I had been searching for a gym and personal trainer who I can trust and be comfortable with since I had a few nagging sports injuries (right knee and left shoulder). Marisa took her time to ask me questions, assess me, and review my goals. She customized personal training sessions to maximize my strengths and strengthen my weaknesses. In this case my biggest weaknesses were grip strength, core, and lower back. Marisa's technical training made a huge impact and was the difference! So much so that I dominated 23 of the 27 obstacles. Thank you Fitness Underground! Next stop, Spartan Beast, Sprint, and my Trifecta.

Fantastic experience: Not too long after New Years, I was on the traditional “I am going to get in shape this year” kick like everyone else who set new year resolutions. I had seen an ad on Instagram for Fitness Underground and thought, man this could truly be a different experience and it’s so close in proximity! At the time, I was working out a Chuze and didn’t necessarily have any complaints, but lacked the closed-knit atmosphere and lacked the free weights I grew up being used too as a football player. I had signed up, not necessarily seeing the gym itself, but didn’t necessarily have the motivation to get in there. It wasn’t until the owner Ian called me and let me know that he felt bad charging me for another month without me stepping foot in the gym. He ask when I could make it in so I could check out the place and get the feel of the place. Shortly there after our conversation, I was able to meet Ian officially and also go over some of the basics for lifting and testing my strength. It was humbling to see that I wasn’t as strong as I thought, but also reminded me the reason I was here in the first place. Ian offered to build out a personal program for me and has continuously done so for the last 7 months. I can tell you from personal experience, the programming has helped me “check my ego at the door” as Ian would say as well as encouraged me to continually come back and try to dominate another week as it gradually edges you up in “PR’s” or personal records. I can say confidently, I am stronger than I have ever been in my life, I have more confidence than I’ve had in a long time and I truly love my gym. It’s a place where you can be yourself, are encouraged by everyone and where the owners Ian & Marisa believe in their athletes and want them to have the best atmosphere to compete, to better their lives and to have a place to belong. If you are looking for a change up in weight lifting or a place just to get back in shape, definitely give Fitness Underground a look. I personally have enjoyed my experience and transformation. Thanks for all the support F.U. I am forever grateful!

Fantastic experience: Fitness underground is the best gym i have ever been to! I love going to bootcamp, open gym, and personal training with Marisa! They have all the best equipment with a large variety and the best trainers who always want to help!

Fantastic experience: This gym is awesome! I enjoy coming to bootcamps in the morning at 6 am. Marisa is a great trainer, and really cares about you. If you have an injury and let her know. She will help you modify each exercise. Bootcamps are always fun and motivating. We all have such a great time. It really makes working out fun! I like that Marisa incorporates different exercises and she even does kickboxing Wednesday's.

Fantastic experience: Nicest owners! Professional and modern place. You can tell the trainers are all there because they truly love it and thrive off of helping their clients. It’s a great experience, especially comparing to the bigger chain gyms that only care about the money and memberships. Fitness Underground is different and it is so refreshing!

Fantastic experience: Hidden Gem for sure! They have that perfect vibe at Fitness Underground and nothing but hard working people who encourage eachother to get better. If you like strength training or powerlifting this is the best gym in tbe area hands down. Excited to watch the Underground powerlifting team compete in December!

Fantastic experience: I've been living in Upland for practically my whole life and have tried literally every gym but never felt at home. I actually found this place while going to pick up some food at the Meditteranean restaurant nearby and was very excited to get a membership after getting a tour by the owners, who are awesome by the way! I come in and do my thing and everyonce in a while I will do a drop in for group training but am not currently enrolled in the unlmited because I usually prefer training by myself. I highly recommend the open gym membership for anyone who likes to lift weights in a very cool environment! They have all the equipment I need to maintain a strong, functional mind and body. Check it out!

Fantastic experience: Outstanding gym, the owners Ian and Marisa really care about each individual lifters success. They have fully committed to having heir own powerlifting team that will be competing later this year. The gym atmosphere is great, something that will definitely breed greatness of each individual lifter. Best gym this side of the Mississippi

Fantastic experience: Great workout atmosphere. Ian and Marisa are very nice and helpful. This place is unique and great for everyone who wants to reach their fitness goals!