Josh, Joyce & Jackie, Aiden & Cam: I just want to say thank you for everything you've built at Fortem CrossFit. The energy inside those walls is different -- it's positive, uplifting, and contagious. You've created more than just a gym; you've built a community where people are encouraged to push past limits, support one another, and grow into the best version of themselves. Your leadership sets the tone. The culture of accountability, encouragement, and resilience doesn't happen by accident -- it starts with you. Because of that, Fortem isn't just a place to train; it's a place where confidence is built, friendships are formed, and character is strengthened. Thank you for investing in people, for believing in growth, and for creating an environment where hard work and positivity go hand in hand. It truly makes a difference. read more

This gym is amazing! They have extremely dedicated and very knowledgeable coaches. They always make you feel welcomed and know how to individualize (scale) a workout based on your fitness level. In my opinion what makes this gym stand out is the coaching they offer. Coaches are fully engaged (not on their phones) during the workouts so you are constantly getting feedback and encouragement. Was there for a year until I moved out of the area but I miss it very much, especially my coaches Aiden and Joyce. The head coach and owner Josh, always makes it a point to greet everyone when he is in the gym. Loved being part of the Fortem community! read more

Training at Crossfit Fortem has transformed my life in so many positive ways. I started CrossFit 8 years ago, not exactly sure what I was getting myself into. It was so challenging for me; I remember crying after workouts because it was so mentally exhausting. I almost quit after a few months, but the community and encouragement kept me coming back, day after day. Aside from the increased strength and mobility, maintaining this routine has built mental resilience and grit. I would argue that this may be more important to me than the physical strength I have gained. Crossfit has taught me to stay calm in discomfort, how to break big challenges into manageable pieces, and to show up and do what I know is best, despite my emotions or motivation. After continuing CrossFit through my last two pregnancies, I learned to appreciate the ability to scale any movement. To meet you where you're at, proving that CrossFit can be for anyone. It's no wonder 7 of my 8 kids have done CrossFit at some point, with 5 of them currently training at Fortem. I'm so grateful that through the kids classes, they get to experience the Fortem community at such a young age! We all know how amazing the community of members and coaches are! I truly believe we have the most knowledgeable, welcoming, and wholesome gym environment. I am looking forward to continuing my Crossfit journey at Fortem for many years to come! read more

Love this place so so much, all the coaches are patient and willing to work around your abilities and any issues that may come up. I've been going here since June 2023 and I've improved and gotten so much stronger. I've also recently done their nutrition program and have gotten great results, if you're looking for for THE CrossFit gym in the area, this is the place to be read more

Amazing staff and community. If you want real fitness results that will last go here.

I've been to my share of CrossFit gyms but I always love dropping into Fortem! Josh always remembers my name and even though I'm not a member he still treats me like I've been going for years. If your thinking of CrossFit then this is the place to be or drop in. Great vibes, great community read more

I can't give a high enough rating for this gym! Jackie and Josh are incredible! They have created an open and friendly workout environment who welcomes all different types of athletes, all ages and fitness levels! If you are reading this review looking for a CrossFit gym- look NO FURTHER!! Please go check this gym out, it's not just a gym it's a community of incredible members who make working out fun! This gym will change your life! read more

Battle of the Boxes was held here this weekend. (woo crossfit chino hills, shameless plug i know. Cf Kinnick is situated in a residential neighborhood in Upland. There isn't any better motivation to get fit than waking up to go to work after having eaten a sugar-laden breakfast and seeing a bunch of fit (see also ripped; see also shredded) people walking in and out of this place. Uh huh you know you're guilty of that sugary breakfast. There's a parking lot across the street and sufficient street parking all around. The gym itself is spacious paired with a courtyard (sans grass) for those who want to take their workouts outside. The pull up rigs can adequately cover a large glass too. The athletes who train at this box are getting some legit training cause they did relatively well especially in the lifting workout. Beasts I tell you!! Summer's around the corner, come down to Crossfit Kinnick and get your sexy on. read more

This place is great. I only started in June but I feel like I've learned so much already. Everyone that goes here is so nice and the trainers are amazing! They pay close attention to your form, which I love since I'm not trying to hurt myself. read more

Love how they welcome people of all fitness levels and body types! Jeremy is the best! He is like a supportive big brother to me!

Team atmosphere, great coaches and world renowned members. If you are tired of going to a standard, meat market gym where you don't know anyone and are looking for elite fitness, then CrossFit Kinnick is where you should be. I have been a member for a couple years and have seen tremendous gains in my performance and huge loses in total weight, body fat and pant sizes. The gym is more like a family where get-togethers are common place and elite athletes are there to push you to your true abilities. I grew up in the gym when is was 14 going to Family Fitness (now 24 hour) and I wish they had CrossFit back then. Even my 13 & 7 year old have classes they attend to keep them on the path of a healthy lifestyle. Stop by today to see your future as part of the CrossFit Kinnick Family. read more

Crossfit Fortem - World renowned CrossFit Gym in Upland, CA. - Interval Training Gyms Near Me - Upland, California

Great gym for people of all fitness levels. Sign up for a free introductory class to get an idea of what you will experience during a workout! Everyone is knowledgeable and friendly. The support you receive is amazing and there is a family atmosphere! read more

Anyone that's been here knows that this place is more than a gym- it's a community. The workouts are taught by experts who have gone to the games. Each class is directed by an instructor and scaled or modified according to individual needs while still participating in the class workout. This gym ranges from all ages from a kids class to some "older" people (no offense) but it just a goes to show the range of who can do this and the class is tailored to the individual. The instructors are very good at this. Classes are always full of laughs, competition, and fun. Worth your time to check it out and it give it a shot. read more

Love this place! The 6am class rocks.. Gotta love the push, and spreading the #Kinnickbutter Battle of the Boxes-Awesome read more

I was very interested in this gym since I had a couple friends recommend it, but it took two weeks to finally get a consult. The lack of communication was very frustrating, but I stuck with it to finally get a time. After the consult It seemed like they are money hungry because they expect a seasoned, athletic person with 30 years experience to pay for 3-5 beginner/basic classes at 100/class. It's not the money, but it felt like a scam to make money. I understand that many people are inexperienced, but let someone experienced, sign a waiver and try out a class. They admit this is not required in other gyms so I will check out one of the many others around. I called the Rancho CrossFit and they have a much better business model with 6 FREE basic classes and $150/mo unlimited and just as good of yelp reviews. read more

This is the best gym I've been to. Every penny I spend here is worth the money. They've got top tier coaches, well stocked with equipment, and the best thing us the community they foster there. read more

I am proud to say I'm a crossfitter, even more so about the coaching, and strength building I have recieve at Kinnick crossfit of Upland! I've put my time in at many other places, with minimal results. Here at Kinnick for the short timed workouts, I can't believe the changes in my body shape and the complements I get for my Age 52! read more

Great crossfit gym everyone is friendly and helpful. Very active environment . Great for every skill level.

Never took working out seriously until I discovered the sport of CrossFit. The trainers at CrossFit Kinnick are extremely knowledgeable and they genuinely care about you. The feeling of accomplishment you have after you just completed the hardest workout you've ever done is like nothing else, and the support they give you just keeps you sooo motivated! I look and feel so much better after just a few short months, and I've gotten countless compliments from friends and family about the difference they've seen in me. Love CFK, get your free class in and see what this amazing community is all about! read more

Awesome coaches, awesome gym members! Everyone is super friendly makes you feel comfortable and push you to get better. I highly recommend anyone interested in crossfit to check out Kinnick! read more

Not only was this an amazing workout and an awesome community of athletes who care and support each other. I emailed to do a drop in and the owner Jeremy not only welcomed me but also hopped on twitter and found me and followed me! This was an amazing experience! read more

Great place for crossfitters of all levels. The trainers as well as the members all are wonderful! They do a great job!

CFK (Crossfit Kinnick) helped me break out of the tired old 'routine' at the gym. I wasn't seeing much progress until I joined CFK, then BAM, I'm back in action and surrounded, literally surround, by staff and other members who are inspiring and genuinely want each other to succeed. The quality of instruction is seen in the results. With members breaking personal records on movements and workouts regularly, anyone can see these instructors really know how to train. Come to CFK but and make sure to bring the fam and friends. read more

You definantly get your moneys worth! The trainers are great and work with you every step of the way. They give great nutrition guidance as well. Great atmosphere! And the "ramp" series is great for anyone who is intimidated by joining. read more

Is there an option to give zero stars? Cause I would. They are registered as a weightlifting club but they don't even have a class. When you email to ask about their weightlifting program they don't have have the courtesy to tell you that. I even tried calling and no answer. Last I went there, thinking maybe they are crazy busy right now. Nope not busy just lazy and rude. The chick that finally came to talk to me didn't even know her terminology well in either crossfit or OLY. The male coach at the time couldn't even take 30 seconds to tell me they stopped doing OLY & didn't have the decency to update the website, he had her be the go between. Maybe I've only experienced amazing crossfit boxes or I've been spoiled by wonderful owners but this place doesn't deserve the crossfit name. NEVER TRY THEM. In fact, turn around and go to Crossfit Foothill or Crossfit Lifted, great & classy owners. read more

This place is a joke! Starting with the hypocritical, over zealous "leader" Jeremy! He claims this is a box family however there is no inclusion... only when it comes to benefiting him financially. For example his challenges are ridiculously overpriced. The WODs are boring and repetitive. The competitor classes on the weekends are by invitation only never inviting dedicated members but only those within his clique. For someone that preaches the word of the Lord, he's a rude and condescending. He's not a coach but a self absorbed athlete , looking to only advance himself.. Run as fast as you can, for time, from this place and never come back!! read more

Crossfit Kinnick is such an AWESOME gym and family to be part of. The coaches are so passionate about what they do, always striving to better the members, and their dedication is reflected in their members achievements. The members are very friendly, supportive, and help motivate you to do your best. Being part of this gym has definitely changed my life and I am so thankful to all the coaches and members that inspire me everytime I come to workout. You will achieve things you never thought possible especially here at Crossfit Kinnick!!! read more

Crossfit Kinnick has the most positive trainers around. The head trainer, Jeremy Kinnick, is not only an excellent coach and motivator, but also extremely funny and kind. The people who work out at the gym are welcoming to newcomers and the gym caters to all fitness levels. Each workout of the day can be modified according to your needs and the coaches recommendations. I'm thankful every day that I belong to the Crossfit Kinnick community. Joining this gym has been a positive life changing experience for me. Come in and check it out for yourself. I LOVE THIS GYM!!! If there was an option to give it 10 STARS I would!!! read more

Dropped in for their 6:30pm class last night from out of town, and was really impressed with the coach, the facility, and the welcoming and supportive athletes. The coach was really positive and provided some really great tips on how to improve my form to be more efficient. The facility was large and clean-loved the photo collages in the waiting area, nice touch! Definitely a strong sense of team and celebration of achievement shines through here. The other athletes, as well as the coach remembered my name and cheered me and one another on. I am glad that I decided to drop in here-I was in very good hands here. Highly recommend it! read more

This is different then any other gym I' ve have ever been to. The trainers are very knowledgeable about every aspect of fitness. Crossfit Kinnick is very much like a family, everyone is friendly and very motivating. I've been going for 6 months and have great results. I am excited to show up everyday and can't wait to see where I am in 6 months. read more

One of my favorite places on the planet. Has changed my life. Fitter, stronger, thinner, healthier, faster, happier. Seriously. Get in there, give it a try, read more

no oly class that is stated on website. holes in the walls. coaching was not special at all. expensive and wanted to charge me for personal training instead of giving me the free first class. read more

The education, training and support I receive from the coaches and trainers at Crossfit Kinnick are amazing. All the members are family and the encouragement I get from everyone before, during and after my workouts is what helps me go back to do it again -- with more weight, more reps, faster time, rips, pain and soreness. I know I'm stronger, not only physically, but mentally, because I've learned that I can do what I never thought I could at my age. And I can do it unbroken, I can do it prescribed, and I can PR just like everyone else at Crossfit Kinnick. read more

Just called in to ask some questions was expectiing the person to blow me off like most places do when you call, this lady i belive her name was Julian was really nice didnt try to sell to me over te phone but answered all my questions and set me up a appt really looking foward to checking this place out read more