I have been a member since December 2025 and am glad I joined! Workout is fun and not boring as the routine and equipment changes often. Coaches are all very supportive and encouraging. Facility is clean and equipment is well maintained. I look forward to every workout! Everyone is supportive and has such a positive attitude! :) read more

3 weeks into F45 and really enjoying it. It's quick and high intensity. Coupled with good coaches and good music, it's gotten me back motivated to workout. Coach Eddie, Elijah, Nick, Will and Amber have all been positive and motivating. Each pushing me to my limits with regard to safety. If you're on the fence for F45, sign up for the trial. It's going to be a matter of commitment and consistency but if you have those things you'll get the most out of it. read more

After 4 months of being a gym member, I have enough data to write a review. Before joining this gym, I had been doing CrossFit for 7 years but unfortunately, my previous gym didn't make it through the pandemic. For the past 3 years, I had been keeping active with my Peloton and running, but it was time to get back into strength training and team-based workouts. That's when I stumbled upon this studio, and I am happy to say that it has exceeded my expectations. The atmosphere in this gym is motivating, and the coaches are friendly and actually coach movements. I love how the workouts are tailored to meet individual fitness levels. I highly recommend this gym to anyone looking for a positive experience. Despite some negative reviews, I can confidently say that the owners are very much a part of the community, and they genuinely care about their members. They are always open to feedback and take a personal interest in addressing any concerns. Don't rely on reviews based on "what my friend told me", ask actual members. read more

Looking for a HIIT/Circuit workout with a predefined exercise routine that will test your physical and mental limits? All packed in a 'functional 45' minutes? F45 is the answer! The workouts are frequently changing so you (and your muscles) never get bored. Mon/Wed/Fri are cardio days where it'll feel like your heart is going to jump out of your chest and Tues/Thurs are resistance days that engages a plethora of muscle groups where you'll feel a solid burn. Of course, all this is only possible if you have that mental grit to maintain a high intensity and push through the pain. But don't worry, the helpful staff, music, and even the other F45ers will help encourage you along the way. F45 provides the ideal environment to kick start, elevate and maintain your fitness lifestyle. F45 4S Ranch has the most spacious layout among the other F45s Ive been to. They have a spacious front lobby with a desk area, cubbies to place your belongings and an area to stretch/foam roll. The gym floor is roomy as well which provides enough space between exercise stations to avoid getting in the way of your neighbor and/or paired partner. In addition, the entire venue looks, feels, and smells prestine everytime I walk in. The equipment and gym floor are consistently sanitized after every class. As for the staff, they're all very motivating and energetic and will spend the time to help you through the grueling routines. Also, if you're new to exercise and F45 in general and the exercise video/demos (played during the entire class to guide the workout routine for the day) aren't sufficient, they will help guide you through the workouts to ensure you're doing the exercises properly. read more

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This is not the place to come dressed glammed in your favorite outfit and think you are going to stay cute. The trainers are here to make sure you get a good workout where you are dripping with sweat. So if you think sweaty clothes are the bomb, you have hit your mark. You may often end up laughing at yourself... either due to doing something new or not being able to do it at all. The later was me! It goes to show this is a program I should be doing. In fact, maybe you should too! Remember all this happens in 45 minutes. Come break out in a sweat with some sweet music and new friends. Thank you for opening the 4S Ranch aka Del Sur location. read more

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11 months ago I signed up for F45. It was not the first time I have tried a fitness routine, but it was most definitely the first time I stuck with it. Now over 200 classes later it has become a part of my daily life. The Jason and Kara (the owners) are great, and the trainers are incredible. They are super positive, and they take time to work with all fitness levels. I definitely recommend this place! read more

F45 Training 4S Ranch - Interval Training Gyms Near Me - San Diego, California

Great workout, amazing coaches. And you SEE and FEEL the results. Always challenging workouts. And all in 45 mins!! read more

F45 Training 4S Ranch - Interval Training Gyms Near Me - San Diego, California

F45 has been my favorite work out class I have ever joined. I have been doing it for about a year now and they constantly keep it new and exciting. The workouts are always different, so you don't run the risk of getting tired of the same old thing. I was so nervous coming in on my first class, but the coaches and fellow F45 goers at this location welcome you with open arms. Everyone who comes in is there to get a great workout in and have a great time doing it. The coaches are truly amazing as well! They ensure you are comfortable, and performing the exercises correctly. If you need to modify something that's no problem. They work so hard to ensure you're comfortable while also motivating you to push your own limits. The motivation you receive at this location is unmatched! They also have a ton of different time slots so you can easily add in a workout any day of the week. read more

You get what you put into it. 8 week challenges and nutrition guidance every day of the year. They don't advertise so I'd invite you to do a week trial. read more

Jason's wife here :) In this CoVid atmosphere, getting a good workout has been a challenge. Holy cow. This workout, all 3 times I've gone so far, has been amazing. Varied each time towards strength-heavy to cardio-heavy, it is a well-rounded program with fun teachers and strong moves that make it easy to follow yet still feel like my butt got kicked! Loved it. All the teachers are fun, it's a great community, and the place itself is clean and organized. Love it. read more

I'm in my forties and I've been a member of LA fitness for some time now. I used to go there to get my early morning workout in before work. I know that my wife and I weren't getting the best use of the 45 min daily workout in terms of intensity and classes were getting a bit repetitive after a while. We actually stumbled into F45 on the way to picking up a catering order and met coach Chris. Signed up for the 7 day trial and we were members before the week was done. F45 is my investment in my self and my wife. The workouts change daily and you even get a kickboxing day if you like to hit stuff. Coach Chris and Coach Nick are awesome and put just enough push to make it a fun and awesome workout. read more

My all-time favorite workout and it only takes 45 minutes. Every session is different but the incredible coaches always ensure that you know exactly what to do. My body and energy levels have already changed so much and it's only the beginning! The owners are some of the most incredible people and do so much to support the community and other local businesses. Great people! They know every member by name and genuinely look forward to seeing them show up and get better! I love being a member at F45 4S Ranch. It's an amazing group of people and a great lifestyle. I know it's a routine I will stick to because it's manageable and the support keeps me motivated! read more

I came in for their free week trial and ended up signing up. Wouldn't walk away from something good. The workouts are challenging but leave you feeling amazing afterwards. The thing I enjoy most about their HIIT workouts is that you work every muscle and change up your exercises daily. Time flies even though you're sweating the entire time. I highly recommend anyone contemplating signing up at least tries their free week. You won't be disappointed. To top it off, they have an amazing staff! They are always happy to answer all of your fitness questions, provide modifications for people with recovering injuries, and provide feedback to insure you are doing your exercises correctly. Highly recommend! read more

I've been coming to F45 4S since January, this place is amazing!! All of coaches are Amazing! They make you feel welcomed from day one when you start your trial, and continue to make you feel like family every time you walk through the door! read more

Wow. I have been to a few F45s and love the style of classes. HOWEVER, the energy of this studio is unmatched. The owners and coaches make your experience great whether you are a star athlete, just beginning or getting back in the saddle post COVID-19 weight. I have been here for 2 years and let me tell you, I fall in love with it more and more everyday. When the pandemic first hit back in March the owners Kara, Chris and Jason did not miss a beat, they provided ZOOM classes everyday. They even offered a few time slots to accommodate all. Once they got the green light to open outdoors, they did so. Once they were able to open indoors they did everything they could to ensure their members were safe! Constantly cleaning, air purifiers. Aside from providing a safe and clean environment, the classes challenge you in a good way and help you see strength you didn't know you had in yourself. The coaches are super knowledgeable and correct you on form and hand you heavier weight if they know you need the push. They have created not just a gym but a community within 4s/Del Sur, the members are always cheering each other on. They have 45 day challenges that help you kick start a healthier lifestyle. I could literally write a book about this studio and how deeply I care about it. If you are reading this and have not tried out F45, they offer a free week and I guarantee you will be hooked!! Come join the F45 family! read more

I can't believe I just finished my 100th class! I had signed up for the 1 week trial not knowing anything about F45 other than that it's close to my house and that I needed to get in shape! So glad Coach Chris motivated me to check them out when I called for info. This gym is very clean and bright. The workouts are always different and challenging, and along with the great music, I'm never bored. All the coaches are awesome and really encouraging. Shoutout to Coach Chris, Niki, Grant, Kristi, Jason, Kara, Nickolas! During the 45 min. workout they are constantly motivating, cheering and helping correct your form if you're not doing something properly. I'm a happy member and I recommend you go and give this place a try. read more

Did Orangetheory for several years. It got a bit stale. Former OTFers recommended F45. Fortunate to live close to one. Almost 2 months in and so glad I made the switch. Great workouts and at 4S location the coaches and owners are refreshing. They really seem to care about their clients. Offering tips/corrections to everyone. Great positive environment. Well done Chris, Jason, Kara, and all the awesome trainers! read more

I really enjoy these classes. I have been to o several F45 studios throughout the county and all were great. The employees at this location though are very welcoming. They seem to really care about helping people reach their goals. read more

I went there last weekend since I was going to be in the area. I did book in by signing up for the free trial. I did email them also maybe the day after that I didn't think I could make it and I was told that they would take me out of the schedule. I found out the day or 2 before that I would be going there so I texted back and asked if I was on the schedule. I was told I was. I had even checked online and it said I was. I wanted to triple confirm since I was going from L.A so I emailed as well. I was then told that the wait list was for community members only. Ummm... Ok. I was told I was in the class. I was allowed in the class since it was not full. I GREATLY appreciate them having me BUT I guess the vibe I am used to was not there. During the demo one of the trainers she kept looking at her phone, for I guess the workout to explain during the demo. Then during the class there was not much from the trainers. There was no yelling and pumping anyone up. Inside voices only. Maybe I am used to the LA craziness. Don't get me wrong, I got in a hell of a workout. I didn't feel the welcoming from the coaches like I see our LA coaches welcome new members or new people coming in. Once again though, thank you. read more

Best workout! The coaches are all motivating and encouraging! Love the team atmosphere and camaraderie! You want a great full body workout with lots of variety and motivation, This the place to go! Not just for beginners but athletes of all levels. read more

Coming from a workout junkee, I highly recommend F45 4S Ranch. It's 45 minutes of Functional fitness fun. Coach Nick and Chris were phenomal coaches. If you live around the area definitely give them a try. read more

Best best best workout ever!!! This place is changing my life! I have NEVER been able to do real push ups and despised them. I LOVE them after just a few months of this incredible gym giving me upper body strength that I have never had. As a runner and cyclist, I have dedicated everything to cardio. I have joined every gym around and never enjoyed weights. This workout is fun, challenging, always different and flies by!! The community is incredible, so wonderful that I drive 20 minutes when there's another location next to where I live. Go try the free week and you'll be hooked! read more

Great effective and efficient workout! Awesome attentive coaches. Thanks Coach Cash and Coach Nick for keeping our form in check and injury free. Built strength in the past month and really thankful for this gym! read more

My favorite workout! The coaches are amazing and the workouts are incredible. So thankful that F45 is finally nearby!!!!!

The best work outs!!!! I love the consistency of great classes...I've been to many studios and was so happy to see that one opened locally!! And with so many class time options...Yay! read more

I've been coming to F45 4S Ranch for years. The staff is very professional, and they always come up and greet everybody by name. It really makes this an amazing place to come work out. read more

I had some difficulties canceling my membership because of my injury.... Kera made it work out!!! Hopefully, I'll return soon. Thank you Kera read more

My sister and I love this studio. We have tried 2 other F45 locations but trust me, which studio you go to makes a huge difference. The workout might be the same but how hard you are pushed and the energy you get from the coaches makes the class. Kara, Jason, Chris, Nick, Nicki and Michael not only make you feel welcome, but push you so you can make the most of your goals and time at the studio. There is definitely competition but it's all in good fun and not negative. read more

I am so happy with F45. Love the workout and the staff the coaches are so amazing making surety to help with every single exercise to properly get the full benefits . I have seen such a huge difference in my body since I've been going . I love it so addicting I recommend to to everyone. !!!!!! read more

5++ stars! F45 is the best workout you'll ever get! It's intense and extremely challenging. Best part is, no two workouts are the same. I love my F45 4S Ranch Team so much, especially during this difficult time with Covid. All the coaches are amazing and always go above and beyond to make us all feel special and our workouts a success. A huge shout out to Cara, Coach Cash, Jason, Nick, Nikkie, Amy, Hailey and anyone else I'm missing. You guys rock! read more

Love this place! Owners are so friendly, studio is new and clean, and I love the individual attention you get from the trainers during class. Friendly team environment. Get ready to sweat a lot and work hard, but in a fun way. No two workouts are the same, and there is no chance to get bored, since the class moves so fast. Also love the stretching area, which they don't have at other F45 facilities. read more

4S Ranch is MY JAM! I live in Boise and typically train there but was in San Diego for a retreat and needed to workout to get my day started with a positive mindset and in a good head space. I had been to another F45 in the area and I wasn't quite feeling it. The moment I stepped in the door at 4S Ranch I was immediately welcome with open arms. The vibes here are so positive and awesome! The trainers are so motivating and upbeat. This is EXACTLY what I was looking for and so grateful for the way they helped me start my day!! Check them out, you won't be disappointed!! read more

Absolutely love this place. After no major injuries my entire life playing football, basketball, track, triathlons etc., I got my first major sports injury (back) a few years ago during a CrossFit workout. After recovering for a few years, I was finally able to do Orange theory about a year ago. Orange theory was good but it still aggravated my back a few times a month. After I switched over to F45 in June my back pain is almost completely gone. The workout is perfectly suited to working out the core and I love the fact that I can get in and out in 45 minutes. Chris and Nick do an outstanding job connecting with and motivating the class. read more

I went with a friend to try f45 and after firat class, decided to sign up. I do various workouts on my own but going to f45 has really helped me get stronger, faster, even in just the few weeks I've gone. The classes are very energetic, great overall cardio and weights training and awesome music! I especially like that it's only 45 min and goes by really fast. Love this place!! read more

I have been working out at gyms & studios all of my life. I love F45 workours and i particularly love THIS 4S Ranch F45 Studio. The owners are real, relatable & humble. They are family people and people just like us. They know the struggle and will do what they can to make fitness a lifestyle for you. Always encouraging and a pleasure to be around. I highly recommend this place. PS- Same owners at Carmel Mountain so check them out there as well! read more

Great gym, very clean, lots of varied workouts. Equipment is new and instructors are energetic. Only negative is I would like to see more form correction. read more

This place is the best-from amazing workouts to the knowledgeable trainers.it meets all of your workout expectations. Super positive energy and fun fast workouts! read more

Love F45 in 4S! It's only been a week but so far I've enjoyed every minute of it. The staff is so motivating and really help each person in every class. Can already feel a difference in such a short time! Will definitely be going back! read more

Ok, I'm not sure where to even start except to say that this place is life changing and so much more! I've been in fitness my whole life, as a young kid and even as a collegiate athlete...and I haven't seen as much of a transformation in anything I've tried as much as I did after starting F45. I've been a member since they opened and in the last 6 weeks I've seen huge changes in my body - losing body fat and inches. But it's not just about the transformation - this place is about being part of a family - a group of community members, friends and amazing trainers who really care about you, your well being and about making fitness fun. Chris, Kara and Jason (owners) make it a point to get to know each and every one of us and each workout, the are there helping you, cheering you on and motivating you to keep going. I am so happy I found this place and love being an F45 fit fam member :) Thank you!! read more

Great workouts. Coach Cash is very attentive and makes sure you are working out at your full potential without injury. Wealth of knowledge and always willing to find new ways to push ourselves and our bodies. Love the workouts. read more