The center is an official CrossFit® affiliate. Last checked: 02/08/2025

CrossFit is a registered trademark owned by CrossFit, LLC, which is not affiliated with FitFit United States.

Information about G-Theory CrossFit®

Sacramento St 345
95603, Auburn
+1 530-444-9304

Opening hours

  • Monday: 5:30 – 10:30 AM, 5:30 – 7:30 PM
  • Tuesday: 5:30 – 10:30 AM, 5:30 – 6:30 PM
  • Wednesday: 5:30 – 10:30 AM, 5:30 – 7:30 PM
  • Thursday: 5:30 – 10:30 AM, 5:30 – 6:30 PM
  • Friday: 5:30 – 10:30 AM, 5:30 – 7:30 PM
  • Saturday: Closed
  • Sunday: Closed

Our comment from FitFit United States about G-Theory CrossFit:

G-Theory CrossFit, located in Auburn, United States, is a thriving fitness community led by Coach Ginger, who has transformed the lives of many members, regardless of their starting point. Known for her expertise in body mechanics and mobility, Ginger provides personalized coaching, ensuring that each member focuses on safety and proper form. Many users have praised the gym for its welcoming atmosphere, supportive staff, and engaging community spirit.

Some standout features of G-Theory CrossFit include:

  • Inclusive Environment: Regardless of fitness levels, new or experienced members feel welcomed and supported.
  • Expert Coaching: Coaches provide individualized attention, crucial for mastering the fundamentals and ensuring injury prevention.
  • Challenging Workouts: Varied exercises tailored to personal abilities help members achieve their fitness goals.
  • Strong Community: The gym fosters a supportive atmosphere, making it a great place to connect with others who are on a similar fitness journey.

While the experience is overwhelmingly positive, some users have expressed disappointment over limited drop-in opportunities, suggesting that G-Theory could enhance accessibility further. Nonetheless, G-Theory CrossFit remains a top choice for those looking to improve their fitness and overall well-being in a safe and encouraging setting.

Services, Machines and Guided Classes

CrossFit®

G-Theory CrossFit®: Opinions

4.8/5 (27 Opinions)
Kris Janssen 1 year ago

Fantastic experience: Coach Ginger, owner of G-Theory, has literally changed my life. As a 66 year old woman, I entered Cross Fit with some trepidation. It didn't look like other gyms. There were no machines plugged into outlets and all around me were weights, barbells, kettle balls, ropes, bars, mirrors, equipment operated with human power AND the warmest, most welcoming and encouraging people.In a brief review it's difficult to capture how transformed I feel having been coached by Ginger. She is brilliant! So knowledgeable about the body, about cross-fit and about all the things we are never taught. She adjusts her style for every learning style-listening, seeing & doing. She adapts and personalizes based on where each person is. She gives equals amounts of patience and pushing you to your own threshold. I have regained strength, posture, balance, endurance and confidence! Working with Ginger has not only added years to my life, but years of vitality! If you're ready for a real change, this is the place!!

Joseph Forbes 1 year ago

Fantastic experience: This gym is the BEST! Love working out here as they spend great time on teaching you the fundamentals and techniques before starting your workout. I have learned so much and really enjoy the people who are connected here! 5:30am Class is the best… get your workout done and feel accomplished.

Kim Lynch 1 year ago

Fantastic experience: G-Theory is the place to be! I’ve always wanted to try Cross Fit, but was nervous about injury. Ginger goes above and beyond to insure safety and proper form. She cares so deeply for each of her athletes and is an amazing mobility coach as well. The whole staff is top of the line! Hope to see you in class.

Bradley Cavallo 1 year ago

Fantastic experience: I've been doing CrossFit for about two years now and have tried out several different gyms. G-Theory is outstanding-- coaches are more attentive and knowledgeable about proper form and mobility than any other gyms I've tried. Lots of personal attention if your new to CF- something you won't get most places. If you know the lifts already- Ginger and her staff will definitely be able to help you find ways to improve further. Drop ins are a great way to check things out, but if your new to CF I'd suggest committing to coming in 2+ days a week for one month. That way you can experience a variety of different workouts and begin to feel and see the fitness benefits.

victoria parker 1 year ago

Fantastic experience: Best gym

Robert Noll 1 year ago

Fantastic experience: Great spot!!

Duane Dehiya 1 year ago

Fantastic experience: I was there for almost a year felt right at home from the first day. All the coaches are top knotch the workouts were great and the knowledge of the movements was awesome. G-Theory is absolutely one of the best gyms I’ve been to and would love to go back some day.

Joel Bardelmeier 1 year ago

Fantastic experience: Great way to start a great day!!! Love the attention given to reclaiming our bodies mobility. I'm a fan for sure.

Blue Jones 1 year ago

Fantastic experience: So much fun! Great atmosphere and great people!

E Little 1 year ago

Fantastic experience: I am a new member. I was nervous to start, having never done CrossFit before. I was also intimidated, worried about my ability to do the challenging workouts. I am writing to share while the workouts are still extremely difficult for me, I feel like I’m learning so much every day. Ginger is an amazing coach, she spends time to help me in the areas that she can see I’m struggling with and makes modifications so I can continue to build up my strength to advance further. Today for the first time I completed the entire workout without modifications! Ginger is extremely knowledgeable and shares so much with the class, focusing on safety and form. G-Theory is a great gym where I am already increasing my body awareness and feeling stronger. Everyone at the gym is very supportive!

Carly Healing 1 year ago

Fantastic experience: I love this gym! 100% recommend it to anyone to check it out! The coaches here are incredibly experienced and helpful. The patrons are friendly and welcoming, it is a great community to encourage and challenge you. It doesn’t matter if you have never worked out before or are an expert lifter the workouts are tailored to your level. Can’t do a pull-up? (neither can I) no problem, there’s scaling for that. Can’t do a push-up? No problem, they have scaling for that too!

Donovan Stewart 1 year ago

Fantastic experience: G-Theory CrossFit is a hidden gem in the north. I have been doing CrossFit for the past 10 years and thought I had great coaches until I met Ginger. Ginger brings a different philosophy to CrossFit with her ability to focus on the body mechanics, positioning, and recognize the potential each of us have. Ginger makes people feel motivated and inspired at 0530am!!

Eric Toschi 1 year ago

Fantastic experience: This is a great gym! The coaches create a one on one feeling even in a small group environment. They care deeply about all aspects of the training and really work with you on helping you set yourself up for success and advancement. In the little over a year I have been there, I have made large changes to my fitness and overall physical health. It is way more than just a gym! Fantastic place and happy I found it!

Tricia Baker 1 year ago

Fantastic experience: Dedicated. Professional. Knowledgeable. Patient. Positive. Motivational. Selfless. DEVOTED! Just a few words that I would use to describe Ginger. I have never seen anyone that is so dedicated and has your best interest in mind. She stresses safe and proper use of equipment and form. Can always expect a good laugh in every class! Beyond lucky to have found G-Theory.

David Winters 4 years ago

Positive experience: Met the owner yesterday. She seems very friendly. Was disappointed that her gym was not open to drop-ins. Her model is that you engage in a class session with her 1v1 or group. Looks like plenty of open floor space without a lot of unneeded equipment taking up room. Nice! Hope she makes it more open to advanced drop ins. So back to the hunt for a uncluttered gym.

Sasha Tkacheff 4 years ago

Fantastic experience: Awesome coach Super clean

Zachary Brawn 4 years ago

Negative experience: Very rude owner

C. E. Brooks 5 years ago

Fantastic experience: I am a CrossFit coach from out of town and found this gym online. I'm so glad I did, too! The coaches were knowledgeable and the classes were challenging and accessible for all skill levels, from fire breathers to those brand new to CrossFit. I've been CrossFiting for several years and I even learned quite a bit from Head Coach and Owner, Ginger! The vibe was welcoming and the community was great. The equipment is brand new and the space is thoughtfully laid out. Programming and coaching was also top notch. If you're new to CrossFit or just looking for a new box, this place is a great spot to swing by, check your ego at the door, and get fit!

G-Theory CrossFit

Brooks! It was such a pleasure having you in the gym!!!! You are a gem! Can't wait for you to pop in again! Please let me know when you are going to be in town. Thank you so much for taking the time to comment on our humble box. It makes my heart swell to read your words....this is exactly why this gym exists. You're words are very much taken to heart! Stay in touch, and Happy Holidays!!!

Kim McCool 6 years ago

Fantastic experience: G-theroy Crossfit is a one-of-a-kind fitness experience! I have been an ultrarunner for five years, and I have always struggled with integrating strength training into my workout routine. Ginger is amazing at supporting all the different levels of athletes in her classes and making sure that everyone is getting the workout they need. Previously I was wary of Crossfit classes because I didn't want overexert myself and become injured. Ginger is meticulous on form and helping everyone remain injury free - it has even helped my preexisting injuries heal faster! Her mobility classes are perfect at improving flexibility and targeting problematic areas. I HIGHLY recommend Ginger and G-Theory. It was the best decision I have made in a while.

G-Theory CrossFit

You ARE the definition of what it means to unleash ones limitless potential. There isn't enough room to explain how incredible your journey has been for me..... I know sometimes the days run into the next and it's hard to truly appreciate where we came from, but you have, and continue to transform yourself. I can't wait for what is next!!! I am blessed and honored to have you in my life and grateful to be in the position that I'm in to help you navigate through this incredible journey! Now engage though LATS! :) LOL

Scary Magdalene 6 years ago

Fantastic experience: *Excuse the name, it's a roller derby name* My name is Alethea, I've been doing Crossfit off and on for 3 years now, due to circumstances beyond my control I've been out of the fitness game for 9 months or so, going from 4-5 workouts a week to completely sedentary. Two weeks ago a customer gave me G-Theory's card and I decided to check it out, I absolutely loved the idea of a female owned box/head coach. Ginger, the owner, is simply the best coach I've had to date. Many of my lifts needed form tweaking, with heavy Oly lifts you can hurt yourself pretty badly and Ginger is dedicated to making sure that doesn't happen. My other experiences with Crossfit coaches were focused on getting those numbers up, and form fell to the wayside, it's incredible that I haven't been hurt before I started here. I'm pretty much starting from scratch, bruising my ego in the process, I might have just given up entirely after the first couple of WOD's due to frustration with my regression over the last 9 months, but Ginger has been so supportive and encouraging I decided to push through and shove my ego aside. This week I'm excited to go workout, I'm getting my old "bug" back, that awesome feeling you get after a really satisfying workout that keeps you motivated to get to the next class. The people here are warm and welcoming, and I really feel like I've landed in the perfect fit fam for me.

G-Theory CrossFit

Beyond taken aback by your words Alethea. It warms my heart to hear that your experience has been positive. Everyone struggles with slumps in their lives no matter what they are....and I'm so glad you feel at home and safe here at G-Theory CrossFit. You are family now! Get ready to rumble because there is no limit to what you can do and what you can accomplish in the gym......and in life! YOU are a gem!

Dee 6 years ago

Fantastic experience: I have a ton of friends who do crossfit on a regular basis and belong to various gyms so I feel compelled to put this out there for many reasons. You can get results at any gym if you work for it.. we all know that. Here is the difference. Our bodies change..I should know. I will be 52 this year. I have had Cancer in my body TWICE and as a cop suffered major body trauma. My body is challenging me in the worst way. Pushing myself has become critical. Changing my whole traditional gym thinking. We ask for commitment from our physicians for our health, commitment from our clergy for our spirit, commitment from our insurance agents for our possessions, commitment from public safety for our protection...Why the hell wouldn't we ask for the same commitment from a trainer for our body. If there is one variable that is missing from most gyms. ..it IS that. Ginger will give you all the commitment she has plus that much more. Commitment from YOU takes courage and discipline....demand the same from your trainer.

G-Theory CrossFit

Thank you soooooo much! I am speechless. Wish you lived closer!

Andreana Schudy 6 years ago

Fantastic experience: Ginger, I cannot thank you enough for helping me start to find "me" again...It feels great being able to push myself a little more each time and know I'm not broken and my body can still work. I still fight fear, but I'm breaking through a lot and it's because of the environment you create, the confidence you instill, and the safety you provide with the way you share your instruction. It truly is unique.

G-Theory CrossFit

Dree.....you made the first move.......I'm just the co-pilot, but so privileged you chose G-Theory CrossFit to be a part of the journey in your self discovery. The surface has only been scratched to what you can do in this world.....this is just the beginning!!! Thank you so much for your kind words. This reminds me that I'm in the right place too and doing exactly what I was called to do in life. :)

Diana Acuff 6 years ago

Fantastic experience: Six weeks in and I'm addicted. Ginger takes the time to make sure we are doing it correctly...its amazing what good coaching can do.

G-Theory CrossFit

Such an awesome attitude.... You are unstoppable, and I"m just your biggest fan and navigator! Your potential is limitless!

Dree Schudy 7 years ago

Fantastic experience: Ginger, I cannot thank you enough for helping me start to find "me" again...It feels great being able to push myself a little more each time and know I'm not broken and my body can still work. ???????? I still fight fear, but I'm breaking through a lot and it's because of the environment you create, the confidence you instill, and the safety you provide with the way you share your instruction. It truly is unique.

Dee Ingram 7 years ago

Fantastic experience: I have a ton of friends who do crossfit on a regular basis and belong to various gyms so I feel compelled to put this out there for many reasons. You can get results at any gym if you work for it.. we all know that. Here is the difference. Our bodies change..I should know. I will be 52 this year. I have had Cancer in my body TWICE and as a cop suffered major body trauma. My body is challenging me in the worst way. Pushing myself has become critical. Changing my whole traditional gym thinking. We ask for commitment from our physicians for our health, commitment from our clergy for our spirit, commitment from our insurance agents for our possessions, commitment from public safety for our protection...Why the hell wouldn't we ask for the same commitment from a trainer for our body. If there is one variable that is missing from most gyms. ..it IS that. Ginger will give you all the commitment she has plus that much more. Commitment from YOU takes courage and discipline....demand the same from your trainer.

Kimberly Dougherty 7 years ago

Fantastic experience: I am a beginner at crossfit and was a bit scared about how things were going to go for me with it. I LOVE IT! Ginger is a great instructor. She cares about teaching the basics so you learn the proper forms. Everyone that I have met there is supportive and very encouraging. I have been doing it for a month now and I already feel stronger and healthier. I know it's just going to keep getting better. New or experienced, G-Theory has classes for you!

G-Theory CrossFit

You are an incredible human.....There isn't anything you can't do when you put your mind to it Kim! Don't ever stop because when you commit, there is no stopping you!!!! Thank you for your kind words.......but most importantly thank you for "choosing" me and G-Theory! The hardest part is mustering up the courage to even step through the front door.....and you did it!!! And watch out world, he you come!

Nikki Wade 7 years ago

Fantastic experience: Ginger at G-Theory is amazing! She teaches you how to have good form so that you can remain injury free. She has a great 6 week course that is the perfect starting point and she will push you to reach your goals. One of the best benefits Ginger does is create a personalized nutrition plan. I highly recommend G-Theory.

G-Theory CrossFit

Thank you Nikki!!!!!!!!

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