How old do kids need to be in order to start training at Guardian?

We train kids between the ages of 10-18 free of charge.

Can I try out the gym before purchasing a membership? 

Yes! We offer a free trial class for all new students! To sign up create a free account,  which allows you to electronically and easily fill out our liability waiver.

What should I bring to my first boxing or kickboxing class?

Hand wraps are required for boxing and kickboxing. They are available for purchase at the gym for $13 (cash or Venmo accepted), or if you have your own you can bring them. After the first class we expect you to purchase your own gloves. Boxing gloves are available for $50 at the gym or through an online vendor such as Amazon. 

What should I bring to my first Jiu Jitsu Class? 

For gi classes, a gi is required. For the first class you are welcome to borrow a gi. After the first class, gi’s can be rented for $10 per class. When you are ready to purchase a gi, we have them at the gym for $120-$150. You can also purchase one online. We do not insist that our students wear our gi’s, or wear gi’s of any specific color. Rash Guards are recommended. They are available for $50 at the gym.

For no-gi class, basic gym clothes are allowed (shorts or sweats and a shirt). Tighter fighting clothes are preferred in no-gi jiujitsu (baggy clothes are a danger to fingers and toes). Rash guards are highly recommended for these classes as well.

Please consider bringing or purchasing (we sell them for $10) a mouthpiece as well.

Do you offer personal training?

Yes we offer personal training based upon availability. Contact for more information.

Do you offer group training on site or off site? 

We do offer group training sessions on site and off site based upon instructor availability. For more information contact us at

How do I pause or cancel my membership? 

Memberships can be paused for up to 2 months for injury, travel or financial hardship. Email to pause your membership. 

All membership cancellations require 30 days notice regardless of whether or not they still are within contract. Members that are still within contract are required to pay the remainder of the contract upon cancellation. Please contact us at to cancel your membership.

Are my donations to Guardian Gym Tax deductible?

Yes. Guardian is a registered 501c3 non-profit corporation in the United States. Donations are 100% tax-deductible.

How do memberships work for kids and adults?

Guardian provides the opportunity for kids to train completely free of charge. Adult memberships are used to offset the costs of the kids program as well as general costs of running a gym such as rent, electric, water, insurance, teachers, cleaning, etc.  

What does Guardian provide for kids besides Jiu Jitsu & Boxing?

Guardian does everything in our power to provide kids a complete after-school experience. We have partnerships with local food establishments to feed as many kids as possible after class. We also have a space that kids can do schoolwork, get tutoring, or socialize with mentors while waiting to be picked up.

Can I donate things other than money to help the gym?

Yes. Guardian can issue you a tax-deduction receipt for anything that can benefit the gym, such as apparel for the kids, cell phones, computers, equipment, etc. Any clean Gis, boxing equipment, and other items can be sent to the gym.

Who is behind this whole Guardian thing?

Guardian gym was co-founded by Ben Kovacs and Joel Lunenfeld during their time working together at Twitter. They were later joined by Sacha Feinman, who is now the Managing Director of Guardian, running the gym on a day-to-day basis with Ben. 

What is the physical address of the Gym? 

Guardian Gym

1922 Webster Street, Unit C

Oakland, CA, 94612

Is there parking available near the gym?

Street parking is available, we recommend arriving 15 minutes early to secure a space close to the gym.

If I have questions about the gym, what is the best way to get in contact?

Just come visit us if you are local. Or email us:

What type of classes do you offer at the gym?

See the classes tab for descriptions.

Can I choose to just train jiu jitsu or only train boxing if i'm a member of the gym?


Do I have to spar if I attend classes? 

ABSOLUTELY NOT! No one is required to spar at the gym, or train with a teammate who doesn't make them feel comfortable. The only two requirements are to refrain from interfering or distracting from other students, and to have as much fun as possible!