Zach Costa, Owner & Head Coach

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Zach Costa

Zach is a 1st degree black belt in Brazilian jiu-jitsu under Diogo Gomes with an impressive MMA record of 5-1-1. With 18 years of martial arts training, including time spent mastering Muay Thai in Thailand, he brings a wealth of experience to Island City Jiu-Jitsu.

A proud resident of Alameda for 13 years and a USAF / OIF veteran, Zach has always dreamed of opening a gym in his community. His passion for coaching and competing has shaped countless athletes, and he’s excited to share his knowledge with all of you.

In addition to his martial arts accomplishments, Zach holds a master’s degree in European history from SF State and is a dedicated husband and father.

Join us at Island City Jiu-Jitsu and train under Coach Zach as we build a strong jiu-jitsu family together!

Challenge Your Limits with Island City Jiu-Jitsu

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Russell Kelly-Gordon

This gym recently opened and is off to a great start. Zach, the head owner/coach, is a Brazilian Jiu-Jitsu black belt and former MMA fighter. He is extremely knowledgeable, but also welcoming and friendly to everyone, no matter their level of experience. The physical gym itself is very nice. There's a big screen TV, a full-size arcade game, and big comfy chairs to lounge in at the front. The back has the mat space, which is large and clean. The classes have a good mix of students at different levels. Overall, a great place to train grappling, kickboxing or MMA (or all three) in Alameda.

Timothy Balmorez

This gym has truly exceeded my expectations in every way. The sense of community here is incredible—everyone from beginners to advanced fighters is welcoming and supportive. The gym is spotless, with top-notch equipment that’s well-maintained, creating a clean and professional environment. The instructors are highly skilled, offering personalized attention and expert guidance that helps you improve quickly while staying safe. Whether you're here for fitness or to seriously hone your MMA skills, this place is the perfect choice!

Nicholas Cheung

I can't say enough great things about Coach/Owner Zach and the amazing team at Island City Jiu Jitsu. Coach Zach is a BJJ black belt as well as a former MMA fighter, so he has a lot of experience and depth of knowledge. I've been training Muay Thai for several years now, and Island City Jiu Jitsu is the newest gym I've started attending—and it's been a fantastic experience so far. Their Muay Thai classes are a great balance of technique and conditioning. Coach Zach and Coach Uche do an amazing job tailoring each class to meet the needs of both beginners and more experienced individuals, making sure everyone gets the most out of their training. On top of that I just started Jiu Jitsu classes as well and Coach Zach as well as the Coach Vag are great at breaking down complex techniques into simple, easy-to-understand steps which makes it the perfect place for beginners. So whether you’re interested in Brazilian Jiu Jitsu, Muay Thai, or MMA, there’s something for everyone. Come train!

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By providing your number you consent to receive marketing/promotional/notification messages from Island City Jiu-Jitsu. Opt-out anytime by replying STOP. Msg & Data rates may apply.