Meet the masters of the mat

Experience the Passion and Expertise of Our Coaches

dial 808-938-JITZ (5489) to learn more!

Our Academy's story

Kaiju BJJ Academy is the premier Brazilian Jiu-Jitsu Academy in Davis, CA. With nearly 1300sq/ft of dedicated mat space and multiple sessions 7 days a week, we are your best option for a safe, clean, and welcoming environment to train and learn the intricacies of ground fighting. Led by our team of experienced coaches, you will develop a deep understanding of practical self-defense, sport jiu-jitsu, and competition prep. But more importantly, you can improve mentally and physically with like-minded individuals looking to do the same. #jiujitsuforall

Our Coaches - Guiding You to Greatness

Meet our team of dedicated instructors, each bringing years of experience and a passion for martial arts to inspire and elevate your journey.

Prof Kaiju (‘lil Aaron)

Professor Kaiju is the Head Instructor and co-owner of Kaiju Bros Jiu-Jitsu. A highly decorated Black Belt, he has been training and competing in Brazilian Jiu-Jitsu since 2011 and was awarded his BJJ Black Belt by the legendary Master Ralph Gracie.

Despite being only twenty-four years old, Professor Kaiju, also known as “Lil Aaron,” is a multi-time World Champion across several BJJ promotions. He holds an impressive competition record of 113 wins, 11 losses, and 2 draws and has competed throughout the United States and internationally.

Professor Kaiju also holds a second-degree Black Belt in Hawaiian Kenpo and is an accomplished collegiate wrestler with a record of 195 wins and 32 losses. In addition, he is undefeated in MMA and kickboxing with a combined record of 2-0.

Outside the academy, Professor Kaiju works as a behavioral analyst while pursuing his PhD. At the academy, he can often be found rolling with the kids before teaching the Advanced Gi and No-Gi classes throughout the week.

Favorite Submission: Truck to Twister

Fun Fact: Kaiju is working towards his Ph.D. in Physical Therapy and, while not on the mats, loves online gaming and is quite the foodie

Registered Black Belt

Coach Alex

Coach Alex is a Brown Belt and the head instructor of our kids’ program. As the other half of Kaiju Bros Jiu-Jitsu, he has been training in Brazilian Jiu-Jitsu since 2011. He also steps in to teach adult classes from time to time and is known for his pressure-heavy, top-focused approach to BJJ.

Having grown up around Jiu-Jitsu for more than half his life, Coach Alex has developed an appreciation for the art that few can fully understand. Like his older brother, he also holds a Black Belt in Hawaiian Kenpo and competed in wrestling throughout junior high and high school.

Coach Alex graduated from UC Santa Cruz with a degree in Sociology, emphasizing environmental policy and marine sciences. He currently works for the DJUSD through its S.P.A.R.K. Expanded Learning Opportunity Program.

Favorite Submission: Head Arm Triangle from Kesa Gatami

Fun Fact: Alex is quite the fashionista, with shoes being his item of choice, and he spends his free time online gaming.

Coach Aaron

Coach Aaron is Professor Kaiju and Coach Alex’s father. He has trained in Brazilian Jiu-Jitsu on and off for more than 10 years and handles many of the behind-the-scenes aspects of the academy. You can find him bright and early leading the 6 a.m. and 10 a.m. classes or greeting students as they arrive for evening classes. He also periodically leads intermediate and advanced classes but tends to leave those to his sons.

When Coach Aaron is not at the academy, he is often right around the corner running APEX Cycles, the bike shop he opened in 2003. He can also be found on campus coaching the BJJ Club at UC Davis or coaching at his other gym, 777 Jiu-Jitsu in Sacramento.

Favorite Submission: Bottom Side Triangle to Kimura

Fun Fact: Aaron LOVES Boba milk tea drinks.

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or dial 808-938-JITZ (5489) today!

Proud Partners in Martial Arts Excellence

Proudly Associated with UC Davis and the Caio Terra Association

At Kaiju BJJ Academy, we take pride in our strong associations that elevate our training and community spirit. These partnerships reflect our commitment to spreading the art and discipline of martial arts within the academic community. Furthermore, our association with the prestigious Caio Terra Association links us to a network of world-class techniques and philosophies. This connection opens doors for our members to exclusive seminars, advanced training methods, and competitive opportunities under the guidance of internationally acclaimed experts. Together, these collaborations enrich our academy's learning environment, offering our students unparalleled experiences in their martial arts journey.