Toshi Mori

Adult jiu jitsu / Kid's jiu jitsu instructor

Toshi hails from Aomori. This prefecture in Northern Japan is known to breed warriors such as the grandfather of Brazilian Jiu Jitsu, Mitsuyo Maeda (coincidentally even went to the same high school!). Toshi’s jiu jitsu journey began 18 years ago after he moved to Portland for college. He continued his training after he moved back Japan, returning to the US in 2009. He was awarded his black belt from Keisuke Andrew (founder of Enso Jiu Jitsu) in 2017.

Hans Han

Adult jiu jitsu / Kid's jiu jitsu instructor

Hans originates from Albuquerque, NM. The child of Taiwanese immigrants, Hans attempted to connect to his roots by spending much of his childhood pouring over martial arts books borrowed from the library and attempting to recreate the moves, often on his unsuspecting siblings. He then wrestled in high school finishing with a solidly mediocre record. He then had a break from grappling until he wandered into an MMA gym while living in Tokyo. He began his formal training after moving to Portland in 2009. It was here that he first trained with Toshi. Hans received his black belt from Keisuke Andrew in 2020.

Ryan Roberts

Adult jiu jitsu instructor

Ryan grew up in Portland and started wrestling at the age of 12 in 1993. He went on to be a team captain and an All State wrestler at David Douglas High School under the coaching of National Wrestling Hall of Fame member, Wayne Snoderly. After graduating, Snoderly encouraged Ryan to start coaching and gave him the opportunity to volunteer coach for the next three years. This influence from Snoderly set Ryan on the path of being a life long grappler and developed a passion for both training and coaching. In 2011, Ryan started to train Judo at Portland Judo and is currently a Nidan (2nd degree black belt) under his Sensei Roy Kawaji. He is currently training under Elan Adre at Bridgetown Judo. Ryan also started to train Brazilian Jui Jitsu in around 2013 and received his Black Belt in Dec of 2023 from Enso Portland Instructors Toshi Mori and Hans Han.

Warren Grimes

Adult jiu jitsu / Kid's jiu jitsu instructor

Warren Grimes hails from Hawaii. A retired US Coast Guard member, Warren's dedication to service extends to the martial arts realm where he holds a 2nd degree Judo black belt and a Jiu Jitsu black belt. As a former gym owner and current instructor, Warren's passion for martial arts shines through his teaching, inspiring students to reach their full potential. You’ll usually find him on the mats either working with people new to Jiu Jitsu or grabbing a favorite training partner to go over a new move that he’s just created in his head.

Chris Ash

Adult Jiu Jitsu instructor

Holding a BJJ brown belt under Hans and Toshi and a Judo brown belt (Sankyu) under Sensei Roy Kowaji, Chris combines extensive training in both disciplines to provide comprehensive coaching to his students. Originally from Milwaukee, WI, Chris has a background in high school wrestling, which laid the foundation for his love of grappling. He began training in BJJ and Judo at Portland Judo at the age of 37. Chris was immediately captivated by the culture and community surrounding these martial arts and believes that BJJ and Judo are beneficial for everyone, regardless of age or experience. Since 2019, Chris has been coaching adult BJJ in both gi and no-gi styles. He is particularly interested in the methods by which people learn and retain grappling knowledge and is committed to being the best coach he can be, helping others discover the benefits of martial arts training.

Justin Choi

Adult jiu jitsu instructor

Justin is a 4th generation black belt with martial arts running deep in his family history. He is a Judo black belt (Shodan) under Roy Kawaji, and a Jiu Jitsu brown belt training under Toshi Mori. A true submission hunter and a leg lock specialist that he not only shows in his practice but in his teachings. Justin has over 10 years of combined experience teaching both Judo and Brazilian Jiu Jitsu. He brings a clear, concise and easy to follow teaching method for all skill levels. Find him on the mats where he helps coach the Tuesday and Friday evening classes.

Amanda Gabbard

Womens only Jiu Jitsu instructor (Sunday 5-6PM)

Born and raised in Southern California, Amanda officially moved to Oregon in 2009.
Amanda’s journey in Brazilian Jiu-Jitsu began in 2016 at Impact Jiu-Jitsu Sherwood. Outside of BJJ, she enjoys spending time with friends and family, weight lifting, being near water, gardening, and relaxing at home. She is also currently pursuing a bachelor’s degree in psychology and behavioral health at George Fox University and plans to continue her education at Portland State University to earn a master’s in social work.

Ben Hardy

Adult jiu jitsu / Kid's jiu jitsu instructor

Ben Hardy is a dedicated martial artist holding a Judo Brown belt (Nikyu) and a Jiu Jitsu Purple belt. He is an active competitor in Judo and Jiu Jitsu and achieved winning multiple tournaments. He brings leadership experience as the former president of the University of Oregon Jiu Jitsu Club and currently serves as one of our kids program instructor. Ben's athletic achievements include being a key member of the 2015 6A Oregon state soccer championship team and prior to dedicating most of his time to grappling was an avid climber.

Marley Robbins

Kid's jiu jitsu instructor

A lifelong athlete, Marley has a deep-rooted history in various sports, with her main passions being soccer, track and field specializing in long distance running and pole vaulting, and roller derby where she excelled as a jammer. Her martial arts journey began in both judo and jiu jitsu under the guidance of Ray Huxen at Osagame in Philadelphia. After relocating to Seattle, she continued her training at Emerald City Judo and Framework Jiu Jitsu. It was during this time that she discovered her true passion for teaching, thanks to the incredible opportunity provided by Drew and Chrissie Vogel of Framework to instruct the Gracie Basics program for both children and adults. Marley is incredibly grateful to have both arts under the same roof once again and for the opportunity to continue her teaching career in both the judo and jiu jitsu children programs. When Marley isn’t on the mats, she’s embracing the outdoors—whether it’s skiing and snowboarding in the winter, kayaking and roller skating in the summer, or hiking year-round.

Mason Clark

Striking instructor

Hello my name is Mason. I’ve been involved in martial arts for over 10 years. Although I am at the beginning of my challenging and exciting journey into Brazilian Jiu-Jitsu, my main focus and expertise is in Muay Thai and general striking. I look forward to sharing this beautiful and yet highly effective combat art with all those who are willing and eager to learn. My classes will be rooted in the absolute fundamentals to get you started with how to strike most effectively.