About
North Bay Jiu Jitsu Kids & Youth Programs offers Brazilian Jiu Jitsu, No-Gi grappling, boxing, MMA fitness, and games. The program includes structured Brazilian Jiu Jitsu classes that follow a clear progression and are described as beginner-friendly for both kids and adults. During the free trial, the program provides a Gi (uniform) that children can borrow.
• Ages: 6–12 years old
• Schedule: Unlimited access to all classes for 7 days from when a parent claims the free trial; 7 day trial
North Bay Jiu Jitsu Kids & Youth Programs is part of a Brazilian Jiu Jitsu and martial arts academy that has been serving Novato and Marin County since 2014. The program states that it focuses on structured, practical Jiu Jitsu that is accessible and sustainable for the long term, with an emphasis on techniques that work for real self-defense and everyday training rather than moves that rely on extreme flexibility or athleticism. The academy notes a supportive, family-like community and mentions that kids and adults train with confidence in a beginner-friendly culture. The program also offers free trial kids summer camps in 2026 that include Jiu Jitsu, games, and fun for ages 6–12, and it does not require credit card information for the free 7 day trial.
The leadership and coaching team includes founder and owner Tryfon Stathopoulos, a Brazilian Jiu Jitsu black belt, 2x World Champion, and instructor with more than 25 years of experience who has been teaching since 2005. Brown belt instructor and academy administrator Sonia Lastreto has more than 8 years of experience and is a seasoned competitor with medals at IBJJF Worlds and other major events. Black belt instructor and founding member Chris Cashman has more than 15 years of experience and earned his black belt in 2021. Brown belt instructor Sebastian Uhalde is an experienced competitor with more than 8 years of experience and gold medals at the JJWL Golden State Open. Black belt instructor Paulo Silva, who has a degree in psychology, has trained at North Bay Jiu Jitsu since 2012, has been teaching since 2014, and is described as the main kids instructor with more than 10 years of experience. Instructor Dmytro Pakhan is a Brazilian Jiu Jitsu purple belt, a seasoned amateur boxer with more than 20 years of boxing coaching experience, and holds a degree in Physical Education. Jacob Miller is a Brazilian Jiu Jitsu blue belt, serves as Team Captain of the No-Gi competition team, is described as an avid competitor, and is noted as a No-Gi specialist.
North Bay Jiu Jitsu notes that it serves the wider Marin County martial arts community, with students coming from Novato, San Rafael, Petaluma, Mill Valley, Fairfax, and Corte Madera.
Last updated May 11, 2026.
• Ages: 6–12 years old
• Schedule: Unlimited access to all classes for 7 days from when a parent claims the free trial; 7 day trial
North Bay Jiu Jitsu Kids & Youth Programs is part of a Brazilian Jiu Jitsu and martial arts academy that has been serving Novato and Marin County since 2014. The program states that it focuses on structured, practical Jiu Jitsu that is accessible and sustainable for the long term, with an emphasis on techniques that work for real self-defense and everyday training rather than moves that rely on extreme flexibility or athleticism. The academy notes a supportive, family-like community and mentions that kids and adults train with confidence in a beginner-friendly culture. The program also offers free trial kids summer camps in 2026 that include Jiu Jitsu, games, and fun for ages 6–12, and it does not require credit card information for the free 7 day trial.
The leadership and coaching team includes founder and owner Tryfon Stathopoulos, a Brazilian Jiu Jitsu black belt, 2x World Champion, and instructor with more than 25 years of experience who has been teaching since 2005. Brown belt instructor and academy administrator Sonia Lastreto has more than 8 years of experience and is a seasoned competitor with medals at IBJJF Worlds and other major events. Black belt instructor and founding member Chris Cashman has more than 15 years of experience and earned his black belt in 2021. Brown belt instructor Sebastian Uhalde is an experienced competitor with more than 8 years of experience and gold medals at the JJWL Golden State Open. Black belt instructor Paulo Silva, who has a degree in psychology, has trained at North Bay Jiu Jitsu since 2012, has been teaching since 2014, and is described as the main kids instructor with more than 10 years of experience. Instructor Dmytro Pakhan is a Brazilian Jiu Jitsu purple belt, a seasoned amateur boxer with more than 20 years of boxing coaching experience, and holds a degree in Physical Education. Jacob Miller is a Brazilian Jiu Jitsu blue belt, serves as Team Captain of the No-Gi competition team, is described as an avid competitor, and is noted as a No-Gi specialist.
North Bay Jiu Jitsu notes that it serves the wider Marin County martial arts community, with students coming from Novato, San Rafael, Petaluma, Mill Valley, Fairfax, and Corte Madera.
Last updated May 11, 2026.
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