Our Instructors

Announcement: Now offering kids' boxing and kickboxing on Tuesdays and Thursdays!

Meet the Instructors

Peter Greene

Peter’s Brazilian Jiu Jitsu journey began in 2005 in Santa Barbara when (having trained in Kung Fu and Taekwondo) he walked into a Gracie Barra school eager to learn a new martial art. When a blue belt half his size submitted him eight different ways on his first day, he left determined to learn the game. Since then, he has trained around the country with Gracie Barra, Saulo Ribeiro, Marcello Monteiro, and Carlson Gracie schools. Now a black belt under Carlson Gracie black belt and UFC veteran, Todd Brown, Peter has been the head instructor of Monadnock Brazilian Jiu Jitsu since 2018. When he’s not on the mats, you can find him spending time with his two sons, reading Ortega y Gasset, and (most likely) thinking about getting back on the mats.

Mike Tabor

Mike Tabor has been training in Brazilian Jiu Jitsu for 12 years. He’s known as MBJJ’s resident leg lock specialist and for his expertise in no gi. Mike is proof that you can train hard and give people plenty of problems well past the age of 50. When he’s not working or on the mats, Mike relives his days as a member of an 80s hair metal band.

Aaron Shields

Aaron Shields (one of MBJJ’s senior brown belts) teaches a Monday evening gi class. He’s also a hiking aficionado and owner of Mudita Massage and Wellness.

Todd Tardiff

Todd Tardiff is a jiu jitsu black belt. When not teaching in Vermont, he runs a Thursday evening gi class at MBJJ.

William Reynolds

“William began boxing at age 16 at The Portland Boxing Club, Portland Maine where he trained alongside several national boxing and golden glove champions as well as a 2-time junior Olympic champion. William holds an amateur boxing record of 26-2 with 18 knockouts. In 1997 William joined the Choi Institute for Mixed Martial Arts, Portland Maine, where he trained under Korean Grand Master Choi, creator of Choi Shin Do, a hybrid form of Tae Kwon Do, boxing and grappling. William studied under Master Choi for 7 years until his passing in 2005, then under Jon Pinette, a 2nd degree black belt in Tae Kwon Do and Won Choi, a 2nd degree black belt in Choi Shin Do. William had the honor of sparring with Marcus Davis and Mike Brown. He is a versatile and well rounded coach who wants to bring his boxing and kickboxing skills to MBJJ and ultimately hopes to share Choi Shin Do with his students and his two children.”

Peter Greene

"We are very fortunate to have such a well-rounded and high caliber Jiu Jitsu facility in the Monadnock Region. Monadnock Brazilian Jiu Jitsu offers a positive experience for all patrons regardless of an individual's goal (self-defense, dependable workout, competition). The team at MBJJ is knowledgeable, friendly, and professional. I joined almost a year ago and have gained so much both on and off the mat. Cannot recommend Monadnock Brazilian Jiu Jitsu enough and the community it fosters."


"Jiu Jitsu is one of the very few things in my life that can quiet all of the noise in my head. Having such a tangible and physical challenge in front of you that needs to be solved is so foreign but so refreshing. It’s been a great outlet for relieving stress."