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Our Coaches

Zach Dahm (Head Strength Coach)

Focus Areas: Strength, Muay Thai, Boxing

As QTC’s head coach, Zach brings extensive experience in helping people achieve their strength and mobility goals. Zach also has a strong foundation in Muay Thai, having trained and competed out of multiple martial arts schools in New York City.

Zach has a proven track record of success with clients across a diverse set of needs - from those seeking to break out of a sedentary lifestyle, to professional athletes. He has a mindful, direct style of teaching and works closely with his clients to design individualized and impactful programs.

Zach is a NSCA certified personal trainer, a FRC mobility specialist, a Kettlebell Athletics Level II coach, and holds a DVRT (sandbags) Level II certification.


Jean Chancy (Head Muay Thai Coach)

Focus Areas: Muay Thai

Coach Chancy is a dedicated Muay Thai coach with over 15 years of experience training, competing, and coaching students of all levels. Chancy has deep roots in the Nyc Muay Thai scene, and also spent some time coaching in San Diego before moving back to NYC. During that time, he’s developed a deep understanding of the art, and continues to grow and learn as a coach. His approach blends technical precision, conditioning, and the mental discipline that Muay Thai demands. 

Coach Chancy is focused on helping to build the next generation of fighters and practitioners through structured, quality training. His goal is not just to teach Muay Thai but to help students develop confidence, resilience, and a strong work ethic; key traits that extend beyond the sport. 


Eddie Yoo

Focus Areas: Strength, Kids’ Athletics

Eddie teaches Strength and leads Queens Training Club’s Kids Muay Thai program. He’s a former competitive breakdancer and jiu jitsu purple belt who is passionate about learning and teaching new physical skills.

Eddie currently provides strength sessions to clients with an emphasis on skill development through play. Eddie’s helped many busy parents and professionals reclaim their bodies through exercise and movement, and is currently open to take on new clients in the Sunnyside/Woodside area.


Jason Harrell

Focus Area: Strength

Jason is a former competitive athlete who developed a keen interest in physiology and anatomy through his struggles with injuries during his sporting career.

Jason brings with him a wealth of experience through multiple mentorships and certifications. He is a Functional Range Conditioning (FRC) Mobility Specialist, a certified Kinstretch and Strong First Kettlebell I instructor, has Precision Nutrition experience, and is a certified pre/post-natal coach.


Elora Sullivan

Focus Area: Muay Thai

Originally hailing from Massachusetts, Elora is a lifelong martial artist, having done Kung Fu since she was a young girl. She has been teaching kickboxing and fitness classes since 2013, but has focused her training in Muay Thai for the past 3 years. Elora’s had two amateur fights in Thailand in the past year and continues to train for her next bout.


Jobany Rosario

Focus Areas: Jiu Jitsu, Strength, Kids’ Athletics

Jobany is Queens Training Club’s head jiu jitsu coach and a black belt under Gabriel Marte (The Dojo NYC). He is a full-time athlete with 8 years’ experience training, competing, and teaching. He is currently pursuing a degree in Physical Therapy that he leverages in his private sessions.

Jobany is a kind, thoughtful kids’ coach that loves making combat sports and fitness accessible to his students.