Our Coaches
World-class coaches. Real competitors. Genuine passion for teaching.
Meet the Team
Every coach at Mastery Martial Arts is an active competitor and certified expert — not just an instructor, but a practitioner who lives and breathes martial arts every day.
Coach Thien
Thien Krua-Chottikul
Head Coach & Founder
Head Coach & BJJ Black Belt
Coach Thien (Thien Krua-Chottikul) is the Head Coach and founder of Mastery Martial Arts — one of Thailand’s most respected Brazilian Jiu-Jitsu coaches and a key figure in the development of BJJ in the country.
As a 1st Degree Black Belt under the legendary Pedro Sauer — a certified 8th degree red/black belt under Grandmaster Helio Gracie — Coach Thien carries one of the most prestigious BJJ lineages in the world. Pedro Sauer himself is one of the most respected BJJ instructors globally, making this lineage a mark of genuine technical excellence.
Beyond coaching, Coach Thien is the Head of the Grap101 organisation and the organiser of the AFG Open International — the largest BJJ competition in Thailand. Through AFG Open, he has built a platform that has elevated Thai BJJ on the world stage and given hundreds of Thai athletes the opportunity to compete in a world-class international tournament.
Coach Thien is also the owner of BKK Fight Gear — one of Thailand’s leading martial arts equipment brands — reflecting his deep commitment to growing the BJJ community in Thailand at every level.
Credentials:
1st Degree BJJ Black Belt — Pedro Sauer lineage (Helio Gracie)
Head Coach — Mastery Martial Arts
Head — Grap101 Organisation
Organiser — AFG Open International (Thailand’s largest BJJ competition)
Owner — BKK Fight Gear
BJJ Black Belt & World Games Champion
Coach Amp (Kanjutha Phattaraboonsorn) is one of Thailand’s most decorated martial artists. As a BJJ Black Belt and current Thai National MMA Team athlete, she brings a rare combination of world-level competitive experience and genuine coaching passion to every class.
Her competition record spans over a decade of international competition across World Championships, Asian Championships, SEA Games, The World Games, and professional MMA. She has competed and won medals in countries across Asia, Europe, and the Americas.
What makes Coach Amp exceptional as a coach is not just her titles — it is that she is still actively competing and winning at the highest levels. Her techniques are not from textbooks. They are battle-tested, refined in real competition against the world’s best.
But in the gym, titles take a back seat. Every student matters. Every class counts.
Credentials:
BJJ Black Belt
World Games 2022 Champion — Birmingham, USA
SEA Games 2025 Gold Medal (33rd SEA Games)
GAMMA World MMA Champion 2024 and 2025
3rd AMMA Champions 2026 Gold Medal
Muay Thai World Champion (WPMF and WMC)
20+ International Medals across World and Asian Championships
Active Professional MMA Athlete — Thai National Team
Coach Amp
Kanjutha Phattaraboonsorn
BJJ & MMA Coach
Coach Kyo
Kyoken Tampiyanan
MMA Coach
The Coach Behind the Champion
Coach Kyo (Kyoken Tampiyanan) is one of Thailand’s most respected MMA coaches. As a BJJ Purple Belt and Thai National MMA Coach, he brings deep technical knowledge across all aspects of mixed martial arts — striking, wrestling, clinch work, and ground fighting.
What truly sets Coach Kyo apart is his coaching record. He is the coach behind Coach Amp — the GAMMA World MMA Champion, World Games 2022 Champion, and SEA Games 2025 Gold Medalist. Developing a world champion from the ground up requires not just technical knowledge, but exceptional understanding of training methodology, game planning, and athlete development.
In the gym, Coach Kyo is known for his patient, detail-oriented teaching style. He breaks down complex MMA techniques into clear, digestible steps — making him ideal for beginners who want to learn correctly from day one, and for experienced fighters looking to sharpen specific areas of their game.
Credentials:
BJJ Purple Belt
Thai National MMA Coach
Coach of World Games Champion Coach Amp
Experienced MMA Competitor
Specialist in MMA Strategy and Game Planning
Judo, Jiu-Jitsu & Grappling Coach
Coach Big (Saksiri Khemmawantapong) is Mastery’s Judo and Jiu-Jitsu coach — a former Thai national athlete who competed internationally in Judo, Jiu-Jitsu, Taekwondo, and Kurash.
He finished 3rd in the World at the Kurash U19 Championship 2016 and represented Thailand at the Asian Indoor & Martial Arts Games 2017. A certified national referee and black belt in both Jiu-Jitsu (2nd Dan) and Judo, Big brings real competition experience to every class.
Credentials:
Jiu-Jitsu Black Belt, 2nd Dan
Judo Black Belt
Taekwondo Black Belt, 2nd Dan (WTF)
3rd in World — Kurash U19 Championship 2016
Asian Indoor & Martial Arts Games 2017 representative
Certified National Referee
Coach Big
Saksiri Khemmawantapong
Judo, Jiu-Jitsu & Grappling Coach
Train with Thailand's Best Martial Arts Coaches
World-class instruction. Beginner-friendly environment. First class is FREE.
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