
Kru Yai Arash Kiarash
Founder/ Head Coach

PC Kru Andy Lai
Senior Muay Thai Coach

PC Kru Nima Shahmoradi
Senior Muay Thai Coach

Coach Ana
Women’s Self Defense Coach

Coach Tiana Osborne
Head of Women’s Self-Defense Program / Communications Outreach & Client Relations

Coach Rozita Shahriari
Boxing Coach & Fighter

PC Kru Vincent Muller
Senior Muay Thai Coach

Coach Oscar
Senior Muay Thai Coach/ Strength and Conditioning Specialist

Coach Sherveen
Muay Thai Coach

Coach Jason Nicevski
Coach
Kru Yai Arash Kiarash
Founder/ Head Coach
A highly committed Martial Arts and fitness trainer with 15 years of experience, Kru Yai (Master Instructor) Arash is deeply passionate about sharing the philosophy and art of Muay Thai with as many people as possible, aiming to make a positive impact in their daily lives. With an emphasis on discipline, technique, and hard work, Arash's teaching style prioritizes building a strong mind and body.
Certifications
- Certified Kru Yai under Sports Authority of Thailand
- Certified Professional Referee under Sports Authority of Thailand
- B Teaching License, Professional Development of Muay Thai Gym Standards
- Certified Official, Referee and Judge with Muay Thai Ontario (MTO)
- Certified Official, Referee and Judge with World Kickboxing Network (WKN)
- Krav Maga Level 2 instructor
- Krav Maga Brown Belt
PC Kru Andy Lai
Senior Muay Thai Coach
Coach Andy has a decade of martial arts experience, he brings a wealth of knowledge and passion to coaching. As a taekwondo black belt and active Muay Thai fighter, he is dedicated to helping students of all levels build strength, skill, and confidence, both in and out of the ring.
PC Kru Nima Shahmoradi
Senior Muay Thai Coach
As a PC Kru, Nima works closely with students to improve pad work, conditioning, and fight awareness in a practical, structured way. Sessions are focused and efficient, designed to challenge each person at their level without unnecessary flash. For Nima, Muay Thai is about discipline, consistency, and self-improvement. Whether someone is training for fitness, skill development, or competition, his goal is simple: help them get better every session while respecting the art and the process.
Coach Ana
Women’s Self Defense Coach
Certifications
- Krav Maga Blue Belt
Coach Tiana Osborne
Head of Women’s Self-Defense Program / Communications Outreach & Client Relations
Tiana is a coach at Kingdom Muay Thai and the Head of Women’s Self Defense, where she leads the women’s only programming with passion and purpose. She earned her Black Belt in Krav Maga in 2025 and holds a Blue Shorts ranking in Muay Thai, bringing both technical expertise and self-defense knowledge to her classes. Tiana is deeply committed to empowering women through martial arts, encouraging them to step outside their comfort zones to build confidence, resilience, and further develop their fitness. Her classes are known for being supportive, safe, and beginner friendly, creating an environment where women of all levels feel welcome and capable. She is CPR and First Aid certified, prioritizing safety and care in every session. Outside of coaching, Tiana enjoys strength training, swimming, practicing Lagree, and reading. She believes martial arts is about discovering your strength inside and out.
Coach Rozita Shahriari
Boxing Coach & Fighter
Rozita Shahriari is a dedicated boxing coach and fighter based in Canada. With a deep passion for the sport, she has built a strong reputation for coaching, training, and competing at a high level. She balances her professional career with her commitment to developing fighters and inspiring athletes in the boxing community.
Certifications & Achievements
- Certified Level 2 Boxing Coach – Canada
- Certified NCCP Coach – National Coaching Certification Program (Canada)
- Gold Medalist – Brampton Cup 2025 (Canada)
- Women Reign Champion 2024 (Canada)
- Assistant Coach – Boxing Ontario’s 2022 Female Development Committee (FDC)
In 2022, Rozita contributed as an assistant coach at Boxing Ontario’s Elite Female Boxing Camp, helping train and mentor young female boxers from across Canada.
As a skilled coach and competitor, Rozita focuses on improving the technical skills, physical conditioning, and mental toughness of her athletes. She believes in the power of discipline, strategy, and perseverance, helping fighters at all levels reach their full potential.
For coaching inquiries, training sessions, or collaborations, feel free to get in touch
PC Kru Vincent Muller
Senior Muay Thai Coach
Coming Soon
Coach Oscar
Senior Muay Thai Coach/ Strength and Conditioning Specialist
Coming Soon
Coach Sherveen
Muay Thai Coach
With over 3 years of dedicated Muay Thai training and competitive experience as a heavyweight fighter, Coach Sherveen brings real fight experience, technical knowledge, and a passion for helping others develop their skills.
His approach to coaching is built around strong fundamentals, proper technique, conditioning, discipline, and confidence. Having competed himself, Sherveen understands the physical and mental demands of Muay Thai and works to help each student progress at their own pace while challenging them to reach their full potential.
Whether you’re stepping into a Muay Thai gym for the first time, training for fitness, or preparing to compete, Sherveen is committed to creating a positive, challenging, and supportive environment where every student can improve.
Coach Jason Nicevski
Coach
Jason is a 1st degree black belt under Thiago Barbosa and a 4x Ontario Provincial gold medalist. He is a NAGA Absolute Champion, 2x Submission Arts United gold medalist, 3x Victory MMA 145 lbs champion, and 3x FCP MMA 155 lbs champion.
Martial arts has been the driving force behind everything good in Jason's life. He brings that same love and passion to every class, and finds his greatest reward in passing his knowledge on to his students. Oss.
Ready to get started?
There's no better time to start than today. Start your 3-day trial and experience Kingdom Muay Thai & Fitness for yourself, with no commitment and no pressure.

