The Pinnacle Team of Grand Masters and Black Belt Martial Arts Master Instructors

Grand Master Dr Hassan Iskandar OAM
Led by world-renowned Grand Master Hassan Iskandar PhD OAM, Pinnacle Martial Arts Sydney is guided by one of the highest-ranked Taekwondo GM Masters in the world, holding the prestigious 9th Dan Kukkiwon certification.
Kukkiwon, the World Taekwondo Headquarters in Korea, awards the most globally recognised and respected Black Belt Dan certifications in Taekwondo and Martial Arts.
Grand Master Dr Hassan Iskandar OAM brings more than 50 years of elite Martial Arts experience across multiple disciplines and is recognised as one of the most respected and influential Martial Arts leaders in Australia and internationally. He has served as President of Taekwondo Australia, a World Taekwondo Council Member, and an inductee into the official World Taekwondo Hall of Fame, reflecting a lifetime dedicated to excellence, leadership, and the advancement of Martial Arts worldwide.
Honoured with the Order of Australia Medal (OAM), the Australian Sports Medal, and the Tasmanian Star of Sport Award, Grand Master Hassan Iskandar has developed countless local, state, national, international, and continental medallists, including Australian Taekwondo representatives on junior and senior national teams.
Below are some of Grand Master Hassan achievements:
- 2013 Appointed as Oceania director for Taekwondo Hall Of Fame
- 2011 Inducted into the Taekwondo Hall Of Fame
- 2011 Elected as president of Taekwondo Australia
- 2010 Taekwondo Hall Of Fame technical advisor
- 2007 Competition Director for the Australian Youth Olympic Festival
- 2007 Senior Vice-President of Taekwondo Australia.
- 1998-2007 Executive council member for Taekwondo Australia New South Wales division
- 2006 Taekwondo Delegate to the NSW Olympic Committee
- 2006 – Australian National Team Manager at the 2006 Bangkok WTF World Cup Taekwondo Team Championships Thailand.
- 2005 – Australian National Team Manager at the 17th World Taekwondo Championships in Madrid Spain.
- 2002 -Australian National Team Manager at the 15th Asian Taekwondo championships at Amman Jordan.
- 1998 – Hanmadang Gold medallist in free style breaking
- 1998 – Hanmadang Silver medallist in power breaking
- 1998 – Manager / Coach for the Australian team at The 1998 Hanmadang in Seoul Korea.
- 1986 – Awarded the Tasmanian Star of Sport.

International Master Instructor Mirna Iskandar Madrajat – 7th Degree Black Belt
With over 35 years of martial arts excellence, International Master Instructor Mirna Madrajat is recognised as one of Australia's most respected and accomplished Taekwondo educators.
Holding the prestigious rank of 7th Degree Black Belt, Master Mirna began training at just three years of age and has dedicated her life to inspiring, educating, and empowering others through martial arts.
A highly accomplished competitor, Master Mirna has represented her art at state, national, and international levels. Her achievements include winning Gold at the 2003 NSW State Championships and International Gold at the 2004 Lebanese International, demonstrating exceptional skill, discipline, and technical mastery.
However, Master Mirna’s greatest achievements extend far beyond medals and championships.
Transforming Lives Through Martial Arts
Master Mirna is renowned for her extraordinary ability to transform shy, withdrawn, and uncertain children into confident, disciplined, and successful young leaders. Her patient, caring, and highly personalised teaching approach has positively impacted the lives of thousands of children and families throughout Sydney.
As a mother, mentor, and educator, she specialises in developing children’s confidence, focus, resilience, respect, self-discipline, leadership, and self-belief through Taekwondo, Martial Arts Self-Defence, and Martial Arts Fitness programs.
A Passion for Helping Every Child Succeed
Master Mirna’s work with children experiencing ADHD, ADD, autism, anxiety, confidence challenges, and social development difficulties is truly inspiring. Through her compassion, expertise, and commitment to every student’s success, she has helped countless children overcome personal obstacles, develop life-changing confidence, and unlock their full potential.
Many students who began their journey struggling with focus, confidence, anxiety, or social interaction have flourished under her guidance, with some progressing to become Australian Taekwondo Champions and role models within their communities.
Her ability to connect with children of all abilities and backgrounds has earned her the admiration of parents, educators, and health professionals alike.
Creating Future Leaders
Master Mirna firmly believes that martial arts is about much more than kicking and punching. It is about building strong character, positive values, resilience, leadership, and the confidence to succeed in all areas of life.
Through the acclaimed Pinnacle Martial Arts programs, she continues to inspire students to become the best versions of themselves—both inside and outside the training hall.
Today, Master Mirna delivers Pinnacle Martial Arts programs to childcare centres, preschools, primary schools, and high schools across Sydney, helping thousands of young people develop confidence, discipline, respect, and leadership skills that will benefit them for life.
For many families, Master Mirna is more than a martial arts instructor—she is a mentor, role model, and life-changing influence whose impact extends far beyond the dojang.

Grand Master Tony Ibrahim
With over 45 years of martial arts experience, Grand Master Tony Ibrahim is one of Australia's most respected and accomplished Taekwondo Masters. Holding the prestigious rank of 8th Degree Black Belt.
he has dedicated his life to developing champions, transforming lives, and inspiring excellence through martial arts.
A multiple-time NSW State and National Champion, Grand Master Tony dominated the competition scene for many years, remaining undefeated throughout significant periods of his career. His exceptional technical skill, discipline, and fighting ability have earned him the respect of martial artists across Australia and beyond.
Specialising in Taekwondo, martial arts fitness, strength and conditioning, weight loss, and nutrition, Grand Master Tony helps students of all ages improve their fitness, confidence, discipline, and overall wellbeing.
Through his leadership, expertise, and passion for teaching, Grand Master Tony continues to inspire students to achieve success both on the training floor and in everyday life, making him a valued mentor and role model within the Pinnacle Martial Arts family.

Master Martijn Oostendorp: nternational Taekwondo Master, Coach, Referee & Martial Arts Educator
Master Martijn Oostendorp is a highly respected martial artist, Taekwondo instructor, coach, referee, and martial arts educator with more than three decades of experience in Taekwondo, leadership, athlete development, and personal growth.
Beginning his Taekwondo journey in 1994 under Master Frans van Boxtel in The Netherlands, Martijn developed a lifelong passion for martial arts, inspired by its unique combination of self-defence, athletic performance, technical excellence, discipline, and character development.
Since relocating to Australia in 2015, he has become a valued member of the Pinnacle Taekwondo Martial Arts Academy coaching team in Marrickville, training and teaching under the guidance of Grand Master Dr Hassan Iskandar OAM.
## Internationally Recognised Credentials and Expertise
Master Martijn holds some of the highest and most respected qualifications in Taekwondo, including:
✔ 6th Dan Kukkiwon Black Belt
✔ 7th Dan Jidokwan Black Belt
✔ Kukkiwon International Taekwondo Master
✔ Kukkiwon International Poom/Dan Promotion Examiner
✔ 1st Dan Hanmudo Black Belt
As a certified Kukkiwon Master and Examiner, he has helped guide hundreds of students on their martial arts journey, mentoring many to achieve internationally recognised Kukkiwon Black Belt certification.
## Elite Competitor, Coach and Referee
Throughout his competitive career, Martijn represented Taekwondo Nijmegen and Taekwondo United as a Black Belt Heavyweight competitor, competing in major tournaments throughout The Netherlands, Germany, and Belgium, including the prestigious Berlin Open and Dutch Open Championships.
Following his retirement from competition, he continued his contribution to the sport as a coach, mentor, and referee, helping athletes maximise their potential while upholding the highest standards of sportsmanship and excellence.
In recognition of his expertise and leadership within the Taekwondo community, Martijn was appointed to the Board of Directors of Australian Taekwondo New South Wales, where he contributes to the continued growth and development of Taekwondo throughout the state.
## Developing Confidence, Discipline and Future Leaders
Master Martijn is passionate about helping students achieve far more than martial arts success. His teaching philosophy focuses on developing confidence, discipline, resilience, respect, leadership, and lifelong success skills.
Drawing upon more than 20 years of experience as a senior research manager leading large multidisciplinary teams in international clinical research, he brings a structured, professional, and supportive approach to every class.
His ability to connect with students of all ages and experience levels helps create a positive learning environment where every individual can grow in confidence, challenge themselves, and reach their full potential.
## Inspiring Excellence at Pinnacle Taekwondo Martial Arts Academy
Whether teaching beginners, mentoring future black belts, preparing athletes for competition, or developing future leaders, Master Martijn is committed to helping every student become the best version of themselves.
His extensive international experience, world-class qualifications, and passion for martial arts education make him an invaluable member of the Pinnacle Taekwondo Martial Arts Academy team and a trusted mentor for students throughout Sydney.
Train with Master Martijn Oostendorp at Pinnacle Taekwondo Martial Arts Academy and experience world-class instruction, leadership, and personal development from one of Australia’s most accomplished Taekwondo Masters.

Christian Tarlamis, Elite Olympic Taekwondo Coach Pinnacle Taekwondo Martial Arts in Sydney
When it comes to Olympic/Sports Taekwondo, elite athlete development, and championship success, few coaches in Australia have made a greater impact than Christian Tarlamis.
As the Head Coach of the High-Performance Competition Team at Pinnacle Taekwondo Martial Arts Academy in Marrickville, Inner West Sydney, Christian has built a reputation for developing confident, disciplined, and successful athletes who consistently achieve outstanding results at Local, State, and National levels
Known for his passion, technical expertise, and commitment to excellence, Coach Christian has become one of Sydney’s most respected Sports Taekwondo coaches, helping athletes unlock their full potential both on and off the competition mats.
A Proven Record of Championship Success
Under the leadership of Christian Tarlamis and the Pinnacle coaching team, athletes have achieved remarkable success across Australia’s most prestigious Taekwondo competitions.
His athletes have earned numerous:
🥇 State Championship Titles
🥇 Australian Championship Titles
🥇 KPNP Open Championship Medals
🥇 ASMA Open Championship Gold Medals
🥇 Adidas Combat League
Christian’s coaching philosophy combines elite technical development, tactical competition strategies, mental preparation, athletic conditioning, and performance psychology to help athletes perform at their best when it matters most.
His ability to prepare athletes for high-pressure competition environments has helped establish Pinnacle Taekwondo Martial Arts Academy as one of Australia’s leading centres for Olympic-style Taekwondo development.
Home of Champions – Pinnacle Taekwondo Martial Arts Academy Sydney
Working alongside Grand Master Dr Hassan Iskandar OAM, Master Mirna Iskandar, Master Marwan Iskandar, Master Inaam Iskandar, Master Moe Iskandar, Master Simon, Master Thien, and Pinnacle’s world-class coaching team, Christian has helped create one of the most successful Taekwondo competition programs in Australia.
Pinnacle Taekwondo Martial Arts Academy is recognised in Sydney and Australia as a home of champions, producing elite athletes State, National Champions and Australian Taekwondo representatives in Junior and Senior divisions, through innovative coaching systems, high-performance training methods, and a culture of excellence.
Students who train under Coach Christian benefit from a proven development pathway designed to maximise both athletic performance and personal growth.
More Than Medals – Building Complete Athletes
While championship success is a key focus, Coach Christian believes true success extends far beyond winning medals.
Every athlete is challenged to develop:
✔ Confidence Under Pressure
✔ Discipline and Self-Control
✔ Focus and Determination
✔ Leadership and Responsibility
✔ Mental Toughness and Resilience
✔ Sportsmanship and Respect
✔ High-Performance Habits
✔ A Champion Mindset
His mission is to help every student become not only a better athlete but also a stronger leader, role model, and individual.
This holistic approach has helped countless students develop skills that positively impact their education, careers, relationships, and everyday lives.
Elite Coaching That Produces Results
Christian’s coaching style is built on precision, accountability, encouragement, and excellence.
Athletes receive expert guidance in:
Olympic – Sports Taekwondo Sparring (Kyorugi)
Develop advanced kicking techniques, tactical awareness, timing, speed, and competition strategy used by elite athletes worldwide.
High-Performance Athlete Development
Build strength, conditioning, agility, flexibility, endurance, reaction speed, and explosive power necessary for elite competition.
Competition Preparation
Learn how to prepare physically and mentally for tournaments, championships, and high-pressure performance environments.
Leadership & Personal Development
Develop confidence, resilience, communication skills, responsibility, and the habits required for long-term success.
Recent Championship Success
The effectiveness of Coach Christian’s coaching systems continues to be demonstrated through Pinnacle’s exceptional competition results.
At the ASMA Open Tournament, Pinnacle athletes achieved an extraordinary result, winning Gold Medals across every division entered and Gaping their opponents in every fight and every round.
Outstanding performances included:
🥇 George Osborne
🥇 Ali Ahmad
🥇 Dimitri Dasakis
🥇 Mikele Chironi
🥇 Sleiman (Sam) Iskandar
One of the tournament’s most inspiring moments came when Sam Iskandar successfully competed in the Black Belt Division despite holding Red Belt rank, defeating more experienced opponents to secure an outstanding Gold Medal performance.
These achievements reflect the technical excellence, confidence, courage, and champion mindset developed through Pinnacle’s elite coaching program.
Similarly, Pinnacle athletes have achieved exceptional success at KPNP Open competitions, earning multiple Gold Medals and prestigious athlete awards, including Best Male Kyorugi Athlete honours.
Why Athletes Choose Christian Tarlamis
Athletes and families choose Coach Christian because of his:
✔ Proven Championship Results
✔ Elite Competition Experience
✔ Athlete-Centred Coaching Approach
✔ Passion for Developing Future Champions
✔ Ability to Build Confidence and Mental Toughness
✔ Commitment to Excellence
✔ Positive and Motivating Leadership Style
✔ Dedication to Every Student’s Success
Whether coaching a beginner entering their first tournament or preparing elite athletes for major championships, Christian brings the same level of professionalism, passion, and commitment to every training session.
Train with One of Sydney’s Leading Taekwondo Coaches
Whether your goal is to become an Australian Champion, represent your state, compete in Olympic-style Taekwondo, improve your fitness, develop confidence, or simply challenge yourself to achieve more, Christian Tarlamis provides the coaching, mentorship, and expertise to help you succeed.
Through world-class instruction, proven athlete development systems, and a relentless commitment to excellence, Coach Christian continues to inspire, motivate, and develop Australia’s next generation of Taekwondo champions.
Train with Christian Tarlamis at Pinnacle Taekwondo Martial Arts Academy Sydney and discover why champions are made at Pinnacle.
Pinnacle Taekwondo Martial Arts Academy Sydney – Where Champions Are Built, Leaders Are Developed, and Excellence Becomes a Habit.
0410 686 585