Overview of W.H.M.A.F. instructors under master Ko Baek-yong.

International instructors

• Leon de Heus (8th dan)
• Ko Se-hwan (6th dan)
• Klaas Barends (6th dan)

National instructors

• Jenne Meyster (6th dan)
• Wim van der Linden (5th dan)

Instructors

• Edith Boogaard (6th dan)
• Mick Kohnen (5th dan)
• Evert Bos (5th dan)
• Jelle Post (5th dan)
• Paulus van Slooten (5th dan)
• Luiz Eduardo jr. Miele (4th dan)
• Michael Lee (4th dan)
• Sami Munukka (4th dan)
• Tom Foucha (4th dan) *
• Justin van Doorn (3rd dan) *
• Mustafa Fidanci (3rd dan) *

Trainers

• Richard Frankema (4th dan)
• Marco Tromp (3rd dan)
• Levi Ras (3rd dan)
• Jacob Pasterkamp (3rd dan)
• Helene de Heus (2nd dan)
• Satu Munukka (2nd dan)
• Annemieke Sprey (2nd dan)
• Roland van Boxtel (3rd dan)
• Kim Bosch (2nd dan)
• Henry van Heeswijk (2nd dan)
• Lance McKee (2nd dan)
• Tim Sorensen (2nd dan)
• Lukas Romkes (2nd dan)
• Sander van der Zwaan (2nd dan)
• James Kim (1st dan) *
• Toni Viitaniemi (1st dan) *
• Jukka Teuronen (1st dan) *
• Pedro Campillo Frontera
• Carlos Leal Campon
• David Martinez Hernandez

Note
Persons marked with an asterisk (*) have been given permission by master Ko Baek-yong to teach at this level even though they haven’t got the required dan-rank yet.