Biography GM 9th degree Black Belt ITF

Name: Willem Jacob Bos

Born: Appingedam, Netherlands on November 11th, 1952 

Status: married

Children: Tamara, Tabitha, Tara, Timothy

Hobby: ITF Taekwon-Do, Watches

Favourite drink: Coca Cola and Baileys

Favoruite cities: Rome, Buenos Aires, New York

Favourite country to live at old age : Brazil (nice people, lots of beaches, good weather conditions, good food etc)

Favourite lazy place to be: at the beach!!!

 Taekwon-Do career 

At the age of 15 started Taekwon-Do on September 1968 after played soccer for 6 years. 

Black Belt Promotions: 

1972 : 1st degree 

1974 : 2nd degree

1977 : 3rd degree

1981 : 4th degree

1985 : 5th degree

1990 : 6th degree

1996 : 7th degree

2003 : 8th degree

2010 : 9th degree

Other acchievements


7 times Dutch National Champion period 1970-1978

European Champion in sparring category -63 kg year 1976


Chairman of Tournament & Umpire Committee for the All European Taekwon-Do Federation (AETF) from 1993 to 2005

Chairman of Tournament & Umpire Committee for the International Taekwon-Do Federation (ITF) from 1994 to 2005 (not the year 1999)


President of the All European Taekwon-Do Federation (AETF) period 2004 to 2006


National coach for the Netherlands from 1981 to 1987

National coach for Italy from 1987 to 1992

Technical Director

Technical Director for the Italian Taekwon-Do Federation from 1992 - present

Board of Directors Member

For the All European Taekwon-Do Federation (AETF) 1993-2005 - treasurer

For the International Taekwon-Do Federation (ITF) 2003-2007 - treasuer

For the International Taekwon-Do Federation (ITF) 2007- march 2011 - secretary general

For the International Taekwon-Do Federation (ITF) march 2011 - present - director

Technical & Instruction Committee Member

for the ITF under Gen Choi Hong Hi named as responsable to set the rules and regulations and promote pre free arranged sparring period 2000-2001

Member of the ITF Technical and Instruction Committee from 2003 - present


has given about 10 Umpire Courses in Europe and rest of the world

has given 56 IIC courses for the ITF Worldwide and instructed to over 6000 black belts


Visited over 50 countries as a competitor, coach, organizer, member of board for the AETF and/or ITF


working hard in order to create a good and professional future for the ITF 

training hard to be in shape, to give example and motivate pratitioners


can't stand members only wanting degrees without proper dedication to the art

can't stand noice

can't stand bad behavior

can't stand people smoking without considering those non smokers

can't stand drunk people

can't stand heavy traffic


one day in a house at the beach, having friends around and a dog that always is happy and never says no!