He has been involved in martial arts for over 45 years. April of 1977 was his first formal class in Taekwon-Do under Kim, Yong-soo (K-6-179 I.T.F.) Grant Sahyun started formally instructing in January 1988 with the formation of the Kido Kwan™. Originally formed inside a Living Well Fitness Center and called the Korean Kido Kwan with six adult students that first night, before being changed to Kido Kwan Martial Art International™ (기도콴) in October 1999 after having other schools that did not formally teach the ChangHon system of Taekwon-Do and with over 1250 current members.
He has extensive training in many styles of Taekwon-Do, with formal training in ChangHon 창헌 (OhDo Kwan 오도관/吾道館), ChungDo Kwan 청도관/靑濤館, and SongMoo Kwan 송무관/松武館 and SongAhm Taekwon-Do. Holding black belt rankings in ChangHon and ChungDo Kwan and SongAhm. Nowling Sahyun also holds black belt rankings in several other martial art forms such as Tang Soo Do Moo Duk Kwan DanBon# 24104 당수도 唐手道 무덕관 武德館, Aikido 合気道, Hapkido 합기도, Kenpo (Tracy-American) 拳法, Goju-ryu 剛柔流, and Judo 柔道.
He has had the privilege to study many other forms of martial arts as well, such as Muay Thai มวยไทย, Hwarando™화랑도/花郞道, Kuksoolwon 국술원/國術院, Hanmudo 한무도/韓武道, Shotokan Karate 松濤館, Jujitsu 柔術, Kendo 剣道, Ninjutsu 忍術 and others. He has also studied in some of the homelands of martial arts like Korea, Japan, China, Thailand, and India.
Grant Sahyun has had the 
privilege of also meeting some of the greats in the martial art world and receiving instruction, classes, business ideas, etc. some of the likes of GM Son, Duk-sung (GM & 2nd Head of the Chung Do Kwan TKD); General Choi, Hong-hi (Founder of TKD/ITF); GM C.E. Sereff A-9-1(ITF TKD), GM Hwang, Kwang-sung K-9-1 (ITF TKD); GM Park, Jung-tae (ITF TKD); GM Park, Jong-soo (ITF TKD-CAN); GM Park, Jong-soo (WTF-USA) GM Kimm, He-yong (Founder of Han Mu Do); GM Wilson Vann (GM WTF TKD); Master Charles LaVanchy (GM Chung Do Kwan TKD); GM Robert Wheatley (ITF TKD); GM Lee, Heung-ung (ATA TKD); GM Han, Bong-soo (Hapkido); GM Rhee, Ki-ha GB-9-1 (ITF TKD); GM Rhee, Joon (Father of TKD in the USA); GM Al Tracy (Tracy Kenpo), GM Mike Wollmershauser(Hapkido); Morio Higaonna(Goju-Ryu), GM Shin, Chul-jae (WTA Tangsoodo); Hwang, Ki (Founder Moo Duk Kwan); Hwang, Hyun-chul(2nd Head of MooDuk Kwan); Chuck Norris, Pat Johnson, and many, many more.
He has the privilege of also competing in many organizations, local, regional, international, and world championships. He has placed in many of these events, at the world and international levels but has enjoyed the local and regional competitions as they were a lot more numerous and easier to attend. Nowling Sahyun while ‘officially’ retired from competition on obtaining his IV Dan, has from time to time dusted off his sparring gear and pattern techniques and competed with his most recent (2007) competition winning 3rd in sparring and 1st in patterns after at ten-year span of not competing.
He has also had the honor of instructing at many regional, national, and international events, such as Canada, South America, Central America, Europe, South Korea, North Korea, Japan, and the Middle East.
He is also a qualified International Instructor receiving his certificate from the I.T.F. as well as National Instructors certification. Along with being an I.T.F. plaque holder. He has obtained his I.T.F.Class A Umpire certificate as well.
He has also lived in many states and communities and has given to every one of them, his time, effort, and unique abilities. Having lived in the US States of Indiana, Kentucky, Tennessee, Georgia, Texas, Florida, and Hawaii. In July of 2010, he was selected as a CASA (Court Appointed Special Advocate) for one of Indiana’s 92 counties, a licensed foster parent, and has four kids ranging from 26 years old. 6yo, 5yo, and 3yo (the youngest three are adopted), and so far all the kids have started their martial arts journey; and has been donating his time and efforts to many local, regional, and national charities.
Below are some of his dates of promotions:
9th Kup Taekwon-Do 11 August 1977 (A.T.A. pre-Song-Ahm) Lee, Haeng-ung; President
6th Kup Taekwon-Do 04 August 1978 (A.T.A. pre-Song-Ahm) Lee, Haeng-ung; President
1st Dan Taekwon-Do 15 June 1981 (I.T.F.) & (A.T.A pre Song-Ahm) Choi, Hong-hi; President
2nd Dan Taekwon-Do 27 June 1982 (I.T.F.) & (A.T.A pre Song-Ahm) Choi, Hong-hi; President
3rd Dan Taekwon-Do 15 April 1983 (I.T.F.) Choi, Hong-hi; President
4th Dan Taekwon-Do 08 August 1990 (I.T.F.) Choi, Hong-hi; President (K.A.T.U) Cho, Dae-sung President
5th Dan Taekwon-Do 25 April 1998 (I.T.F.) Choi, Hong-hi; President (K.A.T.U.) Hwang, Kwang-sung; President
6th Dan Taekwon-Do 14 January 2003 (I.T.F.) Chang-Ung; President (K.A.T.U.) Hwang, Kwang-sung; President
7th Dan Taekwon-Do 14 January 2009(I.T.F.) Chang-Ung; President, American Taekwon-Do Coalition – Gwen Hall, President, Kido Kwan
8th Dan Taekwon-Do 11 April 2017 (ATC, Kido Kwan, GTFI)
1st Dan Taekwondo 15 January 1985 (W.T.A.) Son, Duk-sung; President
2nd Dan Taekwondo 11 July 1987 (W.T.A) Son, Duk-sung; President
3rd Dan Taekwondo 09 August 1993 (W.T.A.) Son, Duk-sung; President
4th Dan Taekwondo 05 April 2000 (W.T.A.) Son, Duk-sung; President
1st Dan Hapkido 15 June 1981 (A.H.A.) Michael J. Wollmershauser; President
2nd Dan Hapkido 15 April 1983 (A.H.A.) Michael J. Wollmershauser; President
3rd Dan Hapkido 11 September 1988 (A.H.A.) Michael J. Wollmershauser; President
4th Dan Hapkido 30 April 1992 (A.H.A.) Michael J. Wollmershauser; President
5th Dan Hapkido 01 June 2000 (W.H.F.) GM Kwang, Sik-myung; President
6th Dan Hapkido 11 July 2006 (W.H.F. GM Kwang, Sik-myung; President
1st Dan Aikido 31 October 1994 (Aikikai) Saotome, Mitsugi; President
2nd Dan Aikido 22 October 1996 (Aikikai) Saotome, Mitsugi; President
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