Shifu Sean Martial


Sean is a nationally-ranked martial artist and accomplished instructor of traditional Gongfu, contemporary Wushu and Taijiquan. He has over thirty years of training and over twenty years of full-time coaching experience. Sean has trained many gold medalists, tournament grand champions and dozens of black sash students, and he has a record of achievement in providing leadership to students of all ages and experience levels.

Shifu Martial was the star pupil of Master Anthony Goh, who promoted him to the rank of Shifu (Head Instructor) in 1998.  He has taught classes in Gongfu and Taijiquan at colleges, hospitals, and martial arts schools, as well as having taken students for private instruction.

Shifu Mac Colestock


Mac has been studying Chinese Martial Arts since 1995, having trained under numerous esteemed and established coaches in both internal and external martial arts.  He received his black sash from Shifu Sean Martial in 2001, and his second degree in 2013.  Mac is a nationally-ranked competitor, and a 2-time National Men’s Tai Chi Grand Champion on the ICMAC circuit, and he has placed highly at international tournaments.  He presently holds more than fifty medals, over half of which are golds, for his traditional Tai Chi and Northern Shaolin performances.

Mac has coached national champions and medalists in traditional Tai Chi, Kung Fu, and Sanda.  He has been teaching independently since 2011, having taught at St. John’s College in Annapolis, Little Creek Kung Fu in Chester, MD, the University of Maryland in Baltimore County (UMBC).  Mac was the UMBC Tai Chi Coach from 2012 to 2018.  He is currently an adjunct professor for martial arts at Anne Arundel Community College in Arnold, MD, through which he also teaches senior Tai Chi classes at various locations.  Presently, Mac teaches at Wulin Institute as a second head instructor, in addition to managing the school’s operations.

Jackie Colestock

ColestockJackieA student of the martial art of Tai Chi since 1992, Jackie started her training at Goh’s Kung Fu with Master Anthony Goh’s principle student, Sean Martial.   At Goh’s she studied the Beijing Standardized 24 Form as well as the Yang 32 Form Straight Sword. In 1991 she furthered her training at Dragon & Phoenix Martial Arts Institute with Lenny Elbon, another of Master Goh’s senior students. With Lenny, Jackie studied the Yang Simplified 88 Long Form as taught by Master Goh, and the First Section of the Wu-Hao 144 Long Form as taught by Sifu Jimmy Wong of Dallas. With Lenny’s move to Nevada in 1998, she took over the teaching of several of his classes at his request. She has, individually, and partnered with her spouse, served as substitute instructors for Cloud Hands Tai Chi, formerly of Crofton, and Dragon and Phoenix Martial Arts Institute, formerly of Severna Park. In 1999 she was appointed the chief Tai Chi instructor at East West Martial Arts, formerly of Annapolis . She volunteered as the chief Tai Chi Instructor at Jing Ying Martial Arts Institute (Arnold) from 2000 – 2003 and continued to volunteer as the chief instructor of Yang Tai Chi at Jing Ying Institute until 2016.   In addition, Shijie Jackie has taught Tai Chi for Seniors (Functional Movement and Balance II) at the O’Malley Senior Center in Odenton since 1999.

During her teaching, Jackie has had the pleasure to work with many different students with a wide range of backgrounds and abilities including dementia, arthritis, and autism.

Bob Colestock

Bob started Tai Chi in 1992, training at Goh’s Kung Fu with ColestockBobSean Martial, beginning with Yang-style 24 (short) form and continuing to the present. Bob has taught Tai Chi (and some Kung Fu) at several schools over the years, both as the regular instructor and as a substitute teacher for others in the community.

Samuel Hokanson

Sam started training under Sean Martial in 2004. He received his Sam HokansonBlack Sash after six months of testing in 2008. He spent 2010 in Taiwan, where he studied Bajiquan and lion dance.  Throughout the 2011, 2012, and 2013 competition seasons, Sam placed highly with his long staff, straight sword, and empty hand forms, including winning gold for Crazy Devil Staff in multiple national tournaments.  In 2013 he received his Second Degree Black Sash after a year of testing, where he specialized in fighting, long staff, and nandao.

Mark Johnson

JohnsonMarkMark started training in Northern Shaolin kung fu under Shifu Sean Martial in 2007. He received his Black Sash in August 2014.  Since completing his black sash testing, Mark has dedicated more time to training in Chen style Taiji.  He has won gold medals in push hands competition in addition to gold and silver medals for his kung fu at local tournaments.



Wulin Black Sashes and Coaches