Kim has taught tennis for over 20 years—during which time he developed teaching methods that stress "fast track results" for individuals looking for immediate improvement in the level of their game. His lessons concentrate on "match play" type drills and a strategic understanding of a player’s strengths/weaknesses and how to best utilize those strengths for better results. Kim has developed numerous players who have achieved great results at the WIAA and USTA levels. Two of his students made it to the finals of the WIAA state high school championships and he also had two Kohler girls, as freshmen quality for the state championships. Kim’s playing background includes two years as the #1 ranked player in the Florida section in the Men’s 45 Division. He also played on the Florida Inter-Sectional Team that competed against other USTA Sections in Tucson, Arizona. Kim was the Men’s Varsity Coach for Fond du Lac High School for seven years as well as the men’s and women’s Head Varsity Coach at the University of Wisconsin-Oshkosh.