John C. Mackersie has coached a variety of sports—including football, ice hockey, softball, baseball, volleyball and track & field—for three years at Division I Miami University (Ohio). Currently, he's the Director of Strength and Conditioning at Stevenson University (Maryland), where he directly oversee 21 intercollegiate sports. He has coached student-athletes achieving All-Conference and All-American honors as well as teams garnering tournament, conference and national titles. He's certified through the National Strength and Conditioning Association, American Red Cross, and Functional Movement Systems. Mackersie played collegiate football and still competes in the Highland Games and USA Wrestling competitions.