to the Dominican Republic in 2008. He made the move following discussion with his wife and his track colleague Félix Sánchez, both of whom are Dominican. He competed for his new country at the 2009 World Championships in Athletics, running in the heats of the 400 m race. He made his second world appearance soon after and helped the Dominican 4×400-meter relay team to fourth place at the 2010 IAAF World Indoor Championships. The Athletics Federation of the Dominican Republic chose Harrison as inaugural head of its high performance Olympic development program, whose first success was Luguelín Santos, silver medalist in the 2012 Olympic 400 metres at age 18. Harrison's role was recognised with an honorary master's degree in exercise science. He has also worked in high-performance programs in the NFL and NBA. Harrison has one son and three daughters. Personal bests International competitions See also List of doping cases in athletics Notes References External links 1974 births Living people Track and field athletes from California Sportspeople from Salinas, California American male sprinters Dominican Republic male sprinters African-American male track and field athletes Olympic gold medalists for the United States in track and field Olympic silver medalists for the United States in track and field Athletes (track and field) at the 1996 Summer Olympics Athletes (track and field) at the 2000 Summer Olympics Athletes (track and field) at the 1999 Pan American Games World Athletics Championships athletes for the Dominican Republic World record holders in masters athletics Identical twins American twins Twin sportspeople Competitors stripped of Summer Olympics medals Doping cases in athletics American sportspeople in doping cases Medalists at the 2000 Summer Olympics Medalists at the 1996 Summer Olympics Pan American Games medalists in athletics (track and field) Pan American Games bronze medalists for the United States Medalists at the 1999 Pan American Games 21st-century African-American sportspeople 20th-century African-American sportspeople