José Luíz Barbosa, known as Zequinha Barbosa (born May 27, 1961) is a Brazilian former middle-distance runner who specialized in the 800 metres. José participated in 4 Olympics Games.1984 Los Angeles; 1988 Soul Korea; 1992 Barcelona and 1996 Atlanta. He is the 1987 World Indoor Champion, and a two-time World Championship medallist, winning silver in 1991 and bronze in 1987. 1995 Pan American gold medalist 800m 1987 Silver medalist, 1983 Silver medalist 800m and Silver 4x400m.Jose was ranked number One in the world in the 800m in 1991.