during which years did he compete?
1990, 1991, 1992, 1993, 1994, 1994, 1994, 1995, 1995, 1996, 1997, 1997
what were the competitions?
central american and caribbean games, pan american games, olympic games, world championships, world half marathon championships, new york city marathon, london marathon, world championships, new york city marathon, olympic games, new york city marathon, boston marathon
and what were his positions?
1st, 6th, 6th, 9th, 2nd, 1st, 3rd, 13th, 1st, 6th, 5th, 4th
what was his position after 1996?
5th