Reyes enjoyed her best year in 1988, in which she became continental champion at the 1988 European Athletics Indoor Championships with a 3000 m walk win in a championship record time of 12:48.99 minutes. She claimed a 10,000 m walk bronze at the 1988 Ibero-American Championships in Athletics outdoors. She would go on to win a further European indoor bronze medal in 1989 and took the Ibero-American title in 1990. She walked at the 1991 World Championships in Athletics and made three further appearances at the World Race Walking Cup but was largely out of contention, though she did place seventh at the 1990 European Athletics Championships.