By THÉRÈSE MARGOLIS The Jockey Club at Mexico City’s Hipódromo de las Américas horse track held its first-ever Talitá Kum race on Saturday, June 29, to help raise money for scholarships for neurologically challenged children. At 6:45 p.m. sharp, Konny Pérez Espino, founder and director of the Talitá Kum Foundation, waved the checkered flags that initiated the eighth race of