Dominican world champion F?lix S?nchez ran the fastest 400-meter hurdle race so far this year, with 48.10 seconds on the clock and coming in first at yesterday?s Ostrava Gran Prix in the Czech Republic. The 25-year-old hurdler, nicknamed “Super S?nchez”, is expected to be one of the star attractions at the upcoming Pan American Games, to be held in Santo Domingo in August.