Ken and Sarah Ramsey extended their record number of Churchill Downs wins with their milestone 500th victory at the Louisville oval Sunday. The Ramseys, the all-time leading owners at Churchill Downs ahead of Overbrook Farm in a distant second with 206 victories, won Sunday's third race with Spanned (Arch). The Nicholasville, Ky. couple have won a record 32 owners' titles at Churchill: 13 Spring Meet championships, 15 Fall Meet championships and four September Meet championships. "We've won a lot of races for the Ramseys over the years," trainer Mike Maker...