Crossing the line as Equinox sauntered home in the Japan Cup, Christophe Lemaire gave a little shake of his head and beamed as he tried unconvincingly to pat the horse's neck. Lemaire's disbelief was such that he went floppy with delight. Championship races are not meant to be processions. Even legendary horses aren't supposed to be so superior to their contemporaries. While others bobbed and heaved with effort, Equinox arrived at the front in his races on the bridle, with Lemaire perched as if for a portrait painter. Then he...