Though divided by a continent, the Grade I sprints on either coast Saturday have an evocative bond that opens a far less navigable gulf between the golden era they preserve, and our own drab times. For each honors an icon of American glamor in the last century--and if a day at Saratoga or Del Mar retains a certain magic, in 2021, then that's partly because we can almost still sense the smiling, shimmering presence of Alfred G. Vanderbilt and Bing Crosby, respectively. The prestige and panache contributed by these gentlemen...