A live bugler played a first-race call to post that echoed and reverberated in front of a cavernously empty grandstand, and track announcer Travis Stone preceded his season-opening call with the declaration that "Better late than never, they're in the gate at Churchill Downs." But once the horses were off and running for Saturday's 11-race card, a sense of business-as-usual settled in--at least as defined by the new normalcy terms of spectator-free, pandemic-era racing in America. "It was surreal. I watched the first race of the season from the infield...