The excitement of thoroughbred horse racing — and many of the sport’s most vexing problems — are exemplified by the careers of the trainers Bob Baffert and Todd Pletcher.
The track, the home of the Kentucky Derby, is moving races to another location while officials look into why 12 thoroughbreds have died at Churchill Downs in recent weeks.
The colt went on to become America’s 2-year-old champion and was favored to win the Kentucky Derby until he was scratched from the race with an injury. The doping case still hasn’t been adjudicated.