No racehorse of modern times was so good for so long. Racing until the age of nine, Kelso won thirty-nine of sixty-three races. This superstar of the 1960s earned an unprecedented five Horse of the Year titles and five divisional championships, set or equaled eight track records, and set three American standards. Much like Seabiscuit thirty years earlier, Kelso kept getting better as he got older, earning legions of fans with every passing year.