The trainer, Lemos De Souza, operates out of Newmarket — the heartbeat of British flat racing, where the best yards in the country are based. Sending out 18 winners in a single season is a solid, meaningful total, the kind of number that tells you this is a yard that knows how to get a horse ready to win. Kentucky Rain is in capable hands for a first appearance, and that counts for something when a young horse steps into the unknown for the very first time.