In horse racing, the practice of matching a stallion with a broodmare to create a potentially world-class Thoroughbred is a world unto its own. Many people spend a lot of money, time, and mental focus on finding just the right male-female combination that can hit the genetic lottery and result in a Triple Crown or Breeders’ Cup winner. When it does happen, the pairings become part of horse racing history – so to celebrate Valentine’s Day, here are five notable Thoroughbred “couples” from the past 20 years or so whose offspring have made mom and dad proud.

Hallmark Media and Churchill Downs Racetrack are proud to announce “Kentucky Roses,” an all-new original movie shot on location at iconic Churchill Downs, home of the Kentucky Derby.

The movie stars Andrew Walker (“Three Wisest Men”) and Odette Annable (“Supergirl,” “Walker”), alongside Ally Ledford (“His Nerd”), Peyton Meyer (“Girl Meets World,” “Days of Our Lives”), Brynn Thayer (“Fatal Attraction,” “Suits”), and Gregg Henry (“Gilmore Girls,” “Guardians of the Galaxy”), and celebrates the pageantry, tradition, and enduring spirit of the Kentucky Derby.