Knicks Go is a retired Thoroughbred racehorse who was the 2021 American Horse of the Year after winning five of seven starts, including the Breeders' Cup Classic, Whitney Stakes and Pegasus World Cup. The year before he won the Breeders' Cup Dirt Mile. He is the sixth horse to win two different Breeders' Cup races.

The Breeders' Cup World Championships is an annual series of Grade I Thoroughbred horse races, operated by Breeders' Cup Limited, a company formed in 1982. From its inception in 1984 through 2006, it was a single-day event; starting in 2007, it expanded to two days. All sites have been in the United States, except in 1996, when the races were at the Woodbine Racetrack in Canada.