Decidedly was an American

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 Thoroughbred

Thoroughbred

The Thoroughbred is a horse breed best known for its use in horse racing. Although the word thoroughbred is sometimes used to refer to any breed of purebred horse, it technically refers only to the Thoroughbred breed...

 racehorse

Horse racing

Horse racing is an equestrian sport that has a long history. Archaeological records indicate that horse racing occurred in ancient Babylon, Syria, and Egypt. Both chariot and mounted horse racing were events in the ancient Greek Olympics by 648 BC...

 who is best known for winning the 1962 Kentucky Derby

Kentucky Derby

The Kentucky Derby is a Grade I stakes race for three-year-old Thoroughbred horses, held annually in Louisville, Kentucky, United States on the first Saturday in May, capping the two-week-long Kentucky Derby Festival. The race is one and a quarter mile at Churchill Downs. Colts and geldings carry...

.

Ridden by Bill Hartack

Bill Hartack

William John Hartack Jr. was a Hall of Fame jockey. He was born in Ebensburg, Pennsylvania.Referred to by the media as both "Bill" and "Willie" during his racing career, Hartack grew up on his widowed father's farm in the Blacklick...

, Decidedly set a new Churchill Downs

Churchill Downs

Churchill Downs, located in Central Avenue in south Louisville, Kentucky, United States, is a Thoroughbred racetrack most famous for hosting the Kentucky Derby annually. It officially opened in 1875, and held the first Kentucky Derby and the first Kentucky Oaks in the same year. Churchill Downs...

 track record for 1¼ miles in winning the 1962 Derby. In the second leg and third legs of the U.S. Triple Crown

United States Triple Crown of Thoroughbred Racing

In the United States, the "Triple Crown" is usually the Triple Crown of Thoroughbred Racing, a series of three Thoroughbred horse races for three-year-old horses run in May and early June of each year consisting of the Kentucky Derby, Preakness Stakes, and Belmont Stakes.While Daily Racing Form...

 series, the Preakness

Preakness Stakes

The Preakness Stakes is an American flat Thoroughbred horse race for three-year-olds held on the third Saturday in May each year at Pimlico Race Course in Baltimore, Maryland. It is a Grade I race run over a distance of 9.5 furlongs on dirt. Colts and geldings carry 126 pounds ; fillies 121 lb...

 and Belmont Stakes

Belmont Stakes

The Belmont Stakes is an American Grade I stakes Thoroughbred horse race held every June at Belmont Park in Elmont, New York. It is a 1.5-mile horse race, open to three year old Thoroughbreds. Colts and geldings carry a weight of 126 pounds ; fillies carry 121 pounds...

, he was unplaced.

In 1963 Decidedly won five of thirteen starts and set a new Keeneland Race Course record for 1¹/16 miles in winning the Ben Ali Handicap

Ben Ali Stakes

The Ben Ali Stakes is an American race for thoroughbred horses run in the Spring of each year at Keeneland Race Course in Lexington, Kentucky. For 4-year-olds and up, it is a Grade III event set at a distance of one mile and one eighth mile on the dirt...

. He was retired from racing at age five after the 1964 season in which he won two races from ten starts.

At stud

Stud (animal)

A stud animal is a registered animal retained for breeding. The terms for the male of a given animal species usually imply that the animal is entire—that is, not castrated—and therefore capable of siring offspring...

, Decidedly was the sire of nineteen stakes race winners.