Amberoid 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...

 best known for winning the 1966 American Classic, the 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...

.

Amberoid was conditioned for racing by future Hall of Fame

National Museum of Racing and Hall of Fame

The National Museum of Racing and Hall of Fame was founded in 1950 in Saratoga Springs, New York, to honor the achievements of American thoroughbred race horses, jockeys, and trainers...

 trainer Lucien Laurin

Lucien Laurin

Lucien Laurin was a French-Canadian jockey and Hall of Fame Thoroughbred horse trainer.-Life and career:...

 and ridden primarily by another future Hall of Fame inductee, Bill Boland

William Boland

William N. "Bill" Boland is a retired American Hall of Fame jockey in Thoroughbred horse racing....

. Going into the 1966 U.S. Triple Crown series, Amberoid won the Wood Memorial Stakes

Wood Memorial Stakes

The Wood Memorial Stakes is an American flat Thoroughbred horse race for three-year-olds held annually at Aqueduct Racetrack in Jamaica, New York. It is currently a Grade I race run over a distance of 9 furlongs on dirt....

. He then finished seventh in the 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...

 and third in the Preakness Stakes

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...

 before winning the final leg of the Triple Crown, the Belmont Stakes.

When his racing career was over, Amberoid stood 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...

 in the United States from 1969 to 1973 after which he stood in Japan

Japan

Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

until being retired in 1985. His offspring met with limited racing success.