Pompoon was an American 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 who was voted American Champion Two-Year-Old Colt for 1936.

At age two, Pompoon won the Belmont Futurity Stakes http://select.nytimes.com/gst/abstract.html?res=F00E12F83C5F167B93C6A9178BD95F428385F9 and defeated War Admiral

War Admiral

War Admiral was an American thoroughbred racehorse, the offspring of the great thoroughbred Man o' War and the mare Brushup. He inherited his father's fiery temperament and talent, but did not resemble him physically...

 to win the National Stallion Stakes

National Stallion Stakes

The National Stallion Stakes was two American Thoroughbred horse races inaugurated in 1898 at Morris Park Racetrack in The Bronx, New York.The race was separated between two-year-old fillies and colts and was for a time one of the premier events for that age group...

. http://select.nytimes.com/gst/abstract.html?res=F60E14FB3954147B93C5A9178DD85F428385F9 At age three, he finished second in both 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 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...

 to War Admiral who went on to win the Triple Crown

Triple Crown of Thoroughbred Racing

The Triple Crown of Thoroughbred Racing consists of three races for three-year-old Thoroughbred horses. Winning all three of these Thoroughbred horse races is considered the greatest accomplishment of a Thoroughbred racehorse...

.

Pompoon died on November 14, 1939 as the result of a kidney

Kidney

The kidneys, organs with several functions, serve essential regulatory roles in most animals, including vertebrates and some invertebrates. They are essential in the urinary system and also serve homeostatic functions such as the regulation of electrolytes, maintenance of acid–base balance, and...

 infection and twisted intestine

Intestine

In human anatomy, the intestine is the segment of the alimentary canal extending from the pyloric sphincter of the stomach to the anus and, in humans and other mammals, consists of two segments, the small intestine and the large intestine...

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