Green Monkey, World's Most expensive Horse

Green Monkey was considered to be the most expensive horse in the world. The price reached $1.6 million. Green Monkey is the name of 2 years old horse racing that were sold at the Calder Race Course by Demi O'Byrne. Green Monkey is the two-times championin Kentucky Derby horse races, Green Monkey finally officially retired on February 12, 2008.

Green Monkey is owned by Randy Hartley and Dean De Renzo, they buy Green Monkey in the Fasig-Tipton Calder auction show in 2006.