A descendant of both Northern Dancer and Secretariat, The Green Monkey was sold in 2006 as a two-year-old colt for the highest price ever paid at auction for a Thoroughbred—$16,000,000.
He joins nine other descendants of Northern Dancer who clinch the entire list of the ten most expensive colts sold at auction (current to 2014).
The Green Monkey made the second start of his career at Belmont Park on October 13 in a seven-furlong race for nonwinners.
The Green Monkey was officially retired February 12, 2008 after failing to break his maiden in his three career starts.
Hartley and De Renzo bought back into the horse with partner John Magnier (Coolmore Stud).