King Guillermo launched himself on the Kentucky Derby (G1) trail as an underdog who came out on top, but that’s just part of his appeal. Owned by retired Major League Baseball All-Star Victor Martinez, the colt is named in honor of his late father. The family theme runs through his story, as does a bid for an exceedingly rare accomplishment in the Thoroughbred breeding world.
The 49-1 upset winner of the Tampa Bay Derby (G2), King Guillermo was no longshot at birth. On the contrary, the well-bred youngster hails from global powerhouse Coolmore’s North American arm, Ashford Stud, now known as the home of Triple Crown winners American Pharoah and Justify.