Denis of Cork's stock on the rise

[Pedigree Ann]

Originally Posted by hockey2315

. . why can't he get the distance? ?

It's called 'fitness'. DoC will have had 4 starts lifetime going into the Derby and the last horse who did that was Exterminator, who had been purchased as a work horse for the better fancied Sun Briar and was substituted at the last minute when SB came up lame. And frankly, the best 3yos were pointed to the Belmont more than the Ky Derby in those days (Man o' War skipped it, using the Preakness for a prep race).

Lacking a foundation of race fitness, even so talented a horse as Curlin couldn't win the Kentucky Derby. Is Denis of Cork so much better than these other horses that he can manage what Curlin couldn't?