This horse, Cincinnati Kid, is of the same breed, and color of the horse in question. The horse in question is a dark bay with a winter coat making the fading look very extensive when in fact it is not. If the horse were to shed out in his summer coat he'd look like this. As I said this shade of bay is common among Standarbreds, and is in fact bay not brown.
This horse, Ponder, also has the same effect, and is bay.
If the horse in question were to be shed out he would like like the two above horses.
The USTA has both bay and brown in their registry as separate genetic colors.
This horse Striking Sahbra, is a Brown Standardbred.
Here are some foals sporting the two different sades. This one Bay, will get darker after his foal fuzz sheds to look like the top two, and This one a striking brown Brown will look like Sahbra when he ages.