2yo races should count. Filly races should not. All horses from the Derby crop are eligible to compete in the 2yo races. All horses from the same crop are not eligible to compete in filly races.
I think sprints should be excluded as well, but that is a tougher sell. If you exclude by distance, you could argue turf and sythetic races shouldn't count either. (Side note: Will they actually call it the BC Dirt Mile this year?)
|