Originally Posted by
Pena
I think the programming in general says that fillies/mares just don't race against each other as 2 and 3 year olds and even as 4 years (with Breeders Crowns etc.) like they do in the gallops so I think it is almost impossible to assess.
Also with the weight relief that mare/fillies get the only penalty that you could give mares in harness racing is PBD on sex. I am pretty sure there are no Group 1 races that offer this concession.
Truth is if you owned a mare like Frith why would you not in you restrict her to fillies/mares racing. I think there is $625k reasons to stick to racing their own sex.