A couple of days ago we looked at how much influence Bold Ruler has had on Thoroughbred racing's top synthetic sires. So the question now is: are his bloodlines less present in poorer-performing all-weather studs?

It's no secret that progeny of Bold Ruler-line stallions have enjoyed success on synthetic racing surfaces. As all-weather tracks continue to flourish, let's take a look at some top synthetic sires to see how much influence they have from Bold Ruler and the larger Nasrullah line.

Hard Spun wins a few titles in the breeding shed. I also see some similarities between the son of Danzig and other Thoroughbred sires Point Given and ... Big Brown ???