American Pharoah with authority

[Port Conway Lane]

Originally Posted by RolloTomasi

Pedigree-wise, American Pharoah would have the worst bottom side both in terms of black type and distance capability in the past 30 years were he to win the Belmont Stakes.

To a degree there has to be some reverse engineering with breeding stats.
American Pharoah's former and future siblings suddenly have black type at a classic distance.

Would it be possible for you to point out a few examples of how distance capability is determined in the female line for former Belmont winners?
(Not including the Belmont winner's accomplishments).