Derby Undercard turf races

[$bill]

Steve,
In 2 of the turf races on Derby undercard, the 2 horses that went off around 10 to 1 and won you had as As. Divisidero and Tepin.

I had both as Cs and keep looking at can't see much more, maybe Divisidero because he was lightly raced.
What did you really like about these 2 horses to make them As?

Were these Thorograph horses?

Thanks,
Bill