Class of Derby sires

[somerfrost]

Here is an interesting list from Dr Roman's site regarding the class of the sires of Derby winners from 1940-2007:
Classic Winners 19 27.9%
Grade 1 Stakes Winners 29 42.6%
Grade 2 Stakes Winners 3 4.4%
Grade 3 Stakes Winners 1 1.5%
Listed Stakes Winners 14 20.6%
Stakes-Placed Winners 1 1.5%
Unraced 1 1.5%
Total 68 100%

Sorta interesting for those wishing to disregard breeding, 97% (66-68) were stake winners, 70.5% were either Classic or G1 winners.