A look back at some of the most memorable Derby prep races over the last twenty years.

It's hard to find fault in Big Brown's performance here in the Preakness. He was barely asked to run by the jockey Kent Desormeaux and buried an overmatched field.

The 2008 edition of C-J Derby DataTrack has now been updated for the last time and contains the Derby Rating, a total based upon a mathematical formula that assigns a value to each of the nearly 60 factors included in the data base.