Great sire that he was, the late Dynaformer has never established himself as a sire of sires. The death of his Kentucky Derby-winning son, Barbaro, before he had an opportunity at stud may well have had something to do with that, but the sad fact is that Undrafted’s victory in the Diamond Jubilee Stakes at Royal Ascot a few weeks ago was only the second Group 1 or Grade 1 win for a grandson of Dynaformer, following that of Twilight Eclipse in the Man o’ War Stakes a few weeks earlier.