In the last forty nine runnings of the English Classics, only winner was born in the month of May - the Aidan O'Brien
trained WAS. In sixty two runnings of both the English 1000 Guineas and 2000 Guineas, only one winner was foaled in May;
the very brilliant Rodrigo de Triano, who was born on the 27th of the month. The 4/7 favourite for the 2016 running of the 2000 Guineas, the O'Brien trained Air Force Blue, was born on the 2nd May. He ran five times as a two year old: in such circumstances the risk of over-training a horse are very high. After having finished second last in the 2000 Guineas (the lay of the decade), he ran three more times, finishing well down the field on each occasion and beaten a total of forty five lengths. For many, including so called professional punters, it was a salutary lesson: age matters.
English Classic Winners by Month of Birth 2005-2016(%).
Horse Racing: English Classic winners by month of birth.