Under racing rules, every thoroughbred in the Northern Hemisphere has this birthday
This 
is the day when all racehorses add one year to their official age ... An imported 
mare which has a foaling reference in a Stud Book recognised by the... [DOC] [TLE] Glossary of Horse Racing Terms - Saratoga ... - Saratoga Race Track [PAR] This is a glossary of horse racing terms you will hear used at the Saratoga Race 
... age: All Thoroughbreds in the Northern Hemisphere celebrate their birthdays 
on ... a race, but not permitted to start unless the field is reduced by scratches 
below a ... Every jockey going from track to track must have a receipt from the