 It is run on the Rowley Mile at Newmarket over a distance of 7 furlongs (1,408 metres), and it is scheduled to take place each year in late September.The event is named after Edmund Somerville Tattersall (1863–1942), a senior partner of Tattersalls bloodstock auctioneers.The race was formerly classed at Listed level, and it used to be open to horses of either gender.