High Quality Content by WIKIPEDIA articles! The Jockey Club Stakes is a Group 2 flat horse race in Great Britain which is open to thoroughbreds aged four years or older. It is run over a distance of 1 mile and 4 furlongs (2,414 metres) at Newmarket, and the final part of the race is on the Rowley Mile. It is scheduled to take place each year in late April or early May.