Ellerslie Sires Produce Stakes
The Ellerslie Sires Produce Stakes, currently known as the Sistema Stakes, is a Group One horse race for Thoroughbred two-year-olds held at Ellerslie Racecourse.
Run over 1200 metres on Champions Day in March, it is regarded as one of New Zealand's best two-year-old races along with the Manawatu Sires Produce Stakes at Awapuni, Palmerston North.
The race has also been called the Diamond Stakes or Auckland Diamond Stakes.