The Coolmore Stud Stakes, registered as the Ascot Vale Stakes, is a Victoria Racing Club Group 1 Thoroughbred horse race for three-year-olds, at set weights, run over 1200 metres at Flemington Racecourse, Melbourne, Australia, on Victoria Derby Day.

[2] From its inception in 1863 until 1965 the race was for two-year-olds in the VRC Autumn Carnival, usually on Australian Cup day.

It restored in 1969 to be run in the early spring meeting in September for three-year-olds; the champion Vain was the first winner.

The move included an upgrading of the event to Group 1 status with an increase in stakemoney.

[5] The similar event that was run on the first day of the VRC Spring Carnival was moved to September and was renamed as the Group 3 Danehill Stakes.