Champion mare Winx became a mum on Friday night after delivering a Pierro filly in the Hunter Valley.
Winx had been overdue and the foal came only a fortnight out from the Cox Plate, a race won four times by the superstar mare during a 33-race unbeaten streak that lasted four years.
Winx and her filly are both healthy and doing well.
The champion mare took racing to the front and back pages during her remarkable winning run, which included 25 group 1 victories. She was retired from the track in 2019 after winning a third Queen Elizabeth Stakes at Randwick.
Winx lost her first foal by I Am Invincible the following year and had been given 12 months to recover before being put in foal again.
It is a mating of two of the greats of the Australian turf. Pierro was a champion himself, winning the two-year-old triple crown of the Golden Slipper, Sires Produce Stakes and Champagne Stakes in 2012 before being a Caulfield Guineas runner-up and third in a Cox Plate in that year.
He won the Canterbury Stakes and George Ryder Stakes at group 1 level in 2013 before being retired to Coolmore Stud.
The ownership group of Peter Tighe and Debbie Kepitis and the family of the late Richard Treweeke are likely to retain the filly to race, which will be prepared by Winx trainer Chris Waller.