Fastnet Rock’s Epsom Oaks winner Qualify is to be sold at the Tattersalls December Sale.

Trained by Aidan O’Brien for owner Chantal Regalado Gonzalez, the regally bred filly will be the first Epsom Oaks winner to be sold at public auction in the year of her classic triumph for more than 50 years.

She will be offered in the The Castlebridge Consignment at the Newmarket sale that starts on November 23 and runs until December 3.

Qualify produced a devastating late run to deny 1000 Guineas winner Legatissimo the Oaks with a quality field of fillies strung out behind her.

The winner of the G3 Weld Park Stakes at The Curragh as a two year old, Qualify has won three races and more than £300,000 in prize money.

She hails from the superb Juddmonte family of Derby winner Workforce and Kentucky Oaks winner Flute.

She is the third foal out of the G2 Park Hill Stakes placed Galileo mare Perihelion and her two year old brother is the highly promising G2 placed Shogun who was beaten less than two lengths in the G1 Prix Jean-Luc Lagardere at Longchamp last weekend.

The Castlebridge Consignment will be offering a number of other fillies and mares on behalf of Chantal Regalado Gonzalez including the G3 winner and G1 placed Euphrasia carrying her first foal by Sea The Stars and the multiple G3 winning mare Yellow Rosebud in foal to Dutch Art.

Tattersalls Chairman Edmond Mahony said: “It’s very rare for an Oaks winner to be offered at public auction, especially in the year of her classic triumph.

“It is a privilege to be offering Qualify on behalf of Mrs Regalado Gonzalez. She is a gorgeous filly, a classic winner and a Group winner at two years old and is beautifully bred.

Bill Dwan of The Castlebridge Consignment added: “Qualify is a very rare commodity, a true collector's item, and we are enormously looking forward to presenting her to a global audience.”