Te Akau Racing announce the retirement of its star mare

Season over for Horse Of The Year contender

Imperatriz will travel to Sydney later in week for her tilt at the T J Smith Stakes at Randwick.

Imperatriz has added a second win in the William Reid Stakes to her growing total of Group 1 wins.

Imperatriz has drawn barrier 10 in her bid for a second win in the William Reid Stakes.