Lone Rock is on a collision course with champion mare Black Caviar after days of heavy Sydney rain washed out plans to run her in Group One Galaxy at Randwick.

Laser Hawk is a steady favourite for Saturday's Group One Australian Derby despite drawing wide in the $1.5 million feature.

Craig Newitt got within one of his best ever haul of five winners when passed up an opportunity to ride at the Adelaide Cup meeting and stayed home for the program at Moonee Valley.

Trainer Guy Walter celebrated a winning double at Canberra on Sunday with half-brothers to two champions, headlined by Hood's victory in the Listed National Sprint.

The Randwick Guineas has been added to the autumn program for star filly Mosheen who beat the colts and geldings to claim Saturday's Australian Guineas at Flemington.

Gai Waterhouse's growing list of two-year-old winners this season hit double figures at Canterbury on Wednesday with success in consecutive races.