Eight-time Melbourne jockeys' premiership winner Craig Williams is four wins ahead of 10-time winner Damien Oliver with two months of this season remaining.
Castelvecchio is tracking to reassert his position as Australia's best middle-distance three-year-old when he returns to his favoured distance at Rosehill.
Loving Gaby is poised for her shot at becoming the second-straight three-year-old filly to win the time-honoured Group One Newmarket Handicap at Flemington.
Three-year-old colt Bivouac is the favourite ahead of nominations for the Group One Oakleigh Plate with three-year-old filly Anaheed another strong contender.