Rock Kingdom Heads Canberra Cup Weights

Group One winner Rock Kingdom heads the weights for Sunday's Canberra Cup with 59 kilograms, three more than Victorians Red Buttons and Rockpecker.

The winner of the 2009 Epsom Handicap, the Gai Waterhouse-trained Rock Kingdom heads 32 entries for $200,000 feature over 2000 metres.

Last year's runner-up Spinney has 55.5kg while 2009 winner Macknuckle goes up half a kilo to 54.5kg.

Red Buttons is prepared by Michael Kent and has won his past three starts including the Moe and Kyneton Cups.

Kent is on a country Cups roll having won Sunday's Ballarat Cup with My Bentley.

There are 10 two-year-olds entered for the Black Opal Qualifier, the winner of which is exempt from a ballot on the 2011 Black Opal Stakes.