A full field of 20 plus four emergencies has been declared for the $3 million Doncaster Mile on the first day of The Championships at Randwick.

Saturday's meeting also features the $2 million Australian Derby for three-year-olds has also attracted a full field of 18 plus one emergency.

The other two Group One races on the program are the TJ Smith Stakes and the ATC Sires' Produce Stakes for two-year-olds.

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