The Group One Caulfield Guineas for three-year-olds has received 324 nominations while the Thousand Guineas for fillies has attracted 285 entries.
Four Group One-winning juveniles from last season feature among the 324 nominations for the $2 million Caulfield Guineas for three-year-olds.
Along with Champagne Stakes winner Castelvecchio and J J Atkins Stakes winner Prince Fawaz, who are both colts, Group One-winning fillies Kiamichi and Lyre are nominated.
Lyre and Kiamichi, are among a group of 24 fillies who have been entered for both the Caulfield Guineas and the Group One Thousand Guineas for three-year-old fillies.
The two races are on the same day on October 12.
The Thousand Guineas has doubled in prize money to $1 million and has attracted a total of 285 nominations.