Nominations for the Spring Champion Stakes were taken back in August and the final field will be determined on Wednesday.
The Group III Angst Stakes (1600m) is likely to feature a full field of 16 after 19 mares were entered for the $125,000 contest.
Golden Pendant winner Peeping and Tibbie Stakes victor She's Clean are the highest rated nominations.
The Chris Waller-trained She's Clean also holds a nomination for the October Handicap (1400m) in which there are 16 other entries including Bjorn Baker's last start winner Music Magnate and Godolphin's resuming stakes-placed five-year-old San Diego.
In the Benchmark 85 Handicap (2000m) Herne's Oak, another in-form galloper from the Baker stable, is one of 15 potential starters. John Sargent's Mr One Eleven is in the mix and is coming off an impressive win at Rosehill last month.
Talented three-year-olds Montauk, Tremezzina, Seeking Asylum and Denpurr are set to clash in the 3YO Benchmark 72 Handicap (1400m) while eight fillies and six colts have been entered for the sole two-year-old race on the program - the Kirkham Plate (1000m).
Nominations have been extended for the 3YO Benchmark 72 Handicap (1400m), Benchmark 85 Handicap (1200m) and Kirkham Plate (1000m).
Click here to view the nominations for Saturday's Spring Champion Stakes day at Randwick.