Winx has drawn barrier four and Hartnell will jump from 10 when the pair meet again in the Chipping Norton Stakes.
Champion Winx has drawn barrier four in a 10-horse field for the Chipping Norton Stakes at Randwick in her bid for a 10th Group One win.
She is the odds-on favourite to extend her winning streak to 15 on Saturday with her main rival Hartnell to jump from the widest gate.
Winx beat Hartnell to win the Group Two Apollo Stakes last Monday week, her first start since she put eight lengths on him in the Cox Plate in October.