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Winx will have 11 rivals in the Chelmsford Stakes at Randwick in her bid to extend her winning sequence to 19.
The champion will wear earmuffs on Saturday with trainer Chris Waller and jockey Hugh Bowman hoping to avoid a repeat of the Warwick Stakes when she jumped out the barriers four lengths behind the field.
Winx has drawn barrier three of 12 and is the odds-on favourite.