Winx's triumphant return in the Warwick Stakes settled some of her trainer's nerves but Chris Waller admits they are likely to surface again ahead of her next assignment.
Winx headlines Saturday's Chelmsford Stakes (1600m) at Randwick with 11 others entered for the Group Two race.
Of those, only Prized Icon is judged any kind of threat with the three-year-old colt the only other horse in single figures at $8 while the champion mare is at $1.20 with the TAB and shorter elsewhere.
"Her Warwick Stakes win was a relief because it told us where we are with her," Waller said.
"She has had a good week and I'm happy going to the Chelmsford but I'm sure the nerves will be there again as they always are with a horse like her."
The odds-on favourite to be named last season's Horse of the Year next month, Winx hasn't been beaten since her second to Gust Of Wind in the 2015 Australian Oaks.
Since then she has 10 starts, six at Group One level including the Cox Plate and Doncaster Mile, and although she can never lay claim to being unbeaten like Black Caviar, Waller says he understands the pressure of training a great mare.
"The expectation is there that she will keep winning," he said.
Waller's other runners are likely to be Melbourne Cup-bound Grand Marshal and Who Shot Thebarman, European imports Spiritjim and Storm The Stars, and four-time Group One winner Preferment.
The other Chelmsford entries are Bring Luck, Entirely Platinum, Hartnell and Jacquinot Bay.
Suavito, Entirely Platinum and Jacquinot Bay are all nominated for the
Dato Tan Chin Nam Stakes at Moonee Valley.
Restricted class five-year-old Bring luck also holds an entry for a benchmark 78 race at Randwick while Champagne Stakes winner Prized Icon is nominated for the Listed Ming Dynasty for three-year-olds.
G2 - Prix Maurice De Folleville
G2 - Prix Philippe Du Rozier
G2 - Breeders' Cup
G3 - Colonial Chief Stakes
G1 - Japan Autumn Internationa - Lchampions Cup