Hong Kong might be the final racing destination for Super Willie but it won't be before trainer Chris Waller has the chance to improve on the colt's record.

Super Willie opened his winning account after three starts in the TAB Early Quaddie Handicap at Canterbury on Wednesday, leading all the way for Tommy Berry against four rivals.

"I guess he could end up in Hong Kong but he will be given every opportunity here first," Waller said.

Waller said he couldn't take all of the credit for Super Willie's win because the colt had been given a sound foundation at The Hermitage, a horse property west of Sydney managed by bloodstock agent Anton Koolman for Hong Kong interests.

"The horse has done a lot of work out there and he was pretty seasoned by the time he came to me to be trialled," Waller said.

Super Willie ($5.50), midfield in two quality juvenile races last season behind Mossfun and Bachman, held off the Godolphin colt Mohave ($4.80) to win by a long neck with Zedfast three-quarters of a length away third.

Waller was denied one photo finish at the meeting when Preferment was beaten by Duccio but he ended up on the right side of the camera with Pythagorean in the Cellarbrations Handicap (1550m).

Having his fourth Australian start, Pythagorean had $9 to $7 support before holding off Golden Aro to deny Gai Waterhouse a training treble.

One of Waterhouse's winners, White Dove, gave emerging apprentice Winona Costin her 20th city winner, reducing her 3kg claim by 1kg.

Because jockeys for Saturday had been declared before Costin reached the milestone, she will ride with the 3kg claim at the Rosehill meeting.