A runaway win by first starter Shadow Lawn at Doomben on Wednesday has provided a boost for trainer Barry Baldwin in more ways than one.

Baldwin had unsuccessfully tried to sell Shadow Lawn's full brother but expected renewed interest following his sibling's city victory.

Shadow Lawn was a betting ring drifter from $4.40 to $6 after a plunge on another first starter, Kirsten Cove, who firmed from $7.50 to start a $3.60 favourite in the Sky Racing Plate (1200m).

However, Shadow Lawn proved far too good, trouncing Hotbot ($6) by seven lengths with another short neck to Red Chandelier ($5) in third.

Kirsten Cove had every chance and finished fourth.

Shadow Lane is by Rothesay out of Art Gallery and is a half sister to the Baldwin-trained Glendara who has won four of his 11 starts in Queensland.

"We have also been trying to sell Shadow Lane's full brother, who is a yearling, for $21,000 but we have had no interest," Baldwin said.

"We might get a few more phone calls now."

Baldwin said Shadow Lawn had been late getting to the races because she had a virus early in her campaign.

Meanwhile, trainer Rex Lipp's decision to bring In His Stride back to midweek class proved a winning move in the Channel Seven Plate (1200m).

In His Stride ($4.80) was always travelling like a winner and gave first season sire Rothesay a clean sweep of the two-year-old races at Wednesday's meeting.

"In His Stride had good Saturday race form but he came back from a spell a bit big so I wanted him to run in a midweek race first," Lipp said.