There isn't much trainer John Moloney doesn't know about his gallant mare Streets Of Seattle.

He feeds her, grooms her, studies her form, analyses her races and rides her in all her work.

But even Moloney admits to being caught by surprise by her last-start Flemington win.

"At the top of the straight I don't think anyone thought she could win," Moloney said.

Streets Of Seattle had been on the pace for most of the 2000m race, but after making a run at he leaders at the 400m she began to give ground and seemed well beaten at the 300m.

"The best I was hoping for was a good fourth," her trainer said.

In the face of the forgivable lack of faith and the half-dozen opponents who ran past her, Streets Of Seattle rallied to record the ninth, and possibly the most courageous, win of her career.

And at Moonee Valley on Saturday she will attempt a 10th when she runs in the DPOS Displays Handicap (2500m).

The race will be Streets Of Seattle's fifth since resuming, a preparation that will have her in good order to tackle a distance she has won over at the Valley.

"I think what happened at Flemington the other day is that the others all made their sprints and went past her and she just kept whacking away," Moloney said.

"That's they way she is, she won't stop trying, even when the race is over she takes a hell of a lot pulling up."

Moloney nominated the Gai Waterhouse-trained Reuben Percival, the runner-up in last season's Moonee Valley Cup, as the obvious danger, ahead of likely leader Gotta Take Care, leaving the warm favourite Arch Fire out of calculations.

"Reuben Percival is clearly the best horse in the race, but he has to give us nine kilos," he said.

"And one thing we know is that she'll be there at the finish.