Improving mare Lady Echelon showed she won't be out of place in the Melbourne spring carnival after her first-up win at Doomben on Saturday.

Lady Echelon will join stable star River Lad on the float for Melbourne on Tuesday with her first mission the Ladies Day Vase (1600m) at Caulfield on October 15.

Before the race, trainer Natalie McCall had warned Lady Echelon would not be travelling unless she performed on Saturday.

However, she had no worries when Lady Echelon ($4.60) scored by head to Harada Bay ($3.80) in the Business Success Group Handicap (1350m).

McCall said after Ladies Day Vase, Lady Echelon would tackle Group Three or Listed races during the carnival.

"I think she is up to that grade but I would like to think we have the grey series at Flemington as a fall back if she doesn't measure up to them," he said.

"Then again she might get too much weight in those races after this win."

Lady Echelon is a noted wet tracker and McCall admitted she wouldn't mind some rain in Melbourne in the next few weeks.

River Lad, who won the Group One Stradbroke Handicap in June, will have his first Melbourne start in the Gilgai Stakes at Flemington on Saturday.

Meanwhile, trainer Gillian Heinrich confirmed she wouldn't be rushing her promising mare Shiraz Attack after her barnstorming first-up win in the Brisbane Produce Handicap (1200m).

Shiraz Attack was having her first start since being well beaten in the Gunsynd Classic at Eagle Farm in April.

"I made a mistake in rushing her back after the Millions carnival for the winter carnival. It wasn't fair to her and we won't be making that mistake again," Heinrich said.

Former Sydney galloper Our Boy Nicholas ($3.10) made it four wins from five starts since arriving in Queensland when he won the FOC Construction and Fitout Qld Handicap (1600m).