The Commonwealth Games representative took out both the women's 200 metre butterfly and 400m individual medley races at the Homebush meeting, which finished over the weekend.

Her podium-topping efforts come ahead of the Australian Swimming Championships on the Gold Coast next month, a Dolphins training camp in Townsville in May and Olympic trials in Adelaide in June.

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"I've done a lot of kilometres [at training] so we found that I need a bit more speed, especially for my 200 fly in the first 100," Bailey told the Newcastle Herald.

"I'm going to try and do a bit of speed work and continue to build up my aerobic capacity for the back, breast and free legs at the back end of the 400 IM."

Bailey, now based at Lidcombe and training nearby at the former Games venue under Adam Kable, stopped the clock at two minutes, 10.39 seconds (2:10.39) for the 200m butterfly and 4:40.96 for the 400m IM.

They were just outside her personal bests, 2:08.9 and 4:40.4 respectively, but within reach of the marks required for Tokyo.

"I'm two seconds off the 400 IM and half a second off the 200 fly, so I've still got to chip away a little bit," the 24-year-old said.

Bailey felt the Olympic-replica program was "challenging", having heats at night and finals the following morning.

Also at the NSW State Open and Abbey Harkin, now in Brisbane after growing up in Maitland, clinched gold in the women's 100m breaststroke (1:07.37) and silver in the 200m breaststroke (2:25.26).

Hunter Swim Club's Charlie Hawke scored bronze in the men's 400m IM (4:32.39) and narrowly missed the medals with a fourth in the 200m butterfly (2:01.59).

Ryley Twiss (Hunter) was second in the men's 1500m (16:21.97).

Nelson Bay's Taylor Corry collected silver in the women's 100m butterfly.

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