Peace Force's summer form is enough to convince trainer Gerald Ryan she can be just as effective in the winter.

The mare begins a campaign aimed at a start in the Group One Tatt's Tiara in Brisbane in June when she runs in Saturday's Darley Crown (1300m) at Hawkesbury.

The five-year-old won three races during the summer and missed a stakes win by just a short head when second in the Belle Of The Turf Stakes at Gosford in January.

That race was won by Mamwaazel who is also among the 29 entries for Saturday's Group Three race for fillies and mares at Hawkesbury.

Before the Gosford Group Three race, Peace Force beat Mamwaazel by a nose in a 1550m race at Canterbury.

"She is a tough mare who gives her best every time," Ryan said.

"If she can measure up she will go to Brisbane."

As a half sister to multiple Group One winner Eremein, Peace Force is already a valuable broodmare and Ryan is hoping she can bolster her pedigree page before she goes to stud.

Her stablemate Solicit has been Group One placed twice and will be given another chance at the big league a few weeks after it looked as if her career was over.

Formerly trained by Mat Ellerton and Simon Zahra in Melbourne, Solicit was sent to Ryan by owner David Moodie in the hope a change of environment would help the mare get back to winning ways.

Her first start for her new trainer on March 7 was inglorious, with Hugh Bowman easing her down in the Aspiration Quality with the mare 47 lengths from the winner.

Ryan and Moodie had a change of heart about her retirement and she will run in the Darley Crown as the highest rated entry on 101.

She earned a reprieve from retirement with a barrier trial win 10 days after her Randwick failure and could also head to Queensland in the next few weeks.

The Darley Crown is one of three Group Three races on the Hawkesbury program which is the main meeting in NSW on Saturday.