PROMISING Domeland filly Probability Theory appreciated a step up in distance and validated the opinion of Group One-winning jockey Tommy Berry with an impressive maiden victory at Hawkesbury on Thursday.

Having just her second career start, Berry settled Probability Theory on the hindquarters of the odds-on favourite Into Brooklyn before taking over shortly after straightening and powering away for a comfortable one-and-a-quarter length win.

Domeland Head Trainer Nacim Dilmi revealed Berry had reached out to him after the three-year-old’s first trial of her campaign at Gosford in mid-August, praising her effort and noting she looked a filly of potential.

Despite being run off her feet over 1100m on debut at Scone, Berry remained confident enough to take the ride on Probability Theory second-up out to 1300m, and the daughter of Microphone justified his opinion with a dominant performance.

“After she trialled at Gosford, I received a text message from Tommy Berry at nine o’clock at night talking about this filly,” Dilmi said.

“I had to rewatch the replay a couple of times because I thought he saw something that I didn’t.”

A $40,000 purchase from the Kirks Bridge Farm draft at the 2024 Sydney Classic Sale, Probability Theory was always towards the rear when well beaten over the shorter trip at Scone, but Dilmi was confident she would show improvement over a more suitable journey.

“She’s always shown a lot of ability, she was just left flat footed at Scone last start,” Dilmi said.

“She still ran on pretty well and when you get a jockey on like Tommy Berry, it gives you a lot of confidence.

“To knock the $1.50 favourite off the way she did, she’s got a bright future.”

Dilmi was full of praise for his team at Domeland’s Kulnura property and was confident Probability Theory would continue to improve as she stepped further out in distance.

“She had plenty left at the finish and she’s bred to go for a bit further as well, so it’s promising to see,” Dilmi said.

“After Scone, I sent her back to the farm and she’s done a lot of training there, so credit to the girls over there for getting her looking the way she did today.”

Berry was delighted to have his judgment rewarded and agreed Probability Theory had the potential to enjoy further success as she continued to develop.

“She’s a lovely filly, I liked her trials,” Berry said.

“They just looked way too sharp for her at Scone, but the key today was not letting the short-priced favourite get too far ahead of us.

“She’s going to appreciate a little bit further and she’s still got filling out to do, so she’s going to be better in time.”