Despite pre-race plans to lead going horribly awry the filly came from last to face the breeze with a lap remaining and went on to outgun interstate invader and long odds-on favourite Sandy Kay.
It was clearly a defining moment in the filly's career and one that pleased her trainer Dick Eaves.
"That was awesome and it wasn't that she's beaten a very good Victorian filly but it was the way she did it that impressed me," Eaves said.
Barynya (-Lombo Anastasia) was driven by who said the filly showed a lot of similarities to Shez Ryleymak, a filly he owned and trained to win just about every juvenile race on the Tasmanian calendar as well as a Group 1 interstate.
"This filly is very smart and I'm sure there is a lot of depth to her - she's untapped," Hillier said.
Sandy Kay () showed good early speed to comfortably hold the front, a position that the connections of Barynya (5) had hoped to occupy.
Lang didn't push his filly and with only five in the race he was allowed to dictate speed and that was pedestrian for the first half of the race, evidenced by the winning mile rate of 2m.04.02s.
Hillier was content to allow Barynya to stay in touch at the rear of the field but when he made his midrace move three-wide, Barynya quickly worked to the death and that's when the race began to seriously unfold.
Lang waited until the home turn to go for his filly but Barynya staid with her and when Hillier finally called on his charge for the supreme effort she dug deep and forged clear halfway up the home straight.
Barynya went on to score comfortably from Sandy Kay with Jazzy Jane a distant third.
The filly was bred by Lyndon and Gail Menagon of Big Park Stud.
The Menagons were thrilled with the win especially as Barynya's dam, Lombo Anastasia, resides at their stud.
Listen to what trainer Dick Eaves had to say about Barynya's Oaks win.
By Peter Staples