Eckstein is trained by Kurt Goldman, who has enjoyed previous success with I Am Invincible having prepared brilliant speedster Hellbent before he was transferred to Darren Weir.
She skipped through the heavy conditions after trailing the speed in the run and surged clear to win the 1300 metre contest by a long neck over seasoned stakes performer Egyptian Symbol.
"She's going good," winning jockey Corey Brown told Sky Racing.
"She had an ideal run today.
"She drew inside which wasn't ideal but she skipped back to the inside on straightening and when she got there she floated about a bit.
"If she had something more to focus on I reckon she would have won a lot better but it was still a very good win in those testing conditions."
Goldman described Eckstein's win as "strong, toughing it out against those
older mares'" and said her main winter aim remains the Group I
Tattersall's Tiara, a 1400 metre set weights race for fillies and mares on June
24."The plan was always to go to the Dane Ripper and onto the Tiara and it was good to see her win like that on this track today," he said.
"Those upcoming races look the logical targets after today's win."
Eckstein was a $165,000 Magic Millions purchase from the Vinery Stud draft for Australian Bloodstock and has won five of 10 starts earning over $524,000 in prizemoney.
She is the best of three winners from unraced Choisir mare Comrie, a grand-daughter of multiple Group I winner Canny Lass from the family of Group I stars such as Sepoy, Canny Lad, Camarena and Guelph.
Eckstein is one of 11 stakes-winners this season for I am Invincible, who will cover another full book this spring at Yarraman Park at a fee of $110,000.
