The filly was drawn wide and showed her ability with a strong finishing effort to go under by a neck.
Devine Factor has $14,350 prize money and will need to win a metropolitan race and hope some of the other higher money earners drop out if she is to make the Millions field.
Costa has had a big opinion of Devine Factor since she showed her talent to win two of her three barrier trials.
He will now send her into the two-year-old race at the Gold Coast on January 5, a week before Magic Millions day.
“I don't think she is a genuine 1000 metre horse and she will be better at 1200,” Costa said.
“I think she deserves a chance in the Millions and it is just a matter of getting enough prize money.”
Costa paid $65,000 for Devine Factor at the Magic Millions Sale this year and she is at $11 to win the Classic.