Barty takes a narrow 2-1 head-to-head record lead over Collins stepping into their showdown on Saturday.
The 28-year-old American will be contesting her maiden Grand Slam final, with her previous best result at a major coming in Melbourne three years ago when she made it to the semis on her tournament debut.
“She's an exceptional ball-striker. She's someone who stands on the baseline and can hit all spots of the court from any position. I think the challenge is going to be trying to get her off-balance,” said Barty of her final opponent.
An unconventional path
Collins is a strong character on the court and off it. Just nine months ago, she underwent surgery for endometriosis, a condition she waited a long time to be properly diagnosed with.
A cyst the size of a tennis ball was removed from her ovary and she was back competing at a Slam the following month.
Unlike Barty, who was a tennis prodigy that won Wimbledon juniors at 15 and was ranked No.2 in the world junior rankings, Collins had an unorthodox route to the top of the game.