SYDNEY: Evonne Goolagong Cawley Sunday said she couldn't be more proud of "little sister" Ashleigh Barty after the Australian won Wimbledon exactly 50 years after her indigenous compatriot achieved the feat.

The 25-year-old clinched her maiden crown at the All England Club by beating Karolina Pliskova 6-3, 6-7 (4/7), 6-3 on Saturday, adding to the French Open title she won in 2019.

Her victory came a half-century after her "friend and mentor" first triumphed on the grass courts.

Barty wore a dress inspired by the one Cawley sported in the 1971 final, and the 69-year-old was overcome with emotion watching her win.

"I'm just so very proud of Ash, the way she handles herself not just on the court but off the court too," said seven-time Grand Slam singles champion Cawley, who won Wimbledon a second time in 1980.

"Ash to me is like a little sister and part of my family. I think we treat each other that way.

"I was just so chuffed when she wore that dress ... wasn't that lovely. I said to her 'if it brings you luck, great, because it bought me luck'. She's amazing."

Barty spoke with Cawley prior to The Championships and said she was a role model to her.

"I think she has been iconic in paving a way for young indigenous youth to believe in their dreams and to chase their dream," said the world number one, who has Aboriginal heritage on her father's side, after winning.

"She's done exactly that for me as well. Her legacy off the court is incredible."

Cawley said one of the last messages she sent Barty was "dreams do come true, they came true for me".

"All the way through (the final) I sort of had this feeling that she was going to win, this is her time. Somebody up there is looking down on her."

Barty's parents Josie and Rob watched their daughter lift the trophy from Australia and said they were ecstatic. "I'm just proud of the way she treats everybody, she's still the same person regardless of the tennis," said her mum.