The world No.1 needed less than an hour and a half to beat her opponent 6-3 7-6 as the Australian aimed for her second Grand Slam title.
2018 Wimbledon winner Kerber looked on the right track at match level but was emphatically shattered by love as she served for the second set.
There were nerves from Barty as she tried to close the game, needing four match points to finally take out her relentless opponent after leading 6-0 in the tiebreaker.
“It’s amazing,” Barty said after the game. “It’s a game of tennis almost as good as the one I will ever play and Angie really got the best of me today. I am incredibly proud of myself and my team and now I am fortunate enough to live on Saturday. a childhood dreaming.
“You have to take the trip and all the opportunities I have to do with the people I love and help me be the best that I can be. It’s about coming here and having fun. Playing in front of this. crowd and on a beautiful court – there is nothing better.
“I’ve had ups and downs and everything on this trip. There’s a lot that got to this point and playing the final at Wimbledon on Saturday will be the best thing ever.”
Barty, who has yet to lose a set at these championships, bet on a clinic of powerful hitting mixed with soft touches around the net and his well-balanced game proved too much for his opponent.
Kerber, a three-time Grand Slam winner, seeded 25th for this tournament, kept the game tight throughout and there was only one break of serve in the first as Barty stole the lead.
Barty will face Karolina Pliskova in Saturday’s final after the Czech beat Aryna Sabalenka 5-7 6-4 6-4 in a thriller at Wimbledon.
Both players were in their first semifinal at Wimbledon, but there was no sign of nervousness as the two heavy hitters traded fierce rallies from the start.
Pliskova’s serve had seemed compelling from the start, but a double fault on the 30-40 stop surprisingly gave Sabalenka the first set.
Still so calm and serene on the court, Pliskova looked somewhat dejected as she painfully returned to her chair, perhaps taken aback by how the scenery had suddenly slipped out of her mind.
However, she certainly didn’t show any signs of stewing over her disappointment and came out early in the second set on a mission.
Both of these players are known for their powerful shots on the ground but, as the quality of tennis continued to improve, they both displayed remarkable finesse around the net, Pliskova in particular showed skill in win incredible back-to-back trades.
The Czech finally got the serve break her game deserved in game five of the second set and eventually managed to eliminate the rest of the set to tie the game.
Pliskova started the third set in a similar vein, smashing Sabalenka in her first serve game; the Belarusian, who is certainly more lively on the court than her opponent, started showing some frustration for the first time.
As Pliskova served for the game at 30-15, Sabalenka hit a ball towards the baseline which was canceled by the linesman. Sabalenka chose not to challenge which turned out to be a mistake as the ball had actually reached the line.
This gave Pliskova match point, which she converted on the first attempt with another ace to reserve her place only for her second Grand Slam final, where she hopes to do better than she did in the final. of the loss to Kerber at the US Open in 2016.
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