Melbourne - Ashleigh Barty said on Tuesday she was having fun "problem-solving" on court after accelerating her march towards a maiden Australian Open title with a straight-sets masterclass against Jessica Pegula.
The single-minded world number one dismantled the 21st-seeded American 6-2, 6-0 in 63 minutes on Rod Laver Arena to power into the last four at Melbourne Park for only the second time.
She will face the unseeded Madison Keys for a place in Saturday's final after the American, ranked 51, upset French Open champion and fourth seed Barbora Krejcikova 6-3, 6-2.
Keys is into her fifth Grand Slam semi-final and her first in Melbourne since 2015.
🅰️🅱️ ➡️ 🅰️🅾️ QFs!@ashbarty | #AusOpenpic.twitter.com/7F2qPlo0Zp
But she faces a huge task against the top seed who is edging closer to becoming the first Australian woman to win her home Grand Slam since Chris O'Neill in 1978.
Barty is renowned as one of the best tacticians in the game and figuring out what to do in tough moments is a key part of her game.
"To be honest I'm having fun trying to problem solve out on the court, and each and every opponent has been different, each and every opponent has presented me with a different challenge and forced me to use another tool in my toolbox," she said.
"I think being able to do that really well and I have been able to execute, which is sometimes important, you can have all the right ideas but you need to be able to do it under the pump.
"I've been able to do that this week, which has been really exciting. Now we're in with a chance to go out there and play a semi-final at home, couldn't be more pumped and really, really excited."
The not so secret to @ashbarty's success 🤩#AusOpen • #AO2022 pic.twitter.com/kT1zMtd1sO
The current Wimbledon champion has yet to drop a set and has only given up 17 games in her five matches at Melbourne Park.
So dominant has she been that when Amanda Anisimova broke her in the second set in their fourth-round match, it ended an astounding run of 63 consecutive service holds.
That break was a blip, with Pegula not managing to repeat the feat.
Pegula won the first three points and was serving for the opening game at 40-0, but Barty roared back to break when her opponent netted a backhand from the baseline.
She then slammed two aces down in her own opening service game to consolidate.
Pegula got on the board on her own serve and then pushed Barty to deuce four times in her next service game but could not break back.
One more service hold was as good as it got for the American who did not win another game from 2-3.
The Australian pounced again in game seven with Pegula netting a volley then a backhand to give her a double break for 5-2 before serving out the set with her fifth ace.
Barty put away a volley for an immediate break at the start of the second set as a fading Pegula, taking on a world number one for the first time in her career, was bullied around the court.
She insisted the scoreline didn't tell the full story.
"I think the scoreline was a poor indicator of how the match felt, to be completely honest. I felt like Jess forced me to play my best tennis right from the start," she said.
The pair had met once before, at Roland Garros in 2019 when the Australian went on to clinch her first major title.
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AFP