However, like so many before her, maybe a little too much cockiness was her undoing.
Barty, who was the first Australian woman to be ranked world No 1 since Goolagong Cawley, said overall she was ecstatic at the journey she had been on this year, winning the French Open and getting to the top of the rankings.
Will Barty remain number one?
"It's disappointing right now".
"Wimbledon has been a special tournament that has motivated me throughout my life".
There was a possibility that Barty could lose her number one singles ranking following her early exit, with Karolina Pliskova in line to take over if she reached the final. "I never really thought about the numbers till you said it", said the world No.55. I was sticking to how I wanted to play. "But that's not the case", she said.
A sensational running forehand victor down the line made it 30-30 in the next game but Riske stayed composed and held, then jumped all over Barty's second serve to secure a break of her own only to waste her improved position.
"Today was a great preparation for me going into the Serena match".
Breakout American teenage tennis phenom Cori "Coco" Gauff planned ahead of time what she was going to say to her childhood idol Venus Williams after playing her at Wimbledon.But the 15-year-old tennis star hadn't expected to deliver her prepared remarks as the victor of the match."The night before, I kind of planned out what I..."
She even managed a subtle Annie reference to continue her Wimbledon Disney quote game.
It was a hot run that included many moments of celebration for Barty and her party.
(CNN)Ashleigh Barty's Wimbledon adventure may have ended at the hands of America's Alison Riske Monday, but she's clearly been having some fun off the court.
Hercog then went a break up in the second and looked on course to progress to the fourth round with two match point opportunities. Riske broke for a 5-3 lead in the final set and clinched her win on her first match point when Barty sent a backhand wide.
"She lost the first set and stuck with the plan".
"I'm so excited. I think ultimately, I'm just so proud of myself for the way I handled today's match".
Barbora Strycova came from a set and break down to beat Elise Mertens 4-6, 7-5, 6-2.
She was able to win at Roland Garros, claim 15-straight matches, and reach world no. 1 by keeping things in perspective.
"She's the greatest athlete I think that's ever been on the women's side".
"It was a way for us to enjoy it and try and bring a little bit more energy into press", she said. "It's going to be a huge challenge, but I'm really looking forward to it", she said. "I think it's been a really, really positive couple of months for us".
United States' Alison Riske celebrates defeating Australia's Ashleigh Barty.
"But in saying that, it's also only a tennis match". I've just been ready to battle every day I go out there. If I don't, the sun is still going to come up tomorrow.
They both believe the US Open is where Barty is best suited.
"The most important results will be at the highest-level events such as the grand slams and the premier mandatory events", Kovalchik said.
She also joked of her loss: "There might be a beer or two".
It's a long-standing injury that flared up during her busy European schedule in which she won her debut Grand Slam at the French Open, followed up with a win at Birmingham on grass.