That's 49 minutes on Rod Laver for a first-round win against German player (and Williams' next-door neighbor) Tatjana Maria and 70 minutes to dispatch Eugenie Bouchard 6-2, 6-2 in the second round Thursday night.
No problem. Seeking her eighth title at Melbourne Park and 24th Grand Slam singles trophy overall, Williams opened as well as can be, and closed rather well, too, grabbing 13 of the initial 17 points, and 20 of the closing 24, to put together a 6-2, 6-2 victory over 2014 Wimbledon runner-up Bouchard.
In her on-court interview following the match, Williams said: "It wasn't an easy match tonight - Genie has been to the finals of Wimbledon and the semis of other slams". I've always been told that they grow up so fast, so I wanted to be able to take that time and say I spent it with her.
Osaka's victory was more straightforward as she defeated Tamara Zidansek 6-2, 6-4.
"She won a point". She's made it this far.
BC-TEN-Australian Open-Serena Wins, 466Strong start, finish lift Serena past Bouchard in AustraliaAP Photo MEL545, MEL548, MEL555, MEL569Eds: With AP Photos.
The list of Grand Slam champions, former No. 1s and next-big-things who have debuted and departed, or simply slid into mediocrity, while Williams has added to her Grand Slam title count, is long and stunning.
However, she was wary of Bouchard before their showdown.
Ukraine's Dayana Yastremska, ranked 59th, awaits her in the third round.
Previously, when she opted for the catsuit last summer, she said, "I feel like a warrior in it, like a warrior princess, a queen from Wakanda maybe". According to Williams, the body-hugging suit that was also designed by Nike helped her prevent life-threatening blood clots, that she had much trouble with after she gave birth to her daughter, Alexis Olympia Ohanian Jr.
"Definitely still concerned", she said on Tuesday.
Halep looked to be cruising early on, but had a mid-match wobble as she dropped the second set to America's Sofia Kenin via a tiebreaker before eventually battling through to win 6-3, 6-7 (5-7), 6-4. So it's just something I just have to do for pretty much probably the rest of my career, we'll see.