Rybakina, 27, dropped lone 4 points successful a adjacent flawless show connected service against four-time Grand Slam champion Osaka.
She faced the 28-year-old afloat of confidence, having not dropped a acceptable successful her opening 3 matches astatine the tournament, and took power of the contention successful a ascendant archetypal set.
Reigning Australian Open champion Rybakina opened up a treble interruption implicit Osaka, earlier sealing the acceptable successful conscionable 21 minutes.
Osaka showed greater absorption aboriginal successful the 2nd acceptable but, aft failing to person her lone interruption constituent of the match, Rybakina soon seized power again.
She broke to spell 4-3 up, earlier safely seeing retired the remainder of the match, with Osaka incapable to contend with her opponent's heavy groundstrokes.
Rybakina sealed the lucifer wrong 66 minutes with her seventh ace of a lucifer wherever she deed a full of 29 winners to Osaka's nine.
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