Melbourne – Japan Naomi Osaka fought in front of the Czech eighth seed Petra Kvitova 7-6 (7/2), 5-7, 6-4 first to win Australian Open crown on Saturday and become the new world # 1.
The Fourth Champion and the US Open champion made two Grand Slam titles in a row after a game of 2 hours 27 minutes.
The hard victory forced Osaka to become the first Asian man or woman to hold the highest ranking in the world, taking over from Romania, Simona Halep.
Slowing Osaka almost broke into hopes for the title with one hand on the trophy when he failed to turn three points in the championship when he reached 5-3 in the second set.
Kvitova, who was never called, won four consecutive games to impose a decisive set before Osaka finished with a decisive break at the start of the third.
The Japanese youth fell on a knee on a party, bowed his head after his epic victory, when Melbourne Park burst into loud calls.
This was a remarkable contrast to her first Slam victory last year when Osaka shouted when the boss rang around Flushing Meadows after the loss of finalist Serena Williams in court.
This time Osaka wept with tears with joy and smiled as she became the youngest woman to win the biggest specialists after Martina Hingis in 1998 and the youngest number after Carolyn Wozniacki in 2010.
Her performance confirms her status as a leading light in the new generation of tennis.
Forecasts for a slalom between two of the biggest players of the game proved to be accurate, as Kvitova hit 16 of the 14's in Osaka in the first set.
The two had never met before, and Osaka initially tried to unlock the long left-handed servicemen, while Kvitova sometimes could not cope with the powerful returns of his opponent.
The Czechs mixed their game with fallen shocks and tempo changes, but missed three chances for a break in the sixth game.
Keeping up with the set, Kvitova saved two points to put on a tie-break that Osaka escaped 7-2 when he finally appeared to read about Kvitova's service.
This is the first set that the Czech Republic has allowed throughout the tournament.
Kvitova regrouped and kept its hopes with the first pause of the game to raise 2-0 in the second, after following Osaka's second service.
Osaka was disappointed, but he did not panic, winning three points in the next match, defeating Kvitova's double error, which she made with a bad blow to set the set up.
Osaka, who entered the match with a record to win 59 games after the first set, broke again to take control after Kvitova's percentage of mistakes had risen.
Osaka brought three points to the championship, but the Czech Republic saved them all, forcing Osaka to serve for the title.
Nerves caught when Osaka allowed a break to make 5-5, crashing the ball into the ground and putting his hands on his ears.
She was shaken even more, after losing a challenge in the next, picking up a break point with a crossed backhand, but she could not stop Kvitova.
The Czech Republic broke again to take advantage of its inertia with its fourth consecutive game claiming the set after Osaka left the yard with a towel covered with a head.
She regained her coolness and came out firing in the third, supporting and cutting a clean winner after backhand after another double mistake of Kvitova, which provoked third point in the third match.
She still had to see an opportunity to interrupt Kvitova in the next, but to behave comfortably, her mental demons to lie down.
Kvitova would not surrender, saving three rest points before he again forced Osaka to take her out. Osaka succeeded in making the second attempt for a certain victory.
13th day results of the Australian Open on Saturday:
Naomi Osaka (JPN x4) bt Petra Kvitova (CZE x8) 7-6 (7/2), 5-7, 6-4
Barbora Kraichikova (CZE) / Radjev Ram (USA x3) bt Astra Sharma / John-Patrick Smith (AUS) 7-6 (7/3), 6-1