Skipping junior tournaments, in 2013, Osaka started out on professional satellite as the way Venus and Serena William had done. After only three years, the Women’s Tennis Association selected Osaka as Newcomer of the Year. In March 2018, she won the WTA tour at Indian Wells, California for the first time. Osaka became the first Japanese player to nab a Grand Slam title after winning her idol William at the U.S. Open in September 2018. At the 2019 Australian Open, she came out on top and became the first tennis player since 2001 to win the following major title after her first Grand Slam tittle. That victory also made Osaka become the first Asian player, male or female, to have the world’s No. 1 ranking.
Osaka has always been played under the Japanese flag. Her father believed that the Japan Tennis Association would support more than its U.S. equivalent.
After the Australian Open in 2019, Osaka split from coach Sascha Bajin, who had been with her for her two Grand Slam titles, with no reason announced. Her next coach was Jermaine Jenkins before she had switched to work with Wim Fissette by 2020.
At the 2019 U.S. Open, Osaka invited her defeated opponent Coco Gauff to join her in a post-game interview since she didn’t want the younger player to go off and cry alone, which showed her sportsmanship. Although Osaka didn’t make it past the fourth round of that tournament, she won in Osaka and Beijing later in 2019.
In 2020, after losing to Gauff in the third round of the Australian Open, Osaka is now preparing to represent Japan at the Tokyo Olympics, which was postponed to next year due to the Covid-19 pandemic.
Before a match, Osaka usually listen to music, returning to the same song until she loses.