Naomi Osaka Named the Second Highest-Paid Female Athlete . According to ‘Forbes,’ Naomi Osaka earned a total of $24.3 million over the last year. Osaka was only out-earned by fellow tennis veteran Serena Williams, who pulled in $29.2 million, . making her the world’s highest-paid female athlete for the fourth year in a row. . An estimated $16 million of Osaka’s earnings came from endorsements with MasterCard, Nissan, Procter & Gamble and All Nippon Airways. The remaining $8.3 million came from her win over Williams in the 2018 U.S. Open championship, . as well as her victory over Petra Kvitová in the Australian Open championship in 2019. . Both Osaka and Williams earned more than twice as much as Angelique Kerber, the third-highest-paid female athlete, who pulled in $11.8 million. .
