is a Japanese tennis player. She reached a career-high WTA singles ranking of world No. 132, achieved on 2 February 2026, and a career-high doubles ranking of 344, achieved on 27 April 2025.
Sakatsume made her WTA Tour main-draw debut at the 2022 Championnats de Granby, after entering the singles tournament as a lucky loser, but was defeated by Jasmine Paolini in the first round.
She made her debut for the Japan Billie Jean King Cup team on 13 April 2023 in a tie against Uzbekistan. She beat Sabrina Olimjanova and registered her first BJK Cup win.
Having made it through qualifying, Sakatsume reached the second round at the Japan Women's Open with a win over Alexandra Eala, before losing to third seed Wang Xinyu.
She made her WTA 500 debut at the 2023 Pan Pacific Open as a lucky loser, but lost to Linda Nosková.
As a qualifier, Sakatsume reached her maiden WTA quarterfinal at the 2025 Hong Kong Open, defeating fourth seed Sofia Kenin for her first win against a top-100 ranked player and then overcoming wildcard entrant Eudice Chong, before losing to fifth seed Maya Joint in three sets.
Sakatsume made her Grand Slam debut at the 2026 Australian Open after qualifying for the main draw.
Only main-draw results in WTA Tour, Grand Slam tournaments, Billie Jean King Cup, United Cup, Hopman Cup and Olympic Games are included in winâÂÂloss records.
Current through the 2026 Australian Open.