


Shintaro Mochizuki (Japanese: 望月 慎太郎, Mochizuki Shintarō, born 2 June 2003) is a Japanese professional tennis player. He has an ATP career-high singles ranking of world No. 93 on 20 October 2025 and a doubles ranking of No. 371 achieved on 18 October 2021. He is currently the No. 1 Japanese player. Mochizuki became the first Japanese male player in history to win a Grand Slam boys’ singles title at 2019 Wimbledon. Mochizuki achieved a career-high Junior ITF combined ranking of No. 1 on 15 July 2019.
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