Shintaro Mochizuki

Shintaro Mochizuki
Mochizuki at the 2023 French Open
Country (sports) Japan
ResidenceBradenton, Florida, United States
Born (2003-06-02) 2 June 2003
Kawasaki, Japan
Height1.75 m (5 ft 9 in)
Turned pro2019
PlaysRight-handed (two-handed backhand)
CoachDavide Sanguinetti
Prize moneyUS $ 931,274
Singles
Career record3–19
Career titles0
Highest rankingNo. 129 (6 November 2023)
Current rankingNo. 164 (16 June 2025)
Grand Slam singles results
Australian Open1R (2024)
French Open1R (2024)
Wimbledon1R (2023)
US OpenQ3 (2024)
Doubles
Career record1–3
Career titles0
Highest rankingNo. 371 (18 October 2021)
Current rankingNo. 445 (16 June 2025)
Last updated on: 16 June 2025.

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. 129 achieved on 6 November 2023 and a doubles ranking of No. 371 achieved on 18 October 2021. He is currently the No. 4 Japanese player. Mochizuki became the first Japanese male player in history to win a Grand Slam boys’ singles title at the 2019 Wimbledon Championships. As a teen, Mochizuki achieved a career-high ITF junior combined ranking of No. 1 on 15 July 2019.