Shintaro Mochizuki
2019
| Us Open Junior | [1] | 2R |
| Wimbledon Junior | [8] | Win |
| Roland Garros Junior | Semi |
Nation
JPN
Age
21 years old (born in 2003)
World Ranking
ATP Ranking　153th
Year-end Junior World Ranking
- Year-end 2020 4th
- Year-end 2019 4th
- Year-end 2018 122th
Match Details
2019 Us Open Junior
| W | 1R | Flavio Cobolli | 2-6 6-3 6-4 |
| L | 2R | Alejo Lorenzo Lingua Lavallen | 6-4 6-7 2-6 |
2019 Wimbledon Junior
| W | 1R | Valentin Royer | 3-6 6-3 8-6 |
| W | 2R | Roman Andres Burruchaga | 7-5 7-6 |
| W | 3R | Arthur Fery | 6-3 6-3 |
| W | QF | Anton Matusevich | 6-3 6-3 |
| W | SF | Martin Damm | 6-1 0-6 10-8 |
| W | F | Carlos Gimeno Valero | 6-3 6-2 |
2019 Roland Garros Junior
| W | 1R | Sergey Fomin | 6-4 2-6 7-5 |
| W | 2R | Bu Yunchaokete | 6-2 6-1 |
| W | 3R | Pablo Llamas Ruiz | 7-5 6-4 |
| W | QF | Flavio Cobolli | 6-1 6-2 |
| L | SF | Toby Kodat | 3-6 4-6 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 5774, Number of registered players: 3,011, Number of registered results: 222,093