Ren Matsumura
2025
| J300Kuching | (continue) | |
| J200Kualalumpur | 3R | |
| J300Nonthaburi | 3R |
2024
| J60Manilacity | [3] | Win |
| J300Wanju | 1R | |
| J100Kawaguchi | Semi | |
| J60Eindhoven | [4] | 2R |
| J60Hillegom | [5] | 2R |
| J60Andong | [3] | Quarter |
| J200Kolkata | 1R | |
| J200Newdelhi | 1R | |
| J100Chandigarh | 1R |
2023
| J60Yamanashi | [1] | Final |
| J100Kawaguchi | [8] | Quarter |
| J100Kualalumpur | 2R | |
| J100Sarawak | Semi |
2022
Nation
JPN
Generation
Born in 2008 (16-17 years old)
World Ranking
Junior World Ranking　242th
Year-end Junior World Ranking
- Year-end 2024 358th
- Year-end 2023 390th
- Year-end 2022 2165th
Match Details
2025 J300Kuching
| W | 1R | Kaigaoge Kang | 6-3 6-2 |
2025 J200Kualalumpur
| W | 1R | Jake Ting Long Hou | 6-1 6-0 |
| W | 2R | Ye Chen | 6-0 7-6 |
| L | 3R | Jake Dembo | 1-6 5-7 |
2025 J300Nonthaburi
| W | 1R | John Bothma | 3-6 6-4 6-0 |
| W | 2R | Duje Markovina | 3-6 6-3 7-6 |
| L | 3R | Penn Charusorn | 6-4 2-6 4-6 |
2024 J60Manilacity
| W | 1R | Fu Wang Choi | 6-3 6-1 |
| W | 2R | Perawat Sukjai | 6-0 6-0 |
| W | QF | Miguel Iglupas | 6-3 7-5 |
| W | SF | Takahiro Kawaguchi | 6-4 7-5 |
| W | F | Xiao-Feng Zhou | 7-6 5-2 |
2024 J300Wanju
| L | 1R | Moobeen Kim | 6-1 4-6 5-7 |
2024 J100Kawaguchi
| W | 1R | Penn Charusorn | 6-3 7-5 |
| W | 2R | Roger Koike | 6-3 6-3 |
| W | QF | Gaku Nayuki | 6-4 6-2 |
| L | SF | Shion Itsusaki | 6-7 3-6 |
2024 J60Eindhoven
| L | 2R | Lenny Galley | 2-6 2-6 |
2024 J60Hillegom
| L | 2R | Andrea Baudel | 4-6 7-5 1-6 |
2024 J60Andong
| W | 1R | Gyeom Do | 6-2 6-2 |
| W | 2R | Min Hyuk Cho | 7-6 6-4 |
| L | QF | Moobeen Kim | 3-6 1-6 |
2024 J200Kolkata
| L | 1R | Aradhya Kshitij | 6-3 3-6 4-6 |
2024 J200Newdelhi
| L | 1R | Kuzma Gomziakov | 4-6 4-6 |
2024 J100Chandigarh
| L | 1R | Rethin Pranav Senthil Kumar | 5-7 4-6 |
2023 J60Yamanashi
| W | 1R | Tatsuki Anjo | 6-2 6-1 |
| W | 2R | Yoshihiro Sakurai | 6-1 6-2 |
| W | QF | Yuya Ando | 6-1 6-3 |
| W | SF | Hikaru Takahashi | 6-4 3-6 10-4 |
| L | F | Hyu Kawanishi | 3-6 0-6 |
2023 J100Kawaguchi
| W | 1R | Jay Lin Gibson | 7-5 6-0 |
| W | 2R | Koshiro Nakamae | 6-4 4-6 6-2 |
| L | QF | Satoru Nakajima | 6-4 4-6 5-7 |
2023 J100Kualalumpur
| W | 1R | Muhammad Farreez Isqandar Abdul Rais | 6-3 6-1 |
| L | 2R | Jarrod Joyce | 5-7 2-6 |
2023 J100Sarawak
| W | 1R | Maximus Zavier Wong | 6-2 6-4 |
| W | 2R | Rethin Pranav Senthil Kumar | 6-0 6-4 |
| W | 3R | Juan Kim | 6-4 7-6 |
| W | QF | Daniel Jovanovski | 6-3 4-6 6-2 |
| L | SF | Bill Chan | 4-6 1-6 |
2022 Ai Sugiyama Cup
| L | 1R | Yuto Miyagawa | 4-6 6-2 2-6 |
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