Noritaka Koizumi
2020
| J5 MATSUYAMA-2 | [1] | 2R |
| J5 YAMANASHI-2 | [1] | Final |
| J1 SARAWAK | 2R | |
| J1 NONTHABURI | 2R | |
| J3 AUCKLAND | 1R | |
| J4 CHRISTCHURCH | [9] | Final |
| J3 SAITAMA | 1R |
Nation
JPN
Age
22 years old (born in 2003)
World Ranking
ATP Ranking　1684th
Year-end Junior World Ranking
- Year-end 2020 287th
- Year-end 2019 759th
- Year-end 2018 1069th
Match Details
2020 J5 MATSUYAMA-2
| W | 1R | Shion Motoyama | 6-2 6-3 |
| L | 2R | Hayato Matsuoka | 6-2 1-6 2-6 |
2020 J5 YAMANASHI-2
| W | 1R | Satoru Nakajima | 7-5 6-2 |
| W | 2R | Roshu Fujioka | 6-2 6-1 |
| W | QF | Yua Taka | 6-1 6-3 |
| W | SF | Yuma Daijima | 7-5 6-2 |
| L | F | Lennon Roark Jones | 3-6 6-2 6-7 |
2020 J1 SARAWAK
| W | 1R | Jack Loutit | 7-6 7-6 |
| L | 2R | Chen Dong | 6-4 5-7 3-6 |
2020 J1 NONTHABURI
| W | 1R | Tarm Rojanasoonthon | 6-2 6-4 |
| L | 2R | Chen Dong | 2-6 3-6 |
2020 J3 AUCKLAND
| L | 1R | Anton Shepp | 1-6 2-6 |
2020 J4 CHRISTCHURCH
| W | 1R | Zachary Viiala | 6-2 6-4 |
| W | 2R | Taj Hibbert | 6-1 6-1 |
| W | 3R | Clement Mainguy | 6-4 6-2 |
| W | QF | Darcy Nicholls | 7-5 3-6 6-0 |
| W | SF | Patrick Joss | 6-7 6-3 6-2 |
| L | F | Enzo Aguiard | 4-6 0-6 |
2020 J3 SAITAMA
| L | 1R | Hikaru Takeda | 6-7 6-3 3-6 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 10221, Number of registered players: 6,492, Number of registered results: 376,551