Noritaka Koizumi leads 3 to 1 over 4 singles meetings since 2025. Last meeting on 07/07/2026 at M15 Wuning.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 07/07/2026 | M15 Wuning | Round 1 | hard | Koizumi | |
| 27/05/2026 | M15 Karuizawa | Round 1 | clay | Koizumi | |
| 02/07/2025 | M15 Tokyo | Round 1 | hard | Koizumi | 5-7 3-6 |
| 05/06/2025 | M15 Karuizawa | Round 2 | clay | Kawahashi | 6-3 6-0 |
| hard | Kawahashi 0 - 2 Koizumi |
| clay | Kawahashi 1 - 1 Koizumi |
| 2026 | Kawahashi 0 - 2 Koizumi |
| 2025 | Kawahashi 1 - 1 Koizumi |
119 wins, 82 losses since 2021 (59.2%).
Last matches: D D D D D
27 wins, 27 losses since 2021 (50.0%).
Last matches: D V D V D
Noritaka Koizumi leads 3 to 1 over 4 singles meetings since 2025.
On 07/07/2026, at M15 Wuning (Round 1): Noritaka Koizumi won.