Hikaru Shiraishi leads 2 to 1 over 3 singles meetings since 2025. Last meeting on 31/10/2026 at M15 Yanagawa City.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 31/10/2026 | M15 Yanagawa City | Semi-final | hard | Shiraishi | 6-3 6-3 |
| 06/06/2025 | M15 Karuizawa | Quarter-final | clay | Oki | 6-4 7-6(5) |
| 03/04/2025 | M15 Kashiwa | Round 2 | hard | Shiraishi | 6-2 6-2 |
| hard | Shiraishi 2 - 0 Oki |
| clay | Shiraishi 0 - 1 Oki |
| 2026 | Shiraishi 1 - 0 Oki |
| 2025 | Shiraishi 1 - 1 Oki |
182 wins, 98 losses since 2021 (65.0%).
Last matches: D V V V V
53 wins, 45 losses since 2021 (54.1%).
Last matches: D V V V D
Hikaru Shiraishi leads 2 to 1 over 3 singles meetings since 2025.
On 31/10/2026, at M15 Yanagawa City (Semi-final): Hikaru Shiraishi won 6-3 6-3.