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| 1/8-finals | Kawaguchi N. | Okamura K. | 2:0 (6:3, 6:2) | detalhes | 12.03.2026 | ||
| 1/16-finals | Okamura K. | Costoulas S. | 2:0 (6:4, 7:65) | detalhes | 11.03.2026 | ||
| 1/16-finals | Yuan C. | Okamura K. | 2:0 (6:4, 6:4) | detalhes | 04.03.2026 | ||
| 1/8-finals | Zhu L. | Okamura K. | 2:0 (6:0, 6:1) | detalhes | 05.02.2026 | ||
| 1/16-finals | Okamura K. | Mildren S. | 2:0 (6:4, 6:0) | detalhes | 04.02.2026 | ||
| 1/16-finals | Vekic D. | Okamura K. | 2:0 (6:2, 6:2) | detalhes | 27.01.2026 | ||
| Quarter-finals | Okamura K. | Abe H. | 0:2 (5:7, 2:6) | detalhes | 16.01.2026 | ||
| 1/8-finals | Okamura K. | Kuramochi M. | 2:0 (6:3, 6:4) | detalhes | 15.01.2026 | ||
| 1/16-finals | Zheng W. | Okamura K. | 0:2 (1:6, 3:6) | detalhes | 13.01.2026 | ||
| 1/16-finals | Okamura K. | Abe H. | 0:2 (2:6, 2:6) | detalhes | 06.01.2026 | ||
| 1/16-finals | Astakhova D. | Okamura K. | 2:0 (6:1, 6:2) | detalhes | 18.11.2025 | ||
| Final | Okamura K. | Morvayova V. | 1:2 (6:4, 3:6, 4:6) | detalhes | 26.10.2025 | ||
| Semi-finals | Okamura K. | Guo M. | 2:1 (6:1, 2:6, 6:4) | detalhes | 25.10.2025 | ||
| Semi-finals | Galfi D. | Okamura K. | 2:0 (6:3, 7:67) | detalhes | 13.10.2025 | ||
| Quarter-finals | Jimenez Kasintseva V. | Okamura K. | 2:0 (6:3, 6:1) | detalhes | 03.10.2025 | ||
| 1/8-finals | Lepchenko V. | Okamura K. | 0:2 (1:6, 62:7) | detalhes | 02.10.2025 | ||
| 1/16-finals | Okamura K. | Birrell K. | 2:0 (6:2, 6:4) | detalhes | 30.09.2025 | ||
| Final | Tjen J. | Okamura K. | 2:0 (7:63, 6:2) | detalhes | 28.09.2025 | ||
| Semi-finals | Okamura K. | Inglis M. | 2:0 (6:4, 6:4) | detalhes | 27.09.2025 | ||
| 1/8-finals | Okamura K. | Liang E. S. | 0:2 (5:7, 1:6) | detalhes | 24.09.2025 | ||
| 1/16-finals | Okamura K. | Zheng W. | 2:0 (6:3, 6:3) | detalhes | 22.09.2025 | ||
| Final | Okamura K. | Ponchet J. | 1:2 (6:4, 65:7, 2:6) | detalhes | 14.09.2025 | ||
| Semi-finals | Blinkova A. | Okamura K. | 1:2 (3:6, 7:5, 3:6) | detalhes | 13.09.2025 | ||
| Quarter-finals | Erjavec V. | Okamura K. | 2:0 (6:0, 6:2) | detalhes | 12.09.2025 | ||
| 1/8-finals | Okamura K. | Wei S. | 1:1 RET. (3:6, 7:5, 4:2) | detalhes | 10.09.2025 | ||
| 1/16-finals | Shimizu A. | Okamura K. | 0:2 (1:6, 3:6) | detalhes | 08.09.2025 | ||
| Quarter-finals | Mikulskyte J. | Okamura K. | 2:0 (6:3, 7:5) | detalhes | 19.08.2025 | ||
| 1/8-finals | Swan K. | Okamura K. | 2:0 (6:3, 6:1) | detalhes | 07.08.2025 | ||
| 1/16-finals | Dang Y. | Okamura K. | 0:2 (64:7, 0:6) | detalhes | 06.08.2025 | ||
| Quarter-finals | Okamura K. | Salkova D. | 1:2 (6:4, 3:6, 2:6) | detalhes | 31.07.2025 | ||
| 1/8-finals | Deichmann K. | Okamura K. | 1:2 (6:2, 2:6, 2:6) | detalhes | 30.07.2025 | ||
| 1/16-finals | Palicova B. | Okamura K. | 0:2 (61:7, 5:7) | detalhes | 28.07.2025 | ||
| Semi-finals | Maleckova J. | Okamura K. | 2:1 (6:4, 3:6, 7:5) | detalhes | 19.07.2025 | ||
| Quarter-finals | Juvan K. | Okamura K. | 2:0 (6:2, 6:2) | detalhes | 24.06.2025 | ||
| 1/16-finals | Okamura K. | Naef C. | 0:2 (3:6, 5:7) | detalhes | 10.06.2025 | ||
| Quarter-finals | Ayukawa M./Morisaki K. | Okamura K./Plipuech P. | WO. | detalhes | 12.03.2026 | ||
| 1/8-finals | Okamura K./Plipuech P. | Bai Z./Ma Y. | WO. | detalhes | 11.03.2026 | ||
| Final | Okamura K./Sato N. | da Silva Fick G./McGiffin T. | 2:1 (5:7, 7:5, 14:12) | detalhes | 07.03.2026 | ||
| Semi-finals | Okamura K./Sato N. | Wan I W./Yoshioka K. | 1:0 RET. (7:65, 3:0) | detalhes | 06.03.2026 | ||
| Quarter-finals | Okamura K./Sato N. | Vickery S./Zhang R. | WO. | detalhes | 05.03.2026 | ||
| 1/8-finals | Barry M./Osborne A. | Okamura K./Sato N. | 0:2 (3:6, 4:6) | detalhes | 03.03.2026 | ||
| 1/8-finals | da Silva Fick G./McGiffin T. | Jang S. J./Okamura K. | 2:1 (6:3, 5:7, 18:16) | detalhes | 03.02.2026 | ||
| 1/8-finals | Chong E./Liang E. S. | Okamura K./Plipuech P. | 2:0 (6:3, 6:4) | detalhes | 14.01.2026 | ||
| Quarter-finals | Okamura K./Plipuech P. | Bhosale R./Zheng W. | 0:2 (3:6, 3:6) | detalhes | 08.01.2026 | ||
| 1/8-finals | Okamura K./Plipuech P. | Abe H./Yamazaki I. | 2:1 (6:4, 3:6, 12:10) | detalhes | 07.01.2026 | ||
| Final | Harrison C./Lahey A. | Kuwata H./Okamura K. | 2:0 (6:3, 6:2) | detalhes | 09.08.2025 | ||
| Semi-finals | Cabezas Dominguez E./Sanchez A. S. | Kuwata H./Okamura K. | 0:2 (3:6, 3:6) | detalhes | 09.08.2025 | ||
| Quarter-finals | Kuwata H./Okamura K. | Perez Garcia M. P./Rodriguez V. | 2:0 (6:2, 6:4) | detalhes | 07.08.2025 | ||
| 1/8-finals | Tanguilig C./Verizova E. | Kuwata H./Okamura K. | 0:2 (66:7, 1:6) | detalhes | 06.08.2025 | ||
| 1/8-finals | Okamura K./Ponchet J. | Barnett A./Lechemia E. | 1:2 (3:6, 6:3, 7:10) | detalhes | 21.07.2025 | ||