Japan: W50 Nanao - Singles - Main |
| Semi-finals | Ito A. | Okamura K. | 2:0 (6:2, 6:2) | details | 28.09.2024 |
| Quarter-finals | Okamura K. | Arakawa H. | 2:0 (6:3, 6:4) | details | 27.09.2024 |
| 1/8-finals | Okamura K. | Yamazaki I. | 2:0 (6:3, 6:4) | details | 26.09.2024 |
| 1/16-finals | Okamura K. | Kitahara Y. | 2:0 (6:4, 6:3) | details | 25.09.2024 |
South Korea: Seoul - Singles - Qualification |
| Final | Ruse G. | Okamura K. | 2:1 (6:3, 2:6, 6:2) | details | 15.09.2024 |
| Semi-finals | Chan H-C. | Okamura K. | 0:2 (1:6, 1:6) | details | 14.09.2024 |
Australia: W75 Perth - Singles - Main |
| 1/8-finals | Okamura K. | Imamura S. | 0:2 (2:6, 3:6) | details | 12.09.2024 |
| 1/16-finals | Okamura K. | Arakawa N. | 2:0 (6:3, 6:1) | details | 11.09.2024 |
South Korea: W100 Incheon - Singles - Main |
| 1/8-finals | Okamura K. | Tararudee L. | 1:2 (5:7, 6:4, 2:6) | details | 05.09.2024 |
| 1/16-finals | Park Y. | Okamura K. | 0:2 (2:6, 2:6) | details | 03.09.2024 |
China: W50 Jinan - Singles - Main |
| Quarter-finals | Yao X. | Okamura K. | 2:0 (6:1, 6:1) | details | 30.08.2024 |
| 1/8-finals | Xun F. Y. | Okamura K. | 0:2 (3:6, 67:7) | details | 29.08.2024 |
| 1/16-finals | Cho T. | Okamura K. | 0:2 (4:6, 4:6) | details | 28.08.2024 |
USA: W50 Dallas, TX - Singles - Main |
| 1/16-finals | Okamura K. | Hewitt D. | 0:2 (2:6, 4:6) | details | 24.07.2024 |
Canada: W75+H Granby - Singles - Main |
| 1/16-finals | Okamura K. | Zhu A. | 0:2 (2:6, 4:6) | details | 16.07.2024 |
Thailand: W35 Nakhon Si Thammarat 2 - Singles - Main |
| Final | Cheapchandej P. | Okamura K. | 2:0 (6:2, 6:3) | details | 07.07.2024 |
| Semi-finals | Shimizu E. | Okamura K. | 1:2 (2:6, 6:3, 5:7) | details | 06.07.2024 |
| Quarter-finals | Jeong B. | Okamura K. | 0:2 (0:6, 1:6) | details | 05.07.2024 |
| 1/8-finals | Thamchaiwat B. | Okamura K. | 0:2 (5:7, 1:6) | details | 04.07.2024 |
| 1/16-finals | Ounmuang S. | Okamura K. | 0:2 (1:6, 4:6) | details | 03.07.2024 |
Taiwan: W35 Taipei 2 - Singles - Main |
| Final | Chaudhari V. | Okamura K. | 2:1 (3:6, 7:5, 6:3) | details | 30.06.2024 |
| Semi-finals | Shimizu A. | Okamura K. | 1:2 (2:6, 6:2, 4:6) | details | 29.06.2024 |
| Quarter-finals | Okamura K. | Rioux L. | 2:1 (6:4, 4:6, 6:4) | details | 29.06.2024 |
| 1/8-finals | Okamura K. | Cho I-H. | 2:1 (3:6, 6:2, 6:3) | details | 27.06.2024 |
| 1/16-finals | Okamura K. | Shimizu E. | 2:0 (6:2, 6:0) | details | 26.06.2024 |
Taiwan: W35 Taipei - Singles - Main |
| Final | Sakatsume H. | Okamura K. | 2:0 (6:4, 6:0) | details | 23.06.2024 |
| Semi-finals | Okamura K. | Naklo T. | 2:0 (6:3, 7:60) | details | 22.06.2024 |
| Quarter-finals | Arakawa H. | Okamura K. | 0:2 (1:6, 3:6) | details | 21.06.2024 |
| 1/8-finals | Yamaguchi M. | Okamura K. | 1:2 (6:4, 3:6, 1:6) | details | 20.06.2024 |
| 1/16-finals | Tsao C. Y. | Okamura K. | 1:2 (6:2, 5:7, 4:6) | details | 18.06.2024 |
South Korea: W35 Daegu - Singles - Main |
| 1/16-finals | Matsuda M. | Okamura K. | 2:0 (6:2, 6:0) | details | 05.06.2024 |
South Korea: W35 Changwon - Singles - Main |
| Semi-finals | Okamura K. | Chang H. | 0:2 (3:6, 3:6) | details | 01.06.2024 |
| Quarter-finals | Okamura K. | Kaji H. | 2:0 (6:1, 6:4) | details | 31.05.2024 |
| 1/8-finals | Okamura K. | Sema E. | 2:1 (7:5, 2:6, 7:5) | details | 30.05.2024 |
| 1/16-finals | Okamura K. | Jeong H. G. | 2:0 (6:3, 7:62) | details | 28.05.2024 |
South Korea: W50 Goyang - Singles - Main |
| Quarter-finals | Sato N. | Okamura K. | 2:0 (6:2, 6:3) | details | 24.05.2024 |
| 1/8-finals | Okamura K. | Matsuda M. | 2:1 (3:6, 7:62, 6:2) | details | 23.05.2024 |
| 1/16-finals | Okamura K. | Iatcenko P. | 2:1 (2:6, 6:3, 6:2) | details | 21.05.2024 |
China: W75 Luan - Singles - Main |
| 1/8-finals | Okamura K. | Wang J. | 0:2 (3:6, 4:6) | details | 09.05.2024 |
| 1/16-finals | Okamura K. | Zheng W. | 2:1 (3:6, 6:3, 7:65) | details | 08.05.2024 |
Japan: W100 Gifu - Singles - Main |
| 1/16-finals | Okamura K. | Shimizu E. | 0:2 (4:6, 1:6) | details | 01.05.2024 |
Japan: W100 Tokyo - Singles - Main |
| 1/16-finals | Okamura K. | Inglis M. | 0:2 (4:6, 2:6) | details | 24.04.2024 |
South Korea: W100 Incheon - Doubles - Main |
| 1/8-finals | Gao X./Shi H. | Okamura K./Stevanovic N. | 2:1 (4:6, 6:3, 10:2) | details | 03.09.2024 |
USA: W75 Lexington, KY - Doubles - Main |
| 1/8-finals | Okamura K./Sakatsume H. | Cayetano E./Crawley F. | 0:2 (3:6, 69:7) | details | 30.07.2024 |
USA: W50 Dallas, TX - Doubles - Main |
| 1/8-finals | Ma Y./Okamura K. | Arconada U. M./Scott K. | 1:2 (2:6, 6:4, 8:10) | details | 25.07.2024 |
South Korea: W35 Changwon - Doubles - Main |
| 1/8-finals | Okamura K./Plipuech P. | Shimizu A./Yoshioka K. | 1:2 (6:1, 5:7, 4:10) | details | 29.05.2024 |
| 1/8-finals | Okamura K./Plipuech P. | Gasanova A./Liu F. | CAN. | details | 29.05.2024 |
Japan: W100 Gifu - Doubles - Main |
| Quarter-finals | Kumkhum L./Plipuech P. | Okamura K./Shimizu A. | WO. | details | 03.05.2024 |
| 1/8-finals | Fung S./Hewitt D. | Okamura K./Shimizu A. | 1:2 (4:6, 6:4, 9:11) | details | 02.05.2024 |
Japan: W35 Osaka - Doubles - Main |
| Semi-finals | Arakawa N./Kuramochi M. | Okamura K./Shimizu A. | 2:1 (1:6, 7:63, 10:4) | details | 12.04.2024 |