Guam: M15 Harmon - Doubles - Main |
| 1/8-finals | Kawahashi Y./Sueoka Y. | Arcon A./Sim S. | 1:2 (2:6, 6:3, 5:10) | details | 10.06.2025 |
Japan: M15 Karuizawa - Doubles - Main |
| Quarter-finals | Kawahashi Y./Noguchi M. | Kono Y./Tanaka Y. | 0:2 (65:7, 3:6) | details | 06.06.2025 |
| 1/8-finals | Kawahashi Y./Noguchi M. | Karatsu Y./Tachi R. | 2:0 (6:4, 6:1) | details | 05.06.2025 |
| 1/8-finals | Kawahashi Y./Noguchi M. | Karigyo T./Koizumi N. | CAN. | details | 05.06.2025 |
Japan: M15 Osaka 2 - Doubles - Main |
| 1/8-finals | Kawachi K./Tokuda R. | Inui Y./Kawahashi Y. | 2:0 (6:2, 6:4) | details | 22.04.2025 |
Japan: M15 Osaka - Doubles - Main |
| Quarter-finals | Hazawa S./Kawahashi Y. | Katayama S./Kono Y. | 1:2 (2:6, 6:4, 9:11) | details | 18.04.2025 |
| 1/8-finals | Hazawa S./Kawahashi Y. | Marinkov P./Roh H. | 2:0 (6:4, 6:2) | details | 17.04.2025 |
| 1/8-finals | Hazawa S./Kawahashi Y. | Matsumura R./Shibano K. | CAN. | details | 17.04.2025 |
China: M15 Luan - Doubles - Main |
| 1/8-finals | Lu P./Xiao L. | Jang Y./Kawahashi Y. | 2:0 (6:2, 7:67) | details | 08.04.2025 |
Japan: M15 Nishi-Tokyo - Doubles - Main |
| Semi-finals | Nam Ji S./Uesugi K. | Kawahashi Y./Shiraishi H. | 2:0 (6:4, 7:5) | details | 21.03.2025 |
| Quarter-finals | Kawahashi Y./Shiraishi H. | Lee K./Wang K. | 2:0 (6:1, 6:4) | details | 20.03.2025 |
| 1/8-finals | Kawahashi Y./Shiraishi H. | Benson M./Matsumura R. | 2:0 (6:2, 6:4) | details | 18.03.2025 |
Japan: M15 Hinode - Doubles - Main |
| 1/8-finals | Kawahashi Y./Ochi M. | Oh Chan-Yeong/Park S. | CAN. | details | 12.03.2025 |
China: M15 Maanshan 2 - Doubles - Main |
| 1/8-finals | Kawahashi Y./Masabayashi T. | Sumizawa D./Takahashi Y. | 1:2 (6:1, 2:6, 7:10) | details | 04.03.2025 |
China: M15 Maanshan - Doubles - Main |
| Final | Jeong Y./Kawahashi Y. | Haliak M./Lo Y. J. | 2:0 (6:2, 6:1) | details | 01.03.2025 |
| Semi-finals | Masabayashi T./Sumizawa D. | Jeong Y./Kawahashi Y. | 1:2 (4:6, 6:3, 6:10) | details | 28.02.2025 |
| Quarter-finals | Jeong Y./Kawahashi Y. | Sun Qian/Tang S. | 2:0 (7:63, 6:4) | details | 27.02.2025 |
| 1/8-finals | Jeong Y./Kawahashi Y. | Castelnuovo L./Chanta T. | 2:0 (6:1, 7:65) | details | 26.02.2025 |
India: M25 Chennai - Doubles - Main |
| Semi-finals | Eqbal I./Shah A. | Kawahashi Y./Matsuda R. | 2:1 (6:2, 63:7, 14:12) | details | 17.01.2025 |
| Quarter-finals | Banthia S./Vardhan V. | Kawahashi Y./Matsuda R. | 0:2 (4:6, 4:6) | details | 16.01.2025 |
| 1/8-finals | Somani P./Sureshkumar M. | Kawahashi Y./Matsuda R. | 0:2 (63:7, 4:6) | details | 14.01.2025 |
Egypt: M15 Sharm ElSheikh 17 - Doubles - Main |
| Quarter-finals | Blazka D./Gengel M. | Kawahashi Y./Kikuchi Y. | 0:0 RET. (3:1) | details | 21.11.2024 |
| 1/8-finals | Molder M./Ojakaar O. | Kawahashi Y./Kikuchi Y. | 0:2 (5:7, 5:7) | details | 19.11.2024 |