 Thailand: Nonthaburi 2 - Singles - Qualification |
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| Semi-finals | Purtseladze S. | Takahashi Y. | 1:2 (6:3, 3:6, 4:6) | details | 05.01.2025 |
 New Caledonia: Noumea - Singles - Main |
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| 1/8-finals | Takahashi Y. | Couacaud E. | 0:2 (3:6, 4:6) | details | 01.01.2025 |
| 1/16-finals | Mannarino A. | Takahashi Y. | 0:2 (3:6, 0:6) | details | 31.12.2024 |
 Japan: Yokkaichi - Singles - Main |
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| 1/16-finals | Takahashi Y. | Sekulic P. | 0:2 (3:6, 2:6) | details | 27.11.2024 |
| Japan: Yokkaichi - Singles - Qualification |
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| Final | Bar Biryukov P. | Takahashi Y. | 0:2 (4:6, 3:6) | details | 25.11.2024 |
| Semi-finals | Tsutsumi R. | Takahashi Y. | 0:2 (63:7, 1:6) | details | 24.11.2024 |
| Japan: Yokohama - Singles - Qualification |
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| Semi-finals | Takahashi Y. | Nakagawa N. | 0:2 (4:6, 4:6) | details | 17.11.2024 |
| Japan: Matsuyama - Singles - Qualification |
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| Final | Ayeni A. | Takahashi Y. | 2:0 (7:5, 6:3) | details | 04.11.2024 |
| Semi-finals | Takahashi Y. | Imamura M. | 2:0 (6:4, 6:1) | details | 03.11.2024 |
 South Korea: Seoul - Singles - Qualification |
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| Semi-finals | Lee D. H. | Takahashi Y. | 2:1 (3:6, 6:3, 7:65) | details | 27.10.2024 |
 Taiwan: Taipei 2 - Singles - Main |
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| 1/16-finals | Vukic A. | Takahashi Y. | 2:0 (6:1, 7:63) | details | 23.10.2024 |
| Taiwan: Taipei 2 - Singles - Qualification |
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| Final | Takahashi Y. | Meng C. | 2:0 (6:4, 6:4) | details | 21.10.2024 |
| Semi-finals | Takahashi Y. | Takamisawa T. | 2:0 (6:0, 6:3) | details | 20.10.2024 |
 China: Shenzhen 2 - Singles - Main |
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| 1/16-finals | Takahashi Y. | Noguchi R. | 0:2 (3:6, 2:6) | details | 15.10.2024 |
| China: Hangzhou - Singles - Main |
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| 1/16-finals | Takahashi Y. | Tseng C. H. | 1:2 (6:4, 61:7, 2:6) | details | 09.10.2024 |
| China: Hangzhou - Singles - Qualification |
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| Final | Tkemaladze Z. | Takahashi Y. | 0:2 (1:6, 5:7) | details | 08.10.2024 |
| Semi-finals | Fancutt T. J. | Takahashi Y. | 0:2 (64:7, 5:7) | details | 07.10.2024 |
| Japan: M25 Takasaki - Singles - Main |
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| Quarter-finals | Saitoh K. | Takahashi Y. | 2:0 (6:3, 6:4) | details | 20.09.2024 |
| 1/8-finals | Matsuda R. | Takahashi Y. | 0:2 (63:7, 62:7) | details | 19.09.2024 |
| 1/16-finals | Tanuma R. | Takahashi Y. | 0:2 (2:6, 2:6) | details | 18.09.2024 |
| China: Guangzhou 2 - Singles - Qualification |
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| Semi-finals | Takahashi Y. | Liu H. | 1:1 RET. (6:2, 64:7, 1:2) | details | 08.09.2024 |
| China: Shanghai - Singles - Qualification |
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| Semi-finals | Takahashi Y. | Sun F. | 1:2 (6:3, 3:6, 0:6) | details | 01.09.2024 |
| China: Zhangjiagang - Singles - Main |
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| 1/8-finals | Svrcina D. | Takahashi Y. | 2:0 (6:2, 6:1) | details | 28.08.2024 |
| 1/16-finals | Takahashi Y. | Polmans M. | 2:0 (7:5, 6:3) | details | 27.08.2024 |
| China: Zhangjiagang - Singles - Qualification |
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| Final | Ayeni A. | Takahashi Y. | 0:2 (3:6, 3:6) | details | 26.08.2024 |
| Semi-finals | Xiao L. | Takahashi Y. | 0:2 (3:6, 2:6) | details | 25.08.2024 |
 USA: Lincoln - Singles - Main |
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| 1/16-finals | Baris O. | Takahashi Y. | 0:0 RET. (1:0) | details | 06.08.2024 |
| USA: Lincoln - Singles - Qualification |
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| Final | Spizzirri E. | Takahashi Y. | 2:0 (7:67, 7:62) | details | 05.08.2024 |
| Semi-finals | Wells C. | Takahashi Y. | 0:2 (0:6, 1:6) | details | 04.08.2024 |
| USA: Lexington - Singles - Qualification |
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| Final | Trotter J. K. | Takahashi Y. | 2:1 (4:6, 6:2, 6:1) | details | 29.07.2024 |
| Semi-finals | Takahashi Y. | Pannu K. | 2:0 (6:2, 6:4) | details | 28.07.2024 |
| Japan: M15 Tokyo 2 - Singles - Main |
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| 1/8-finals | Takahashi Y. | Katayama S. | WO. | details | 11.07.2024 |
| 1/16-finals | Takahashi Y. | Adachi T. | 2:0 (6:1, 6:3) | details | 10.07.2024 |
| Japan: M15 Tokyo - Singles - Main |
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| Quarter-finals | Takahashi Y. | Ozolins K. | 0:2 (5:7, 1:6) | details | 05.07.2024 |
| 1/8-finals | Takahashi Y. | Zhu E. | 2:0 (6:2, 6:3) | details | 04.07.2024 |
| 1/16-finals | Takahashi Y. | Papac T. E. | 2:0 (6:2, 6:2) | details | 03.07.2024 |
| South Korea: M25 Changwon - Singles - Main |
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| 1/8-finals | Takahashi Y. | Imamura M. | 0:2 (4:6, 2:6) | details | 20.06.2024 |
| 1/16-finals | Takahashi Y. | Ryan Ziegann S. | 2:0 (6:0, 6:1) | details | 19.06.2024 |
| USA: Tyler - Singles - Main |
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| 1/16-finals | Holt B. | Takahashi Y. | 2:1 (6:2, 5:7, 6:1) | details | 05.06.2024 |
| USA: Little Rock - Singles - Main |
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| 1/16-finals | Williams C. | Takahashi Y. | 2:1 (6:4, 2:6, 6:4) | details | 28.05.2024 |
| USA: Little Rock - Singles - Qualification |
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| Final | Takahashi Y. | Neff A. | 2:0 (6:2, 6:2) | details | 27.05.2024 |
| Semi-finals | Takahashi Y. | Hach Verdugo H. | 2:0 (6:0, 6:2) | details | 26.05.2024 |
| Taiwan: Taipei - Singles - Qualification |
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| Final | Takahashi Y. | Ayeni A. | 0:2 (5:7, 4:6) | details | 14.05.2024 |
| Semi-finals | Takahashi Y. | Romios M. C. | 2:0 (6:1, 6:1) | details | 12.05.2024 |
| China: Wuxi - Singles - Qualification |
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| Final | Takahashi Y. | Sun F. | 0:2 (3:6, 63:7) | details | 06.05.2024 |
| Semi-finals | Ramanathan R. | Takahashi Y. | 0:2 (63:7, 5:7) | details | 05.05.2024 |
| South Korea: Gwangju - Singles - Qualification |
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| Final | Echargui M. | Takahashi Y. | 2:0 (6:4, 6:2) | details | 15.04.2024 |
| Semi-finals | Takahashi Y. | Haliak M. | 2:0 (6:1, 6:1) | details | 14.04.2024 |
 Portugal: M25 Loule - Singles - Main |
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| 1/16-finals | Added D. | Takahashi Y. | 2:1 (3:6, 6:3, 6:4) | details | 20.03.2024 |