 Japan: M25 Takasaki - Singles - Main |
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| 1/16-finals | Imai S. | Ogura K. | CAN. | details | 18.09.2024 |
| Japan: M25 Sapporo 2 - Singles - Main |
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| Quarter-finals | Kumasaka T. | Imai S. | 2:1 (2:6, 6:2, 6:3) | details | 13.09.2024 |
| 1/8-finals | Saitoh K. | Imai S. | 0:2 (2:6, 66:7) | details | 12.09.2024 |
| 1/16-finals | Sakagawa H. | Imai S. | 0:2 (4:6, 4:6) | details | 11.09.2024 |
| Japan: M25 Sapporo - Singles - Main |
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| 1/8-finals | Kawahashi Y. | Imai S. | 2:1 (1:6, 7:64, 6:1) | details | 05.09.2024 |
| 1/16-finals | Nishiwaki K. | Imai S. | 1:2 (4:6, 6:3, 5:7) | details | 04.09.2024 |
 Indonesia: M15 Bali - Singles - Main |
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| Quarter-finals | Castelnuovo L. | Imai S. | 2:0 (7:63, 6:3) | details | 30.08.2024 |
| 1/8-finals | Aguiard E. | Imai S. | 1:2 (4:6, 6:3, 1:6) | details | 29.08.2024 |
| 1/16-finals | Lorusso L. | Imai S. | 0:2 (66:7, 5:7) | details | 28.08.2024 |
| Japan: M15 Tokyo 2 - Singles - Main |
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| Final | Imai S. | Shin W. | 2:0 (6:4, 6:4) | details | 14.07.2024 |
| Semi-finals | Tanuma R. | Imai S. | 0:2 (3:6, 5:7) | details | 13.07.2024 |
| Quarter-finals | Katayama S. | Imai S. | 0:2 (4:6, 2:6) | details | 12.07.2024 |
| 1/8-finals | Tokuda R. | Imai S. | 0:2 (3:6, 3:6) | details | 11.07.2024 |
| 1/16-finals | Mochizuki Y. | Imai S. | 0:2 (2:6, 2:6) | details | 10.07.2024 |
| Japan: M15 Tokyo - Singles - Main |
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| 1/16-finals | Ozolins K. | Imai S. | 2:0 (6:3, 7:5) | details | 03.07.2024 |
 Hong Kong: M15 Hong Kong 2 - Singles - Main |
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| Final | Delaney Ja. | Imai S. | 0:2 (4:6, 4:6) | details | 23.06.2024 |
| Semi-finals | Imai S. | Chanta T. | 2:0 (6:4, 6:2) | details | 22.06.2024 |
| Quarter-finals | Samrej K. | Imai S. | 0:2 (62:7, 1:6) | details | 21.06.2024 |
| 1/8-finals | Suzuki K. | Imai S. | 0:2 (4:6, 3:6) | details | 20.06.2024 |
| 1/16-finals | Bhat A. P. | Imai S. | 0:1 RET. (0:6, 0:3) | details | 19.06.2024 |
 USA: Tyler - Singles - Qualification |
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| Semi-finals | Bouzige M. | Imai S. | 2:1 (6:4, 1:6, 6:4) | details | 02.06.2024 |
| USA: Little Rock - Singles - Qualification |
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| Semi-finals | Quan R. | Imai S. | 2:1 (4:6, 6:4, 6:2) | details | 26.05.2024 |
 Taiwan: Taipei - Singles - Qualification |
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| Semi-finals | Nam Ji S. | Imai S. | 2:1 (2:6, 6:3, 6:3) | details | 12.05.2024 |
 United Kingdom: M25 Nottingham 2 - Singles - Main |
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| 1/8-finals | Mott B. | Imai S. | 2:1 (6:0, 64:7, 6:2) | details | 02.05.2024 |
| 1/16-finals | Little D. | Imai S. | 0:2 (4:6, 4:6) | details | 01.05.2024 |
| United Kingdom: M25 Nottingham - Singles - Main |
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| 1/8-finals | Imai S. | Mott B. | 1:2 (6:4, 5:7, 4:6) | details | 25.04.2024 |
| 1/16-finals | Pawelski M. | Imai S. | 1:2 (4:6, 6:3, 3:6) | details | 24.04.2024 |
| Japan: M15 Kashiwa - Singles - Main |
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| Quarter-finals | Fukuda S. | Imai S. | 2:0 (6:2, 6:0) | details | 05.04.2024 |
| 1/8-finals | Imai S. | Vithoontien L. | 2:0 (6:3, 6:3) | details | 04.04.2024 |
| 1/16-finals | Isomura K. | Imai S. | 0:2 (3:6, 2:6) | details | 02.04.2024 |
 Australia: M25 Swan Hill - Singles - Main |
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| Semi-finals | Imai S. | Noguchi R. | 1:2 (6:3, 66:7, 4:6) | details | 23.03.2024 |
| Quarter-finals | Ochi M. | Imai S. | 0:2 (60:7, 1:6) | details | 22.03.2024 |
| 1/8-finals | Naumovski M. | Imai S. | 1:2 (5:7, 6:3, 65:7) | details | 21.03.2024 |
| 1/16-finals | Imai S. | Moriya H. | 2:1 (4:6, 7:5, 6:3) | details | 19.03.2024 |
| Australia: M25 Mildura - Singles - Main |
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| 1/16-finals | Marinkov P. | Imai S. | 2:1 (6:3, 64:7, 6:3) | details | 12.03.2024 |
| Australia: Burnie 2 - Singles - Qualification |
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| Semi-finals | Klintcharov A. | Imai S. | 2:0 (6:3, 6:4) | details | 04.02.2024 |
| Semi-finals | Romios M. C. | Imai S. | CAN. | details | 04.02.2024 |
| Australia: Burnie - Singles - Main |
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| Semi-finals | Jasika O. | Imai S. | 2:0 (7:5, 6:3) | details | 03.02.2024 |
| Japan: M25 Sapporo - Doubles - Main |
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| Quarter-finals | Ogura K./Thompkins J. | Imai S./Sumizawa D. | 2:0 (6:2, 6:3) | details | 05.09.2024 |
| 1/8-finals | Imai S./Sumizawa D. | Saitoh K./Tajima N. | 2:1 (3:6, 6:3, 10:6) | details | 04.09.2024 |
| Indonesia: M15 Bali - Doubles - Main |
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| Final | Colson T./Loof T. | Bouzige M./Imai S. | 2:0 (6:4, 6:3) | details | 31.08.2024 |
| Semi-finals | Bouzige M./Imai S. | Barki N. A./Rungkat C. | 2:0 (6:3, 6:2) | details | 30.08.2024 |
| Quarter-finals | Chen Y./Ryan Ziegann S. | Bouzige M./Imai S. | 0:2 (1:6, 3:6) | details | 29.08.2024 |
| 1/8-finals | Crowther C./Genier T. | Bouzige M./Imai S. | 0:2 (3:6, 2:6) | details | 27.08.2024 |
| USA: Tyler - Doubles - Main |
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| 1/8-finals | Hsu Y. H./Shimizu Y. | Hong S. C./Imai S. | 2:0 (7:5, 6:4) | details | 05.06.2024 |
| United Kingdom: M25 Nottingham - Doubles - Main |
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| 1/8-finals | Broom C./Little D. | Hulme M./Imai S. | 2:0 (6:4, 6:3) | details | 23.04.2024 |
| Australia: M25 Mildura - Doubles - Main |
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| 1/8-finals | Imai S./Noguchi R. | Delaney Ja./Saville L. | 1:2 (7:63, 5:7, 8:10) | details | 13.03.2024 |
| Australia: Burnie 2 - Doubles - Main |
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| Quarter-finals | Ellis B./Puttergill C. | Imai S./Moriya H. | 2:0 (6:1, 6:1) | details | 08.02.2024 |
| 1/8-finals | Ichikawa T./Watanabe S. | Imai S./Moriya H. | 1:2 (6:3, 3:6, 8:10) | details | 06.02.2024 |
| Australia: Burnie - Doubles - Main |
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| Semi-finals | Imai S./Uchiyama Y. | Schoolkate T./Walton A. | 1:2 (7:5, 2:6, 7:10) | details | 02.02.2024 |