 Tunisia: W35 Hammamet 6 - Singles - Main |
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| 1/16-finals | Sakatsume H. | Compuesto B. | 2:0 (6:0, 6:1) | details | 23.04.2024 |
| Tunisia: W35 Hammamet 5 - Singles - Main |
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| 1/16-finals | Sakatsume H. | Helgo M. | 0:2 (4:6, 1:6) | details | 17.04.2024 |
 France: W75 Croissy-Beaubourg - Singles - Main |
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| 1/16-finals | Sakatsume H. | Rodionova Ar. | 1:2 (6:1, 2:6, 3:6) | details | 26.03.2024 |
 Slovenia: W75 Maribor - Singles - Main |
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| 1/8-finals | Sakatsume H. | Ponchet J. | 0:2 (5:7, 4:6) | details | 21.03.2024 |
| 1/16-finals | Ambrosio S. | Sakatsume H. | 0:2 (3:6, 3:6) | details | 20.03.2024 |
 Czech Republic: W75 Ricany - Singles - Main |
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| Quarter-finals | Valentova T. | Sakatsume H. | 2:0 (6:1, 6:1) | details | 15.03.2024 |
| 1/8-finals | Sakatsume H. | Miyazaki L. | 2:1 (6:0, 4:6, 6:4) | details | 14.03.2024 |
| 1/16-finals | Sakatsume H. | Hajna K. | 2:0 (6:0, 6:0) | details | 12.03.2024 |
 Slovakia: W75 Trnava - Singles - Main |
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| Quarter-finals | Naef C. | Sakatsume H. | 2:0 (6:1, 6:2) | details | 08.03.2024 |
| 1/8-finals | Udvardy P. | Sakatsume H. | 0:2 (3:6, 3:6) | details | 07.03.2024 |
| 1/16-finals | Sakatsume H. | Jeanjean L. | 2:1 (63:7, 6:1, 6:2) | details | 06.03.2024 |
| Slovakia: W50 Trnava - Singles - Main |
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| 1/8-finals | Sakatsume H. | Liang E. S. | 0:2 (3:6, 0:6) | details | 29.02.2024 |
| 1/16-finals | Zhabrailova M. | Sakatsume H. | 0:2 (2:6, 3:6) | details | 27.02.2024 |
 India: Mumbai - Singles - Main |
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| 1/16-finals | Adkar V. | Sakatsume H. | CAN. | details | 05.02.2024 |
| India: Mumbai - Singles - Qualification |
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| Final | Sakatsume H. | Desai Z. | 1:0 RET. (7:5, 0:0) | details | 04.02.2024 |
| Semi-finals | Sakatsume H. | Nitture A. D. | 2:0 (6:3, 6:1) | details | 03.02.2024 |
 Thailand: Hua Hin - Singles - Qualification |
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| Final | Galfi D. | Sakatsume H. | 2:0 (7:5, 6:4) | details | 28.01.2024 |
| Semi-finals | Deeperm V. | Sakatsume H. | 0:2 (2:6, 2:6) | details | 27.01.2024 |
| India: W50 Pune - Singles - Main |
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| 1/8-finals | Jakupovic D. | Sakatsume H. | 1:0 RET. (6:4) | details | 25.01.2024 |
| 1/16-finals | Radanovic D. | Sakatsume H. | 1:2 (3:6, 6:3, 1:6) | details | 24.01.2024 |
 Australia: Australian Open - Singles - Qualification |
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| Quarter-finals | Sakatsume H. | Bejlek S. | 0:2 (3:6, 1:6) | details | 09.01.2024 |
 New Zealand: Auckland - Singles - Qualification |
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| Final | Fruhvirtova B. | Sakatsume H. | 2:0 (6:4, 6:2) | details | 30.12.2023 |
| Semi-finals | Zhao C. | Sakatsume H. | 0:2 (1:6, 3:6) | details | 29.12.2023 |
| New Zealand: W25 Papamoa - Singles - Main |
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| 1/16-finals | Sakatsume H. | Ivanov V. | 1:2 (3:6, 6:3, 3:6) | details | 18.12.2023 |
| Australia: W60 Gold Coast - Singles - Main |
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| 1/8-finals | Ercan M. | Sakatsume H. | 2:1 (4:6, 6:2, 6:2) | details | 30.11.2023 |
| 1/16-finals | Bolton E. | Sakatsume H. | 0:2 (0:6, 3:6) | details | 30.11.2023 |
 Japan: W100 Takasaki 2 - Singles - Main |
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| 1/16-finals | Sakatsume H. | Birrell K. | 1:2 (5:7, 6:2, 5:7) | details | 21.11.2023 |
| Japan: W100 Takasaki - Singles - Main |
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| 1/16-finals | Shimizu A. | Sakatsume H. | 2:1 (6:4, 3:6, 7:67) | details | 15.11.2023 |
| Japan: Tokyo - Singles - Main |
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| 1/16-finals | Sakatsume H. | Noskova L. | 0:2 (2:6, 5:7) | details | 26.09.2023 |
| Japan: Tokyo - Singles - Qualification |
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| Final | Sakatsume H. | Kawaguchi N. | 0:2 (62:7, 4:6) | details | 24.09.2023 |
| Semi-finals | Sakatsume H. | Hanatani N. | 2:0 (6:2, 6:0) | details | 23.09.2023 |
| Japan: Osaka - Singles - Main |
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| 1/8-finals | Wang Xin. | Sakatsume H. | 2:0 (6:4, 6:2) | details | 14.09.2023 |
| 1/16-finals | Sakatsume H. | Eala A. | 2:0 (6:0, 6:3) | details | 12.09.2023 |
| Japan: Osaka - Singles - Qualification |
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| Final | Sakatsume H. | Chong E. | 2:1 (6:3, 5:7, 6:0) | details | 10.09.2023 |
| Semi-finals | Sakatsume H. | Kawaguchi N. | 2:0 (6:3, 6:3) | details | 09.09.2023 |
| Japan: W100 Tokyo - Singles - Main |
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| 1/8-finals | Sakatsume H. | Golubic V. | 0:2 (3:6, 3:6) | details | 06.09.2023 |
| 1/16-finals | Hontama M. | Sakatsume H. | 1:1 RET. (6:2, 63:7, 0:2) | details | 05.09.2023 |
 USA: US Open - Singles - Qualification |
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| Final | Sakatsume H. | Juvan K. | 1:2 (6:2, 68:7, 4:6) | details | 26.08.2023 |
| Semi-finals | Hon P. | Sakatsume H. | 0:2 (3:6, 1:6) | details | 25.08.2023 |
| Quarter-finals | Benoit M. | Sakatsume H. | 0:2 (4:6, 60:7) | details | 23.08.2023 |
| USA: W100 Landisville, PA - Singles - Main |
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| 1/16-finals | Kessler M. | Sakatsume H. | 2:1 (3:6, 6:4, 6:2) | details | 09.08.2023 |
| USA: W60 Lexington, KY - Singles - Main |
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| Quarter-finals | Zarazua R. | Sakatsume H. | 2:0 (6:2, 6:2) | details | 04.08.2023 |
| 1/8-finals | Sakatsume H. | Brengle M. | 2:1 (3:6, 6:4, 6:4) | details | 03.08.2023 |