 Japan: W15 Hinode - Doubles - Main |
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| Quarter-finals | Akita S./Katsumi N. | Aikawa M./Saigo Y. | 1:2 (6:3, 1:6, 8:10) | details | 21.03.2024 |
| 1/8-finals | Inoue A./Kawagishi N. | Akita S./Katsumi N. | 0:2 (3:6, 1:6) | details | 19.03.2024 |
 Australia: W35 Traralgon 2 - Doubles - Main |
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| 1/8-finals | Ma Y./Parnaby A. | Katsumi N./Lee G. S. | 2:0 (6:3, 6:1) | details | 27.02.2024 |
| Australia: W35 Traralgon - Doubles - Main |
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| 1/8-finals | Hayashi E./Shimizu E. | Hosogi S./Katsumi N. | 2:0 (7:65, 6:3) | details | 20.02.2024 |
 India: W40 Navi Mumbai - Doubles - Main |
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| 1/8-finals | Katsumi N./Kobayashi H. | Desai Z./Zaytseva K. | 1:2 (1:6, 6:4, 2:10) | details | 26.12.2023 |
 New Zealand: W25 Papamoa - Doubles - Main |
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| 1/8-finals | Bayerlova M./Parnaby A. | Katsumi N./Khan L. | 2:0 (6:1, 6:2) | details | 18.12.2023 |
| New Zealand: W15 Wellington - Doubles - Main |
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| Final | Simmons E./Thompson B. | Chikaraishi Y./Katsumi N. | 0:2 (3:6, 3:6) | details | 15.12.2023 |
| Semi-finals | Kumhom L./Tse E. | Chikaraishi Y./Katsumi N. | 0:2 (1:6, 3:6) | details | 14.12.2023 |
| Quarter-finals | Chikaraishi Y./Katsumi N. | Ng M./Wu Ho C. | 2:0 (6:4, 6:3) | details | 14.12.2023 |
| 1/8-finals | Chikaraishi Y./Katsumi N. | Das A./Shing S. | 2:0 (6:2, 6:0) | details | 11.12.2023 |
| Japan: W100 Takasaki 2 - Doubles - Main |
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| 1/8-finals | Kumkhum L./Plipuech P. | Katsumi N./Sato H. | 2:0 (6:1, 6:3) | details | 22.11.2023 |
| Japan: W100 Takasaki - Doubles - Main |
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| 1/8-finals | Saito S./Shibahara E. | Katsumi N./Yoshioka K. | 2:0 (6:1, 6:2) | details | 14.11.2023 |
| Japan: W25 Makinohara - Doubles - Main |
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| Quarter-finals | Katsumi N./Ozeki M. | Hosoki Y./Hsieh Y. | 1:2 (6:4, 4:6, 4:10) | details | 05.10.2023 |
| 1/8-finals | Katsumi N./Ozeki M. | Hirata A./Miyata M. | 2:1 (6:4, 4:6, 10:5) | details | 03.10.2023 |
| Japan: W40 Nanao - Doubles - Main |
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| 1/8-finals | Akita S./Katsumi N. | Kozaki F./Ozeki M. | WO. | details | 26.09.2023 |
| Australia: W25 Perth 2 - Doubles - Main |
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| 1/8-finals | Katsumi N./Yamazaki I. | Aiava D./Inglis M. | 0:2 (1:6, 3:6) | details | 19.09.2023 |
| Australia: W25 Perth - Doubles - Main |
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| 1/8-finals | Katsumi N./Yamazaki I. | Mays L./Parnaby A. | 1:2 (5:7, 7:5, 10:12) | details | 15.09.2023 |
| Australia: W15 Caloundra 2 - Doubles - Main |
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| Semi-finals | Barry M./Fairclough L. | Jones E./Katsumi N. | 2:0 (6:4, 6:2) | details | 04.08.2023 |
| Quarter-finals | Adamczak M./McDonald S. | Jones E./Katsumi N. | 1:2 (2:6, 6:4, 8:10) | details | 03.08.2023 |
| 1/8-finals | Jones E./Katsumi N. | Dennehy S./Katz A. | 2:0 (6:3, 6:4) | details | 01.08.2023 |
| Australia: W15 Caloundra - Doubles - Main |
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| Final | Katsumi N./Larke Z. | Smith A./Webb S. | 0:2 (1:6, 2:6) | details | 29.07.2023 |
| Semi-finals | Osafune K./Ueda R. | Katsumi N./Larke Z. | 1:2 (6:4, 4:6, 4:10) | details | 28.07.2023 |
| Quarter-finals | Katsumi N./Larke Z. | Hosonuma C./Tse E. | 2:0 (6:1, 6:3) | details | 27.07.2023 |
| 1/8-finals | Katsumi N./Larke Z. | Aulia A./Katz A. | 2:0 (6:1, 6:1) | details | 25.07.2023 |
 Thailand: W15 Nakhon Si Thammarat 4 - Doubles - Main |
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| 1/8-finals | Katsumi N./Yamaguchi A. | Nagata A./Yoshioka K. | 0:2 (3:6, 3:6) | details | 18.07.2023 |
| Thailand: W15 Nakhon Si Thammarat 3 - Doubles - Main |
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| 1/8-finals | Katsumi N./Yamaguchi A. | Back D./Jeong B. | 1:2 (6:2, 1:6, 8:10) | details | 11.07.2023 |
| Japan: W15 Kawaguchi - Doubles - Main |
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| Semi-finals | Miyamoto A./Rioux L. | Atturu S./Katsumi N. | 2:0 (6:1, 7:5) | details | 16.06.2023 |
| Quarter-finals | Yamaguchi A./Yoshioka K. | Atturu S./Katsumi N. | 1:2 (1:6, 6:4, 5:10) | details | 16.06.2023 |
| 1/8-finals | Higashitani N./Shibata S. | Atturu S./Katsumi N. | 1:2 (6:1, 2:6, 6:10) | details | 14.06.2023 |
| Japan: W25 Tokyo - Doubles - Main |
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| 1/8-finals | Katsumi N./Wakayama R. | Ito A./Kozaki F. | 0:2 (2:6, 1:6) | details | 31.05.2023 |