 Brazil: Santos - Doubles - Main |
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| 1/8-finals | Mena F./Sakellaridis S. | Watanabe S./Takeru Y. | CAN. | details | 08.05.2024 |
| Brazil: Porto Alegre - Doubles - Main |
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| 1/8-finals | Alves M./Dutra Da Silva D. | Watanabe S./Takeru Y. | 2:1 (7:62, 62:7, 10:2) | details | 01.05.2024 |
 Chile: Concepcion - Doubles - Main |
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| Final | Watanabe S./Takeru Y. | Harper P./Stevenson D. | 2:0 (6:4, 7:66) | details | 27.04.2024 |
| Semi-finals | Watanabe S./Takeru Y. | Cid Subervi R./Kirkin E. | 2:1 (6:3, 5:7, 11:9) | details | 26.04.2024 |
| Quarter-finals | Britto L./Villanueva G. | Watanabe S./Takeru Y. | 1:2 (7:64, 3:6, 4:10) | details | 25.04.2024 |
| 1/8-finals | Watanabe S./Takeru Y. | Ribero F./Torres J. B. | 2:0 (6:4, 6:3) | details | 24.04.2024 |
| 1/8-finals | Watanabe S./Takeru Y. | Ambrogi L. E./Rodriguez L. J. | CAN. | details | 24.04.2024 |
 Argentina: San Miguel de Tucuman - Doubles - Main |
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| Quarter-finals | Watanabe S./Takeru Y. | Carou I./Casanova H. | 1:2 (4:6, 6:2, 8:10) | details | 18.04.2024 |
| 1/8-finals | Watanabe S./Takeru Y. | Justo G. I./Kirkin E. | 2:0 (6:3, 6:3) | details | 17.04.2024 |
 Tunisia: M25 Hammamet 6 - Doubles - Main |
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| Quarter-finals | Collignon R./Kym J. | Watanabe S./Zgirovsky A. | 2:0 (6:3, 6:4) | details | 11.04.2024 |
| 1/8-finals | Serazhetdinov R./Singh A. J. | Watanabe S./Zgirovsky A. | 0:2 (2:6, 1:6) | details | 09.04.2024 |
| Tunisia: M25 Hammamet 5 - Doubles - Main |
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| Quarter-finals | Agostini S./Ovcharenko O. | Watanabe S./Zgirovsky A. | 2:0 (6:4, 6:1) | details | 04.04.2024 |
| 1/8-finals | De Vincentis M./Noce G. M. | Watanabe S./Zgirovsky A. | 0:2 (65:7, 3:6) | details | 02.04.2024 |
 Rwanda: Kigali 2 - Doubles - Main |
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| Semi-finals | Watanabe S./Takeru Y. | Fancutt T. J./Reese H. | 0:2 (3:6, 4:6) | details | 08.03.2024 |
| Quarter-finals | Watanabe S./Takeru Y. | Denolly C./Wenger D. | 2:1 (6:4, 3:6, 10:5) | details | 07.03.2024 |
| 1/8-finals | Isaro P./Rungkat C. | Watanabe S./Takeru Y. | 0:2 (62:7, 64:7) | details | 06.03.2024 |
| Rwanda: Kigali - Doubles - Main |
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| 1/8-finals | Watanabe S./Takeru Y. | Houkes M./Tabur C. | 0:2 (2:6, 65:7) | details | 28.02.2024 |
 Australia: Burnie 2 - Doubles - Main |
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| 1/8-finals | Ichikawa T./Watanabe S. | Imai S./Moriya H. | 1:2 (6:3, 3:6, 8:10) | details | 06.02.2024 |
| 1/8-finals | Ichikawa T./Watanabe S. | Bouzige M./Mott B. | CAN. | details | 06.02.2024 |
| Australia: Burnie - Doubles - Main |
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| Quarter-finals | Bayldon B./Pearson K. | Ichikawa T./Watanabe S. | 2:1 (64:7, 7:5, 10:7) | details | 01.02.2024 |
| 1/8-finals | Harper P./Harris A. | Ichikawa T./Watanabe S. | 0:2 (65:7, 5:7) | details | 30.01.2024 |
 Japan: M15 Yanagawa - Doubles - Main |
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| Quarter-finals | Isomura K./Sueoka Y. | Katayama S./Watanabe S. | 2:1 (2:6, 7:5, 14:12) | details | 23.12.2023 |
| 1/8-finals | Noguchi M./Yoshimura D. | Katayama S./Watanabe S. | 0:2 (1:6, 4:6) | details | 23.12.2023 |
 India: M25 Kalaburagi - Doubles - Main |
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| Quarter-finals | Kalyanpur A./Rawat S. | Ichikawa T./Watanabe S. | 2:0 (6:1, 6:4) | details | 30.11.2023 |
| 1/8-finals | Aggarwal P./Reddy R. | Ichikawa T./Watanabe S. | 0:2 (4:6, 2:6) | details | 28.11.2023 |
| India: M25 Mumbai - Doubles - Main |
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| 1/8-finals | Adams H./Orlov V. | Ichikawa T./Watanabe S. | 2:1 (6:3, 5:7, 10:7) | details | 22.11.2023 |
| Japan: Kobe - Doubles - Main |
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| 1/8-finals | Sabanov I./Sabanov M. | Shimabukuro S./Watanabe S. | 2:1 (4:6, 6:4, 10:6) | details | 15.11.2023 |
| Japan: Tokyo - Doubles - Main |
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| 1/8-finals | Watanabe S./Takeru Y. | Murray J./Venus M. | 1:2 (2:6, 7:68, 3:10) | details | 18.10.2023 |
| Japan: Tokyo - Doubles - Qualification |
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| Semi-finals | Ichikawa T./Imamura M. | Watanabe S./Takeru Y. | 2:1 (4:6, 6:3, 10:8) | details | 14.10.2023 |