France: Cassis - Doubles - Main |
| Quarter-finals | Fancutt T. J./Watanabe S. | Bertrand R./Soriano Barrera A. | 2:1 (4:6, 7:63, 12:10) | dettagli | 10.09.2026 |
| 1/8-finals | Fancutt T. J./Watanabe S. | Covato M./Voelzke G. | 2:0 (6:2, 7:64) | dettagli | 10.09.2026 |
Spain: Mallorca - Doubles - Main |
| Semi-finals | Barroso Campos A./Vega Hernandez D. | Fancutt T. J./Watanabe S. | 2:0 (6:4, 6:2) | dettagli | 04.09.2026 |
| Quarter-finals | Butvilas E./Kasnikowski M. | Fancutt T. J./Watanabe S. | 1:2 (4:6, 6:3, 12:14) | dettagli | 03.09.2026 |
| 1/8-finals | Balshaw F./Johansson O. | Fancutt T. J./Watanabe S. | 0:2 (5:7, 2:6) | dettagli | 01.09.2026 |
Jamaica: Kingston 2 - Doubles - Main |
| Quarter-finals | Fancutt T. J./Watanabe S. | Donski A./Martin D. | 0:2 (61:7, 4:6) | dettagli | 27.08.2026 |
| 1/8-finals | Fancutt T. J./Watanabe S. | Huertas Del Pino Cordova A./Pacheco Mendez R. | 2:0 (7:64, 6:3) | dettagli | 26.08.2026 |
Jamaica: Kingston - Doubles - Main |
| Quarter-finals | Fancutt T. J./Watanabe S. | Kavcic B./Purcell M. | 1:2 (6:4, 3:6, 5:10) | dettagli | 20.08.2026 |
| 1/8-finals | Fancutt T. J./Watanabe S. | Bueno G./Prado Angelo J. C. | CAN. | dettagli | 20.08.2026 |
| 1/8-finals | Fancutt T. J./Watanabe S. | Fellin P. O./Winter E. | 2:0 (6:4, 7:5) | dettagli | 20.08.2026 |
USA: M25 East Lansing, MI - Doubles - Main |
| Semi-finals | Fancutt T. J./Watanabe S. | Okonkwo A./Okonkwo O. | 0:2 (4:6, 4:6) | dettagli | 14.08.2026 |
| Quarter-finals | Fancutt T. J./Watanabe S. | Fuchs A./Fuchs Z. | 2:0 (7:65, 6:4) | dettagli | 13.08.2026 |
| 1/8-finals | Fancutt T. J./Watanabe S. | Battle L./Nelson T. | 2:0 (6:4, 6:4) | dettagli | 12.08.2026 |
USA: Lexington - Doubles - Main |
| 1/8-finals | Ho R./Liutarevich I. | Hsu Y. H./Watanabe S. | 2:0 (6:3, 6:3) | dettagli | 05.08.2026 |
Canada: Vancouver - Doubles - Main |
| Semi-finals | Hsu Y. H./Watanabe S. | Lammons N./Withrow J. | 1:2 (3:6, 6:3, 3:10) | dettagli | 31.07.2026 |
| Quarter-finals | Chidekh C./Grenier H. | Hsu Y. H./Watanabe S. | 0:2 (2:6, 2:6) | dettagli | 31.07.2026 |
| 1/8-finals | Hsu Y. H./Watanabe S. | Harper P./Hilderbrand T. | 2:0 (6:4, 7:5) | dettagli | 30.07.2026 |
Canada: Winnipeg - Doubles - Main |
| Quarter-finals | Hsu Y. H./Watanabe S. | Milavsky D./Shick B. | 1:2 (6:4, 69:7, 7:10) | dettagli | 23.07.2026 |
| 1/8-finals | Hsu Y. H./Watanabe S. | Ilagan A./Sekulic P. | 2:0 (6:4, 6:1) | dettagli | 22.07.2026 |
Canada: Granby - Doubles - Main |
| Semi-finals | Dalmasso G./Kuhar M. | Uchida K./Watanabe S. | 2:0 (6:2, 6:4) | dettagli | 17.07.2026 |
| Quarter-finals | Uchida K./Watanabe S. | Pearson K./Puttergill C. | 2:0 (6:4, 6:2) | dettagli | 16.07.2026 |
| 1/8-finals | George B. T./Rozin S. | Uchida K./Watanabe S. | 1:2 (7:5, 2:6, 5:10) | dettagli | 15.07.2026 |
| 1/8-finals | Broady L./Schoolkate T. | Uchida K./Watanabe S. | CAN. | dettagli | 15.07.2026 |
USA: Newport - Doubles - Main |
| 1/8-finals | Romboli F./Smith J. P. | Noguchi R./Watanabe S. | 2:0 (6:3, 6:4) | dettagli | 09.07.2026 |
USA: Cary - Doubles - Main |
| 1/8-finals | Shimizu Y./Watanabe S. | Nam Ji S./Niklas-Salminen P. | 1:2 (7:65, 2:6, 6:10) | dettagli | 02.07.2026 |
USA: Tyler - Doubles - Main |
| Semi-finals | Bollipalli R./Ramanathan R. | Sun F./Watanabe S. | 2:0 (6:3, 6:2) | dettagli | 07.06.2026 |
| Quarter-finals | Martinez L. D./Masur D. | Sun F./Watanabe S. | 1:2 (7:64, 4:6, 5:10) | dettagli | 06.06.2026 |
| 1/8-finals | Martin D./Vandecasteele Q. | Sun F./Watanabe S. | 1:2 (6:3, 5:7, 5:10) | dettagli | 04.06.2026 |
USA: Little Rock - Doubles - Main |
| Semi-finals | Kumar P./Poling K. | Shimizu Y./Watanabe S. | 2:1 (6:3, 3:6, 10:4) | dettagli | 31.05.2026 |
| Quarter-finals | Shimizu Y./Watanabe S. | Basel V./Oliveira B. | WO. | dettagli | 30.05.2026 |
| 1/8-finals | Shimizu Y./Watanabe S. | Fenty A./Perez B. | 2:1 (6:3, 2:6, 15:13) | dettagli | 27.05.2026 |
China: Wuxi - Doubles - Main |
| Semi-finals | Nam Ji S./Niklas-Salminen P. | Hsu Y. H./Watanabe S. | 2:1 (6:4, 5:7, 10:6) | dettagli | 08.05.2026 |
| Quarter-finals | Hsu Y. H./Watanabe S. | Bollipalli R./Kadhe A. | 2:0 (6:3, 6:4) | dettagli | 07.05.2026 |
| 1/8-finals | Hsu Y. H./Watanabe S. | Jung J./Uesugi K. | 2:1 (1:6, 6:4, 11:9) | dettagli | 06.05.2026 |
China: Jiujiang - Doubles - Main |
| Final | Hsu Y. H./Watanabe S. | Nam Ji S./Niklas-Salminen P. | 0:2 (4:6, 4:6) | dettagli | 02.05.2026 |
| Semi-finals | Noguchi R./Sun F. | Hsu Y. H./Watanabe S. | 1:2 (6:3, 0:6, 4:10) | dettagli | 01.05.2026 |
| Quarter-finals | Hsu Y. H./Watanabe S. | Jung J./Uesugi K. | 2:0 (7:63, 7:62) | dettagli | 01.05.2026 |
| 1/8-finals | Loof T./Yuzuki T. | Hsu Y. H./Watanabe S. | 0:2 (4:6, 4:6) | dettagli | 30.04.2026 |
South Korea: Gwangju - Doubles - Main |
| 1/8-finals | Hsu Y. H./Watanabe S. | Shimizu Y./Uesugi K. | 0:2 (1:6, 3:6) | dettagli | 23.04.2026 |
South Korea: Busan - Doubles - Main |
| 1/8-finals | Hsu Y. H./Watanabe S. | Isaro P./Kaliyanda Poonacha N. | 0:2 (65:7, 1:6) | dettagli | 15.04.2026 |
China: Wuning - Doubles - Main |
| 1/8-finals | Park U./Pearson K. | Uchiyama Y./Watanabe S. | CAN. | dettagli | 08.04.2026 |
Spain: Menorca - Doubles - Main |
| Semi-finals | Isaro P./Kaliyanda Poonacha N. | Molchanov D./Watanabe S. | 2:0 (6:3, 6:1) | dettagli | 04.04.2026 |
| Quarter-finals | Paulson A./Vrbensky M. | Molchanov D./Watanabe S. | 1:2 (4:6, 6:4, 3:10) | dettagli | 03.04.2026 |
| 1/8-finals | Molchanov D./Watanabe S. | Coccioli A./Virgili Berini F. | 2:0 (6:3, 6:2) | dettagli | 02.04.2026 |
Spain: Alicante - Doubles - Main |
| 1/8-finals | Jecan M. A./Watanabe S. | Drzewiecki K./Matuszewski P. | 0:2 (5:7, 62:7) | dettagli | 25.03.2026 |
Spain: Murcia - Doubles - Main |
| 1/8-finals | Jecan M. A./Watanabe S. | Liutarevich I./Pujol Navarro B. | 0:2 (65:7, 3:6) | dettagli | 18.03.2026 |
Rwanda: Kigali 2 - Doubles - Main |
| 1/8-finals | Latinovic S./Pavlovic L. | Jecan M. A./Watanabe S. | 2:0 (7:5, 6:3) | dettagli | 11.03.2026 |
Rwanda: Kigali - Doubles - Main |
| 1/8-finals | Dev S D P./Sinha N. K. | Vasa E./Watanabe S. | 2:0 (6:4, 6:4) | dettagli | 04.03.2026 |
India: Pune - Doubles - Main |
| Semi-finals | Shimizu Y./Watanabe S. | Isaro P./Kaliyanda Poonacha N. | 0:2 (5:7, 64:7) | dettagli | 27.02.2026 |