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| Semi-finals | Pieri S. | Watanabe S. | 2:0 (6:1, 6:4) | details | 01.03.2026 | ||
| Semi-finals | Watanabe S. | Kumasaka T. | 1:2 (3:6, 6:3, 4:6) | details | 20.10.2025 | ||
| Final | Watanabe S. | Ramanathan R. | 0:2 (5:7, 64:7) | details | 08.09.2025 | ||
| Semi-finals | Bar Biryukov P. | Watanabe S. | CAN. | details | 07.09.2025 | ||
| Semi-finals | Watanabe S. | Watt J. | 0:2 (3:6, 4:6) | details | 24.08.2025 | ||
| 1/8-finals | Jecan M. A./Watanabe S. | Liutarevich I./Pujol Navarro B. | 0:2 (65:7, 3:6) | details | 18.03.2026 | ||
| 1/8-finals | Latinovic S./Pavlovic L. | Jecan M. A./Watanabe S. | 2:0 (7:5, 6:3) | details | 11.03.2026 | ||
| 1/8-finals | Dev S D P./Sinha N. K. | Vasa E./Watanabe S. | 2:0 (6:4, 6:4) | details | 04.03.2026 | ||
| Semi-finals | Shimizu Y./Watanabe S. | Isaro P./Kaliyanda Poonacha N. | 0:2 (5:7, 64:7) | details | 27.02.2026 | ||
| Quarter-finals | Myneni S./Singh D. | Shimizu Y./Watanabe S. | 0:2 (4:6, 4:6) | details | 26.02.2026 | ||