Select tournament type
| 1/16-finals | Huesler M. | Katayama S. | 2:0 (6:4, 7:66) | details | 03.11.2025 | ||
| Semi-finals | Katayama S. | Shick B. | 0:2 (3:6, 0:6) | details | 01.11.2025 | ||
| Quarter-finals | Ichikawa T. | Katayama S. | 0:2 (5:7, 2:6) | details | 31.10.2025 | ||
| 1/8-finals | Lee W. C. | Katayama S. | 0:2 (1:6, 2:6) | details | 30.10.2025 | ||
| 1/16-finals | Katayama S. | Yamanaka T. | 2:0 (6:4, 6:2) | details | 29.10.2025 | ||
| 1/16-finals | Nakagawa N. | Katayama S. | 2:0 (6:4, 6:2) | details | 09.09.2025 | ||
| 1/16-finals | Katayama S. | Kikuchi Y. | 0:2 (3:6, 3:6) | details | 09.07.2025 | ||
| 1/16-finals | Katayama S. | Atmane T. | 0:2 (1:6, 2:6) | details | 04.11.2024 | ||
| Quarter-finals | Katayama S. | Imai S. | 0:2 (4:6, 2:6) | details | 12.07.2024 | ||
| 1/8-finals | Takahashi Y. | Katayama S. | WO. | details | 11.07.2024 | ||
| 1/16-finals | Katayama S. | Hazawa S. | 2:0 (6:3, 6:3) | details | 10.07.2024 | ||
| 1/8-finals | Katayama S. | Hara Friend J. D. | 0:2 (3:6, 5:7) | details | 28.12.2023 | ||
| 1/16-finals | Shiraishi H. | Katayama S. | 0:1 RET. (3:6, 0:2) | details | 27.12.2023 | ||
| 1/8-finals | Katayama S./Kono Y. | Huesler M./Johns G. | 0:2 (2:6, 5:7) | details | 04.11.2025 | ||
| Final | Katayama S./Kono Y. | Sim S./Sueoka Y. | 2:0 (6:1, 6:4) | details | 01.11.2025 | ||
| Semi-finals | Shick B./Tanuma R. | Katayama S./Kono Y. | WO. | details | 01.11.2025 | ||
| Quarter-finals | Katayama S./Kono Y. | Otsuka K./Shibano K. | 2:0 (7:62, 6:1) | details | 30.10.2025 | ||
| 1/8-finals | Katayama S./Kono Y. | Jiang F./Muto S. | 2:0 (6:2, 6:2) | details | 28.10.2025 | ||
| 1/8-finals | Katayama S./Kusuhara Y. | Saitoh K./Sumizawa D. | 0:2 (3:6, 3:6) | details | 09.09.2025 | ||
| Quarter-finals | Katayama S./Kono Y. | Ogura K./Shiraishi H. | 1:2 (6:3, 3:6, 5:10) | details | 04.09.2025 | ||
| 1/8-finals | Adachi T./Yamamoto N. | Katayama S./Kono Y. | 0:2 (2:6, 64:7) | details | 03.09.2025 | ||
| Final | Katayama S./Kono Y. | Seelig K./Sinclair C. | 2:0 (7:63, 6:3) | details | 12.07.2025 | ||
| Semi-finals | Katayama S./Kono Y. | Fukuda S./Matsuoka S. | 2:0 (7:65, 6:4) | details | 11.07.2025 | ||
| Quarter-finals | Kusuhara Y./Nakagawa S. | Katayama S./Kono Y. | 1:2 (4:6, 6:4, 7:10) | details | 10.07.2025 | ||
| 1/8-finals | Katayama S./Kono Y. | Adachi T./Kojima R. | 2:0 (6:1, 6:2) | details | 08.07.2025 | ||
| 1/8-finals | Katayama S./Kono Y. | Kawachi K./Kikuchi Y. | 0:2 (2:6, 3:6) | details | 01.07.2025 | ||
| 1/8-finals | Katayama S./Kono Y. | Kusuhara Y./Noguchi M. | 1:2 (7:65, 2:6, 3:10) | details | 23.04.2025 | ||
| Semi-finals | Kusuhara Y./Nakagawa S. | Katayama S./Kono Y. | 2:0 (6:1, 6:3) | details | 18.04.2025 | ||
| Quarter-finals | Hazawa S./Kawahashi Y. | Katayama S./Kono Y. | 1:2 (2:6, 6:4, 9:11) | details | 18.04.2025 | ||
| 1/8-finals | Katayama S./Kono Y. | Kumasaka T./Yamasaki J. | 2:1 (6:3, 3:6, 10:4) | details | 17.04.2025 | ||
| Quarter-finals | Katayama S./Uchida K. | Watanabe S./Yuzuki T. | 0:2 (0:6, 3:6) | details | 07.11.2024 | ||
| 1/8-finals | Stevenson D./Willis M. | Katayama S./Uchida K. | 1:2 (6:2, 2:6, 8:10) | details | 05.11.2024 | ||
| Final | Katayama S./Kono Y. | Kawachi K./Matsuda K. | 2:0 (6:4, 6:2) | details | 01.11.2024 | ||
| Semi-finals | Honda N./Tomida Y. | Katayama S./Kono Y. | 0:2 (0:6, 1:6) | details | 31.10.2024 | ||
| Quarter-finals | Katayama S./Kono Y. | Kikuchi Y./Noguchi M. | 2:0 (6:4, 7:63) | details | 31.10.2024 | ||
| 1/8-finals | Katayama S./Kono Y. | Okamura I./Suzuki K. | 2:0 (6:2, 7:5) | details | 30.10.2024 | ||
| Final | Kawahashi Y./Taguchi R. | Katayama S./Kusuhara Y. | 0:2 (5:7, 1:6) | details | 08.09.2024 | ||
| Semi-finals | Katayama S./Kusuhara Y. | Ogura K./Thompkins J. | 2:1 (613:7, 7:5, 10:7) | details | 07.09.2024 | ||
| Quarter-finals | Katayama K./Yoshimura D. | Katayama S./Kusuhara Y. | 0:2 (4:6, 4:6) | details | 06.09.2024 | ||
| 1/8-finals | Matsuda R./Shiraishi H. | Katayama S./Kusuhara Y. | 0:2 (64:7, 1:6) | details | 05.09.2024 | ||
| Quarter-finals | Ito T./Katayama S. | Hazawa S./Ichikawa T. | 1:2 (7:67, 2:6, 7:10) | details | 11.07.2024 | ||
| 1/8-finals | Barki N. A./Rungkat C. | Ito T./Katayama S. | 0:2 (1:6, 4:6) | details | 10.07.2024 | ||
| Final | Katayama S./Kono Y. | Kusuhara Y./Nakagawa S. | 0:2 (4:6, 66:7) | details | 06.07.2024 | ||
| Semi-finals | Katayama S./Kono Y. | Isomura K./Miyoshi K. | 2:0 (7:64, 6:1) | details | 05.07.2024 | ||
| Quarter-finals | Lee J. M./Song M.-K. | Katayama S./Kono Y. | 0:2 (63:7, 3:6) | details | 04.07.2024 | ||
| 1/8-finals | Shimomura R./Takagi T. | Katayama S./Kono Y. | 0:2 (3:6, 4:6) | details | 02.07.2024 | ||
| 1/8-finals | Ito T./Katayama S. | Kawachi K./Tokuda R. | 1:2 (3:6, 7:5, 6:10) | details | 02.04.2024 | ||
| Final | Katayama S./Nakagawa S. | Kawachi K./Sueoka Y. | 2:0 (6:2, 6:3) | details | 30.12.2023 | ||
| Semi-finals | Ichikawa T./Kono Y. | Katayama S./Nakagawa S. | 0:2 (63:7, 2:6) | details | 29.12.2023 | ||
| Quarter-finals | Saitoh K./Yamanaka T. | Katayama S./Nakagawa S. | 0:2 (1:6, 1:6) | details | 28.12.2023 | ||