Select tournament type
| Final | Kikuchi Y. | Taguchi R. | 1:2 (6:4, 3:6, 3:6) | details | 17.11.2025 | ||
| Semi-finals | Kikuchi Y. | Uesugi K. | 2:1 (0:6, 6:2, 6:2) | details | 16.11.2025 | ||
| Final | Kikuchi Y. | Nakagawa S. | 0:2 (3:6, 5:7) | details | 03.11.2025 | ||
| Semi-finals | Kikuchi Y. | Tabata R. | 2:0 (6:0, 6:4) | details | 02.11.2025 | ||
| Final | Sultanov K. | Kikuchi Y. | 2:0 (6:2, 6:4) | details | 20.10.2025 | ||
| Semi-finals | Kikuchi Y. | Palan D. | 2:0 (6:3, 6:4) | details | 20.10.2025 | ||
| Semi-finals | Dev S D P. | Kikuchi Y. | 2:1 (6:4, 3:6, 6:3) | details | 12.10.2025 | ||
| Semi-finals | Kikuchi Y. | Shin S. | 1:2 (6:3, 1:6, 2:6) | details | 22.09.2025 | ||
| 1/16-finals | Takahashi Y. | Kikuchi Y. | 2:0 (6:3, 6:0) | details | 16.09.2025 | ||
| 1/16-finals | Kikuchi Y. | Hsu Y. H. | 1:2 (6:4, 3:6, 3:6) | details | 09.09.2025 | ||
| Final | Liu H. | Kikuchi Y. | 0:2 (4:6, 3:6) | details | 08.09.2025 | ||
| Semi-finals | Zeng Y. | Kikuchi Y. | 0:2 (3:6, 63:7) | details | 08.09.2025 | ||
| Quarter-finals | Sim S. | Kikuchi Y. | 2:0 (6:4, 6:4) | details | 05.09.2025 | ||
| 1/8-finals | Vardhan V. | Kikuchi Y. | 0:2 (2:6, 1:6) | details | 04.09.2025 | ||
| 1/16-finals | Sun Z. | Kikuchi Y. | 1:2 (0:6, 6:4, 4:6) | details | 02.09.2025 | ||
| 1/16-finals | Uchiyama Y. | Kikuchi Y. | 2:1 (6:2, 5:7, 6:1) | details | 26.08.2025 | ||
| Final | Chen C. | Kikuchi Y. | 0:2 (4:6, 3:6) | details | 25.08.2025 | ||
| Semi-finals | Tajima N. | Kikuchi Y. | 0:2 (3:6, 5:7) | details | 24.08.2025 | ||
| Final | Kikuchi Y. | Sun Qian | 2:0 (6:1, 6:4) | details | 10.08.2025 | ||
| Semi-finals | Kikuchi Y. | Mo Y. C. | 2:0 (6:3, 6:4) | details | 09.08.2025 | ||
| Quarter-finals | Shin S. | Kikuchi Y. | 1:2 (2:6, 6:2, 62:7) | details | 08.08.2025 | ||
| 1/8-finals | Meng F. | Kikuchi Y. | 0:2 (1:6, 2:6) | details | 07.08.2025 | ||
| 1/16-finals | Sun Z. | Kikuchi Y. | 0:2 (1:6, 0:6) | details | 06.08.2025 | ||
| Final | Kikuchi Y. | Lee D. H. | 0:2 (3:6, 3:6) | details | 03.08.2025 | ||
| Semi-finals | Sumizawa D. | Kikuchi Y. | 0:2 (3:6, 2:6) | details | 02.08.2025 | ||
| Quarter-finals | Kikuchi Y. | Derepasko T. | 2:0 (6:3, 6:1) | details | 01.08.2025 | ||
| 1/8-finals | Kikuchi Y. | Ferguson C. | 2:0 (6:4, 6:4) | details | 31.07.2025 | ||
| 1/16-finals | Kikuchi Y. | Zhang B. | 2:0 (6:4, 7:5) | details | 30.07.2025 | ||
| 1/8-finals | Shin W. | Kikuchi Y. | 2:0 (7:65, 6:4) | details | 10.07.2025 | ||
| 1/16-finals | Katayama S. | Kikuchi Y. | 0:2 (3:6, 3:6) | details | 09.07.2025 | ||
| 1/16-finals | Kikuchi Y. | Kirci K. | 1:2 (6:3, 64:7, 1:6) | details | 02.07.2025 | ||
| Quarter-finals | Mochizuki Y. | Kikuchi Y. | 2:0 (6:3, 7:5) | details | 06.06.2025 | ||
| 1/8-finals | Kikuchi Y. | Roh H. | 2:0 (6:3, 6:3) | details | 05.06.2025 | ||
| 1/16-finals | Kikuchi Y. | Kim D. | 2:0 (6:4, 6:1) | details | 04.06.2025 | ||
| 1/8-finals | Reynolds F./Watt J. | Kikuchi Y./Sueoka Y. | 2:0 (6:3, 6:2) | details | 05.11.2025 | ||
| 1/8-finals | Chandrasekar A./Stalder R. | Inui Y./Kikuchi Y. | 2:1 (7:5, 3:6, 10:5) | details | 11.09.2025 | ||
| Quarter-finals | Inui Y./Kikuchi Y. | Cho Seung Woo/Yang Z. | 0:2 (4:6, 65:7) | details | 04.09.2025 | ||
| 1/8-finals | Inui Y./Kikuchi Y. | Ianin N./Park S. | 2:0 (6:3, 7:63) | details | 03.09.2025 | ||
| Semi-finals | Kikuchi Y./Sun Qian | Inui Y./Ochi M. | 0:2 (3:6, 4:6) | details | 08.08.2025 | ||
| Quarter-finals | Kikuchi Y./Sun Qian | Liu S./Lu P. | 2:0 (6:2, 6:1) | details | 07.08.2025 | ||
| 1/8-finals | Kikuchi Y./Sun Qian | Mo Y. C./Wang X. | 2:0 (7:63, 7:5) | details | 05.08.2025 | ||
| Quarter-finals | Ferguson C./Sim S. | Kikuchi Y./Lee D. H. | 2:0 (6:4, 6:3) | details | 31.07.2025 | ||
| 1/8-finals | Kikuchi Y./Lee D. H. | Jin Y./Lu P. | 2:1 (4:6, 6:4, 10:4) | details | 30.07.2025 | ||
| Semi-finals | Seelig K./Sinclair C. | Kawachi K./Kikuchi Y. | 2:0 (6:3, 7:5) | details | 11.07.2025 | ||
| Quarter-finals | Ichikawa T./Noguchi M. | Kawachi K./Kikuchi Y. | 0:2 (1:6, 2:6) | details | 10.07.2025 | ||
| 1/8-finals | Honda N./Horiuchi R. | Kawachi K./Kikuchi Y. | 0:2 (4:6, 4:6) | details | 08.07.2025 | ||
| Semi-finals | Kawachi K./Kikuchi Y. | Kusuhara Y./Nakagawa S. | 0:2 (3:6, 3:6) | details | 04.07.2025 | ||
| Quarter-finals | Shiraishi H./Takahata R. | Kawachi K./Kikuchi Y. | 0:2 (62:7, 3:6) | details | 03.07.2025 | ||
| 1/8-finals | Katayama S./Kono Y. | Kawachi K./Kikuchi Y. | 0:2 (2:6, 3:6) | details | 01.07.2025 | ||
| 1/8-finals | Imai S./Matsuda R. | Kikuchi Y./Masabayashi T. | 2:0 (7:67, 6:4) | details | 03.06.2025 | ||