Select tournament type
| Quarter-finals | Duckworth J. | Noguchi R. | 2:0 (7:65, 6:2) | details | 28.11.2025 | ||
| 1/8-finals | Moriya H. | Noguchi R. | 0:2 (4:6, 4:6) | details | 26.11.2025 | ||
| 1/16-finals | Delaney Ja. | Noguchi R. | 0:2 (2:6, 4:6) | details | 24.11.2025 | ||
| 1/16-finals | Noguchi R. | Sach T. | 1:2 (6:2, 1:6, 2:6) | details | 17.11.2025 | ||
| 1/16-finals | Noguchi R. | Delaney Ja. | 0:2 (2:6, 63:7) | details | 11.11.2025 | ||
| Quarter-finals | Rocha H. | Noguchi R. | 2:1 (7:5, 4:6, 6:3) | details | 07.11.2025 | ||
| 1/8-finals | Sekulic P. | Noguchi R. | 0:2 (2:6, 65:7) | details | 05.11.2025 | ||
| 1/16-finals | Takahashi Y. | Noguchi R. | 0:2 (5:7, 4:6) | details | 04.11.2025 | ||
| 1/8-finals | Noguchi R. | Shimabukuro S. | 0:2 (4:6, 3:6) | details | 29.10.2025 | ||
| 1/16-finals | Duckworth J. | Noguchi R. | 1:2 (6:1, 5:7, 3:6) | details | 27.10.2025 | ||
| 1/16-finals | Noguchi R. | Uchida K. | 1:2 (7:5, 4:6, 3:6) | details | 15.10.2025 | ||
| Semi-finals | Noguchi R. | Fomin S. | 1:2 (7:64, 4:6, 62:7) | details | 06.10.2025 | ||
| Semi-finals | Nishioka Y. | Noguchi R. | 2:0 (6:3, 6:2) | details | 29.09.2025 | ||
| Semi-finals | Cerundolo J. M. | Noguchi R. | 2:0 (6:3, 6:2) | details | 22.09.2025 | ||
| Quarter-finals | Uchiyama Y. | Noguchi R. | 2:1 (5:7, 6:2, 6:4) | details | 05.09.2025 | ||
| 1/8-finals | Crawford O. | Noguchi R. | 1:2 (4:6, 6:1, 4:6) | details | 04.09.2025 | ||
| 1/16-finals | Noguchi R. | Watanuki Y. | 2:0 (6:4, 7:5) | details | 03.09.2025 | ||
| 1/8-finals | Uchida K. | Noguchi R. | 2:0 (6:1, 7:64) | details | 28.08.2025 | ||
| 1/16-finals | Xiao L. | Noguchi R. | 0:2 (66:7, 1:6) | details | 26.08.2025 | ||
| Quarter-finals | Faria J. | Noguchi R. | 2:1 (3:6, 6:4, 6:3) | details | 19.08.2025 | ||
| 1/8-finals | Noguchi R. | Wawrinka S. | 0:2 (3:6, 4:6) | details | 15.08.2025 | ||
| 1/16-finals | Llamas Ruiz P. | Noguchi R. | 0:1 RET. (4:6, 2:4) | details | 14.08.2025 | ||
| 1/16-finals | Draxl L. | Noguchi R. | CAN. | details | 14.08.2025 | ||
| Final | Noguchi R. | Watt J. | 2:0 (6:4, 6:4) | details | 12.08.2025 | ||
| Semi-finals | Noguchi R. | Ho R. | 2:1 (3:6, 7:62, 6:4) | details | 11.08.2025 | ||
| 1/8-finals | Galarneau A. | Noguchi R. | 2:0 (6:1, 6:4) | details | 23.07.2025 | ||
| 1/16-finals | Noguchi R. | Mochizuki S. | 1:0 RET. (6:4) | details | 22.07.2025 | ||
| 1/8-finals | Shimabukuro S. | Noguchi R. | 2:1 (6:3, 5:7, 6:2) | details | 17.07.2025 | ||
| 1/16-finals | Noguchi R. | Sekulic P. | 2:0 (6:2, 6:4) | details | 16.07.2025 | ||
| Quarter-finals | Noguchi R. | Draxl L. | 0:2 (1:6, 2:6) | details | 12.07.2025 | ||
| 1/8-finals | Noguchi R. | Arseneault N. | 2:0 (7:5, 6:2) | details | 10.07.2025 | ||
| 1/16-finals | Noguchi R. | Ilagan A. | 2:1 (6:3, 3:6, 6:1) | details | 08.07.2025 | ||
| 1/16-finals | Noguchi R. | Moriya H. | 1:2 (5:7, 6:2, 3:6) | details | 02.07.2025 | ||
| Quarter-finals | Noguchi R. | Zhou Y. | 0:2 (5:7, 2:6) | details | 06.06.2025 | ||
| 1/8-finals | Noguchi R. | Dostanic S. | 2:1 (5:7, 6:2, 6:1) | details | 04.06.2025 | ||
| 1/8-finals | Hazawa S./Vithoontien L. | Noguchi R./Tajima N. | 2:1 (7:65, 2:6, 10:8) | details | 18.11.2025 | ||
| 1/8-finals | Noguchi R./Tajima N. | Cook E./Sach T. | 1:2 (6:3, 5:7, 8:10) | details | 11.11.2025 | ||
| 1/8-finals | Noguchi R./Wang A. | Uesugi K./Watanabe S. | 1:2 (6:3, 0:6, 5:10) | details | 29.10.2025 | ||
| Quarter-finals | Noguchi R./Samrej K. | Reynolds F./Watt J. | 0:2 (1:6, 2:6) | details | 09.10.2025 | ||
| 1/8-finals | Isaro P./Kaliyanda Poonacha N. | Noguchi R./Samrej K. | 0:2 (5:7, 4:6) | details | 08.10.2025 | ||
| Quarter-finals | Isaro P./Kaliyanda Poonacha N. | Imamura M./Noguchi R. | 2:1 (7:5, 67:7, 10:5) | details | 28.08.2025 | ||
| 1/8-finals | Imamura M./Noguchi R. | Nakagawa S./Tajima N. | 2:0 (7:5, 7:63) | details | 27.08.2025 | ||
| Quarter-finals | Reynolds F./Watt J. | Imamura M./Noguchi R. | 2:1 (6:3, 3:6, 10:6) | details | 18.07.2025 | ||
| 1/8-finals | Imamura M./Noguchi R. | Ogura K./Saitoh K. | 2:0 (6:3, 7:5) | details | 16.07.2025 | ||
| Semi-finals | Imamura M./Noguchi R. | Nakagawa N./van Wyk K. | 0:2 (5:7, 4:6) | details | 11.07.2025 | ||
| Quarter-finals | Bouzige M./Ilagan A. | Imamura M./Noguchi R. | 1:2 (3:6, 6:4, 2:10) | details | 10.07.2025 | ||
| 1/8-finals | Matsuda R./Tajima N. | Imamura M./Noguchi R. | 0:2 (3:6, 4:6) | details | 10.07.2025 | ||
| Semi-finals | Isaro P./Noguchi R. | Harper P./Hilderbrand T. | 1:2 (3:6, 6:3, 3:10) | details | 04.07.2025 | ||
| Quarter-finals | Draxl L./Maginley J. | Isaro P./Noguchi R. | 0:2 (2:6, 63:7) | details | 04.07.2025 | ||
| 1/8-finals | Stevenson K./Tomic B. | Isaro P./Noguchi R. | 0:2 (5:7, 2:6) | details | 03.07.2025 | ||