Portugal: M25 Vale do Lobo - Singles - Main |
| 1/16-finals | Nakagawa N. | Barroso Campos A. | CAN. | details | 12.03.2024 |
Portugal: M25 Quinta Do Lago - Singles - Main |
| 1/8-finals | Nakagawa N. | Elias G. | 1:1 RET. (64:7, 7:5, 3:4) | details | 08.03.2024 |
| 1/16-finals | Ferrari G. | Nakagawa N. | 0:2 (1:6, 3:6) | details | 05.03.2024 |
Thailand: Nonthaburi 2 - Singles - Qualification |
| Semi-finals | Nakagawa N. | Te R. | 1:2 (6:4, 1:6, 4:6) | details | 07.01.2024 |
Thailand: Nonthaburi - Singles - Qualification |
| Semi-finals | Tseng C. H. | Nakagawa N. | 2:0 (6:3, 6:3) | details | 31.12.2023 |
Japan: Yokkaichi - Singles - Main |
| 1/16-finals | Nakagawa N. | Wong C. | 1:2 (2:6, 7:65, 4:6) | details | 27.11.2023 |
Japan: Yokohama - Singles - Main |
| 1/16-finals | Nakagawa N. | Martin A. | 1:2 (65:7, 6:1, 2:6) | details | 21.11.2023 |
Japan: Yokohama - Singles - Qualification |
| Final | Erhard M. | Nakagawa N. | 1:2 (6:4, 3:6, 4:6) | details | 20.11.2023 |
| Semi-finals | Takahashi Y. | Nakagawa N. | 0:2 (5:7, 66:7) | details | 19.11.2023 |
Japan: Kobe - Singles - Qualification |
| Semi-finals | Ellis B. | Nakagawa N. | 2:1 (6:2, 66:7, 7:64) | details | 12.11.2023 |
Japan: Matsuyama - Singles - Main |
| 1/16-finals | Nakagawa N. | Mochizuki S. | 0:2 (2:6, 2:6) | details | 07.11.2023 |
Japan: Matsuyama - Singles - Qualification |
| Final | Nakagawa N. | Takahashi Y. | 2:0 (6:3, 6:2) | details | 06.11.2023 |
| Semi-finals | Nakagawa N. | Oki Y. | 2:0 (6:4, 6:2) | details | 05.11.2023 |
Australia: Sydney - Singles - Main |
| 1/16-finals | Moriya H. | Nakagawa N. | 2:0 (6:3, 7:68) | details | 31.10.2023 |
Australia: Playford 2 - Singles - Main |
| 1/8-finals | Hong S. C. | Nakagawa N. | 2:0 (6:3, 6:3) | details | 26.10.2023 |
| 1/16-finals | Mott B. | Nakagawa N. | 1:2 (7:5, 1:6, 3:6) | details | 23.10.2023 |
Japan: Tokyo - Singles - Qualification |
| Semi-finals | Hijikata R. | Nakagawa N. | 2:0 (6:4, 7:5) | details | 14.10.2023 |
Japan: M25 Takasaki - Singles - Main |
| Final | Nakagawa N. | Ochi M. | 2:0 (6:2, 7:65) | details | 24.09.2023 |
| Semi-finals | Nakagawa N. | Fukuda S. | 2:0 (7:5, 6:3) | details | 23.09.2023 |
| Quarter-finals | Nakagawa N. | Shiraishi H. | 2:1 (1:6, 6:0, 7:5) | details | 22.09.2023 |
| 1/8-finals | Nakagawa N. | Sumizawa D. | 2:0 (7:5, 6:4) | details | 21.09.2023 |
| 1/16-finals | Nakagawa N. | Watanabe S. | 2:0 (6:3, 6:2) | details | 20.09.2023 |
Japan: M25 Sapporo 2 - Singles - Main |
| Final | Nakagawa N. | Nishiwaki K. | 2:1 (4:6, 6:1, 6:4) | details | 17.09.2023 |
| Semi-finals | Nakagawa N. | Matsuoka H. | 2:0 (6:2, 6:2) | details | 16.09.2023 |
| Quarter-finals | Nakagawa N. | Matsuda K. | 2:0 (6:4, 6:2) | details | 15.09.2023 |
| 1/8-finals | Nakagawa N. | Watanabe S. | 2:0 (6:3, 6:2) | details | 15.09.2023 |
| 1/16-finals | Nakagawa N. | Kusuhara Y. | 2:0 (6:2, 7:63) | details | 13.09.2023 |
Japan: M25 Sapporo - Singles - Main |
| Semi-finals | Nakagawa N. | Sekiguchi S. | 1:2 (7:5, 3:6, 5:7) | details | 09.09.2023 |
| Quarter-finals | Nakagawa N. | Isomura K. | 2:0 (6:2, 6:0) | details | 08.09.2023 |
| 1/8-finals | Nakagawa N. | Wakita S. | 2:1 (4:6, 6:2, 6:0) | details | 07.09.2023 |
| 1/16-finals | Nakagawa N. | Honda N. | 2:0 (7:66, 6:4) | details | 06.09.2023 |
Hong Kong: M25 Hong Kong - Singles - Main |
| Quarter-finals | Nakagawa N. | Moundir A. | 1:2 (2:6, 6:4, 6:10) | details | 03.09.2023 |
| 1/8-finals | Nakagawa N. | Saitoh K. | 2:1 (6:4, 61:7, 6:1) | details | 31.08.2023 |
| 1/16-finals | Nakagawa N. | Wong Hong K. J. | 2:0 (7:65, 6:3) | details | 30.08.2023 |
USA: M25 Decatur, IL - Singles - Main |
| Final | Nakagawa N. | Hanzlik C. | 1:2 (6:4, 1:6, 4:6) | details | 06.08.2023 |
| Semi-finals | Nakagawa N. | Braswell J. | 2:1 (6:2, 4:6, 6:1) | details | 05.08.2023 |
| Quarter-finals | Nakagawa N. | Al Allaf K. | 2:0 (7:60, 6:3) | details | 04.08.2023 |
| 1/8-finals | Nakagawa N. | Vandecasteele Q. | 2:0 (6:4, 6:1) | details | 03.08.2023 |
| 1/16-finals | Nakagawa N. | Tonejc V. | 2:0 (6:3, 7:63) | details | 02.08.2023 |
USA: M25 Edwardsville, IL - Singles - Main |
| Quarter-finals | Vandecasteele Q. | Nakagawa N. | 2:0 (6:4, 6:1) | details | 28.07.2023 |
| 1/8-finals | Braswell M. | Nakagawa N. | 0:2 (4:6, 4:6) | details | 28.07.2023 |
| 1/16-finals | Petrov A. | Nakagawa N. | 1:2 (7:65, 2:6, 3:6) | details | 27.07.2023 |
USA: M25 Champaign, IL - Singles - Main |
| Semi-finals | Nakagawa N. | McHugh A. | 0:2 (4:6, 4:6) | details | 22.07.2023 |
| Quarter-finals | Miyoshi K. | Nakagawa N. | 0:2 (2:6, 4:6) | details | 21.07.2023 |