USA: M25 Columbus, OH - Doubles - Main |
| Final | Mitsui S./Monday J. | Cash R./Nakashima B. N. | 0:2 (5:7, 610:7) | details | 18.11.2023 |
| Semi-finals | Filin N./Stearns P. | Cash R./Nakashima B. N. | 0:2 (0:6, 1:6) | details | 17.11.2023 |
| Quarter-finals | Murgett F./Pawlak P. | Cash R./Nakashima B. N. | 1:2 (3:6, 6:3, 12:14) | details | 16.11.2023 |
| 1/8-finals | Carpico B./Fuchs A. | Cash R./Nakashima B. N. | 0:2 (3:6, 2:6) | details | 15.11.2023 |
USA: M15 Lakewood, CA 2 - Doubles - Main |
| Final | Seggerman R./Trhac P. | Anthrop J./Nakashima B. N. | 2:0 (7:5, 6:2) | details | 15.07.2023 |
| Semi-finals | Nortey I./Thompkins J. | Anthrop J./Nakashima B. N. | 0:2 (5:7, 3:6) | details | 15.07.2023 |
| Quarter-finals | Menichella S./Revelli G. | Anthrop J./Nakashima B. N. | 0:2 (2:6, 4:6) | details | 13.07.2023 |
| 1/8-finals | McKennon M./Petrov A. | Anthrop J./Nakashima B. N. | 0:2 (2:6, 0:6) | details | 12.07.2023 |
USA: M15 Irvine, CA - Doubles - Main |
| Final | Goodger J./Summers M. | Nakashima B. N./Tien L. | 0:2 (4:6, 2:6) | details | 01.07.2023 |
| Semi-finals | Nakashima B. N./Tien L. | Thompkins J./Vance J. | 2:0 (6:1, 6:3) | details | 01.07.2023 |
| Quarter-finals | Nakashima B. N./Tien L. | Moreno D./Strode E. | 2:0 (6:4, 6:2) | details | 30.06.2023 |
| 1/8-finals | Ilagan A./Revelli G. | Nakashima B. N./Tien L. | 0:2 (63:7, 4:6) | details | 28.06.2023 |
USA: M15 San Diego, CA 2 - Doubles - Main |
| Final | Markes C./Rogers A. | Nakashima B. N./Vandecasteele Q. | 2:0 (6:4, 6:4) | details | 17.06.2023 |
| Semi-finals | Nakashima B. N./Vandecasteele Q. | Al Allaf K./Tyler J. | 2:0 (6:4, 7:5) | details | 17.06.2023 |
| Quarter-finals | Nakashima B. N./Vandecasteele Q. | Asaba A./Harper M. | 2:0 (6:3, 6:4) | details | 16.06.2023 |
| 1/8-finals | Murali R./Strode E. | Nakashima B. N./Vandecasteele Q. | 0:2 (5:7, 2:6) | details | 15.06.2023 |
USA: M15 San Diego, CA - Doubles - Main |
| Semi-finals | Nakashima B. N./Swenson B. | De Jonge D./Rogers A. | 1:2 (6:1, 1:6, 3:10) | details | 10.06.2023 |
| Quarter-finals | Nakashima B. N./Swenson B. | Brumm J./Soto M. | 2:1 (4:6, 6:4, 10:7) | details | 09.06.2023 |
| 1/8-finals | Murali R./Strode E. | Nakashima B. N./Swenson B. | 1:2 (6:3, 3:6, 7:10) | details | 07.06.2023 |
USA: M15 Rancho Santa Fe, CA - Doubles - Main |
| Final | McHugh A./Smith K. | Anthrop J./Nakashima B. N. | 0:2 (1:6, 4:6) | details | 04.06.2023 |
| Semi-finals | Anthrop J./Nakashima B. N. | Aguilar J. C. M./Tyler J. | 2:1 (7:61, 1:6, 10:4) | details | 03.06.2023 |
| Quarter-finals | Anthrop J./Nakashima B. N. | Blake J./Rivera H. | 2:1 (63:7, 7:5, 11:9) | details | 02.06.2023 |
| 1/8-finals | Anthrop J./Nakashima B. N. | Pereira B./Zahraj P. | 2:1 (7:65, 3:6, 10:7) | details | 01.06.2023 |
USA: M25 Bakersfield, CA - Doubles - Main |
| 1/8-finals | Bolt A./Walton A. | Nakashima B. N./Thompson W. C. | 2:1 (6:2, 4:6, 10:8) | details | 17.03.2023 |
USA: M25 Malibu, CA - Doubles - Main |
| 1/8-finals | Menichella S./Thompkins J. | Nakashima B. N./Rivera H. | CAN. | details | 06.01.2023 |
USA: M25 Columbus, OH 2 - Doubles - Main |
| Quarter-finals | Kingsley C./Nakashima B. N. | Charlton J./Vandecasteele Q. | 1:2 (6:4, 3:6, 9:11) | details | 17.11.2022 |
| 1/8-finals | Kingsley C./Nakashima B. N. | Jayaram V./Lada P. | 2:0 (6:0, 6:0) | details | 15.11.2022 |
USA: US Open - Doubles - Main |
| 1/8-finals | Nakashima B. N./Rivera H. | Bueno G./Buse I. | 0:2 (1:6, 3:6) | details | 08.09.2022 |
| 1/16-finals | Nakashima B. N./Rivera H. | Coman M. A./Matsuoka H. | 2:1 (6:2, 4:6, 10:3) | details | 06.09.2022 |
Mexico: M15 Cancun 11 - Doubles - Main |
| 1/8-finals | Frances Tessari E./Moheno Y. E. | Nakashima B. N./Sher A. | 2:1 (6:4, 5:7, 10:5) | details | 16.08.2022 |
USA: M15 Lakewood, CA - Doubles - Main |
| Final | Nakashima B. N./Swenson B. | Nava E./Ponwith N. | 1:2 (3:6, 6:2, 4:10) | details | 17.07.2022 |