Hong Kong: M15 Hong Kong 2 - Doubles - Main |
| Quarter-finals | Auytayakul S./Samrej K. | Masabayashi T./Tajima N. | 2:1 (6:1, 3:6, 13:11) | details | 20.06.2024 |
| 1/8-finals | Cheng J./Ng K. L. | Masabayashi T./Tajima N. | 1:2 (6:4, 1:6, 2:10) | details | 18.06.2024 |
Hong Kong: M15 Hong Kong - Doubles - Main |
| Final | Rai A./Reddy R. | Masabayashi T./Suksumrarn T. | 0:2 (3:6, 5:7) | details | 16.06.2024 |
| Semi-finals | Sueoka Y./Sumizawa D. | Masabayashi T./Suksumrarn T. | 1:2 (3:6, 6:3, 7:10) | details | 14.06.2024 |
| Quarter-finals | Inui Y./Nishiwaki K. | Masabayashi T./Suksumrarn T. | 0:2 (63:7, 64:7) | details | 13.06.2024 |
| 1/8-finals | Masabayashi T./Suksumrarn T. | Delaney Ja./Delaney Je. | 2:0 (6:4, 6:4) | details | 11.06.2024 |
Guam: M15 Harmon - Doubles - Main |
| Semi-finals | Masabayashi T./Tajima N. | Ito T./Kono Y. | 1:2 (7:65, 4:6, 6:10) | details | 07.06.2024 |
| Quarter-finals | Arcon A./Osmont G. | Masabayashi T./Tajima N. | 0:2 (4:6, 4:6) | details | 06.06.2024 |
| 1/8-finals | Voisin A./Yam C. | Masabayashi T./Tajima N. | 0:2 (2:6, 0:6) | details | 04.06.2024 |
Japan: M15 Karuizawa - Doubles - Main |
| Semi-finals | Delaney Ja./Delaney Je. | Masabayashi T./Shin W. | 2:1 (4:6, 6:1, 10:8) | details | 01.06.2024 |
| Quarter-finals | Masabayashi T./Shin W. | Imamura M./Tajima N. | 2:1 (6:4, 4:6, 10:8) | details | 30.05.2024 |
| 1/8-finals | Leong M. W. K./Matsumura R. | Masabayashi T./Shin W. | 0:2 (2:6, 0:6) | details | 29.05.2024 |
Japan: M15 Kashiwa - Doubles - Main |
| 1/8-finals | Kumasaka T./Vithoontien L. | Masabayashi T./Yang J. | 2:0 (6:3, 6:2) | details | 02.04.2024 |
Japan: M15 Tsukuba - Doubles - Main |
| Semi-finals | Ho R./Nam Ji S. | Huang T./Masabayashi T. | 2:1 (6:4, 2:6, 10:7) | details | 29.03.2024 |
| Quarter-finals | Lee J. M./Song M.-K. | Huang T./Masabayashi T. | 1:2 (3:6, 6:4, 8:10) | details | 28.03.2024 |
| 1/8-finals | Huang T./Masabayashi T. | Nishiwaki K./Shin W. | 2:1 (6:2, 3:6, 11:9) | details | 27.03.2024 |
Japan: M15 Nishi-Tokyo - Doubles - Main |
| 1/8-finals | Masabayashi T./Matsuda K. | Kono Y./Nishiwaki K. | 0:2 (3:6, 4:6) | details | 19.03.2024 |
Japan: M15 Hinode - Doubles - Main |
| 1/8-finals | Masabayashi T./Taguchi R. | Fukuda S./Mochizuki Y. | 1:2 (6:2, 1:6, 4:10) | details | 14.03.2024 |
Japan: M15 Yanagawa - Doubles - Main |
| 1/8-finals | Kono Y./Masabayashi T. | Hara Friend J. D./Miyoshi K. | 0:2 (2:6, 3:6) | details | 22.12.2023 |
Australia: M25 Gold Coast - Doubles - Main |
| 1/8-finals | Delaney Ja./Imai S. | Masabayashi T./Sumizawa D. | 2:0 (6:3, 6:4) | details | 30.11.2023 |
Australia: M25 Brisbane - Doubles - Main |
| 1/8-finals | Masabayashi T./Yamasaki J. | Klintcharov A./Talic Z. | 0:2 (3:6, 63:7) | details | 23.11.2023 |
China: Shenzhen 3 - Doubles - Main |
| 1/8-finals | Bu Y./Te R. | Inui Y./Masabayashi T. | 2:0 (6:0, 7:61) | details | 17.10.2023 |
Japan: M25 Takasaki - Doubles - Main |
| 1/8-finals | Watanabe S./Takeru Y. | Masabayashi T./Taguchi R. | 2:0 (7:63, 6:4) | details | 20.09.2023 |
Japan: M25 Sapporo 2 - Doubles - Main |
| 1/8-finals | Kono Y./Kusuhara Y. | Masabayashi T./Matsuda K. | 2:0 (6:3, 6:2) | details | 13.09.2023 |
Japan: M25 Sapporo - Doubles - Main |
| 1/8-finals | Kono Y./Nakagawa N. | Masabayashi T./Shiraishi H. | 2:1 (6:2, 4:6, 13:11) | details | 06.09.2023 |
Taiwan: M25 Tainan 2 - Doubles - Main |
| Quarter-finals | Ochi M./Takeru Y. | Masabayashi T./Matsuda K. | 2:0 (6:3, 7:5) | details | 24.08.2023 |