 Qatar: M15 Doha - Doubles - Main |
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| 1/8-finals | Horoz A./Ilkel C. | Hayashi K./Valsecchi P. | 2:0 (6:2, 6:2) | dettagli | 14.01.2025 |
 New Zealand: M15 Tauranga - Doubles - Main |
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| 1/8-finals | Hayashi K./Ryan Ziegann S. | Matta A./Taylor A. | 1:2 (7:5, 3:6, 7:10) | dettagli | 17.12.2024 |
| New Zealand: M15 Wellington - Doubles - Main |
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| 1/8-finals | Hayashi K./Voisin A. | Court J./Hoole C. | 0:2 (1:6, 1:6) | dettagli | 10.12.2024 |
 Japan: M15 Yanagawa City - Doubles - Main |
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| 1/8-finals | Hayashi K./Yamanaka T. | Fukuda S./Kawahashi Y. | 0:2 (1:6, 62:7) | dettagli | 30.10.2024 |
| Japan: M15 Tanagura - Doubles - Main |
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| 1/8-finals | Choe J./Shin W. | Chaiyarin C./Hayashi K. | 2:0 (6:3, 7:5) | dettagli | 22.10.2024 |
| Japan: M25 Takasaki - Doubles - Main |
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| 1/8-finals | Watanabe S./Takeru Y. | Hayashi K./Takamisawa T. | 2:0 (6:3, 6:0) | dettagli | 18.09.2024 |
| Japan: M15 Tokyo 2 - Doubles - Main |
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| 1/8-finals | Kono Y./Kusuhara Y. | Hayashi K./Jang Y. | 2:1 (5:7, 6:2, 10:8) | dettagli | 09.07.2024 |
 Guam: M15 Harmon - Doubles - Main |
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| Quarter-finals | Fukuda S./Isomura K. | Hayashi K./Kusuhara Y. | 2:0 (6:3, 6:4) | dettagli | 06.06.2024 |
| 1/8-finals | Hayashi K./Kusuhara Y. | Atturu B. S./Schembari A. | 2:0 (6:2, 6:0) | dettagli | 04.06.2024 |
| Japan: M15 Karuizawa - Doubles - Main |
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| 1/8-finals | Kusuhara Y./Nakagawa S. | Hayashi K./Sugaya Y. | 2:1 (7:5, 3:6, 10:5) | dettagli | 29.05.2024 |