| ITF W15 Kashiwa | 2023/06/05 01:00 | Honori Koyama v Kurumi Tamura | 6-7,3-6 |
| ITF W25 Karuizawa | 2023/05/22 00:30 | Honori Koyama v Ai Yamaguchi | 3-6,4-6 |
| ITF W15 Fukui | 2023/04/26 06:50 | Honori Koyama v Rinon Okuwaki | 2-6,2-6 |
| ITF W15 Fukui | 2023/04/25 01:00 | Britney Chiu v Honori Koyama | 2-6,3-6 |
| ITF W15 Fukui | 2023/04/24 01:00 | Sera Nishimoto v Honori Koyama | 4-6,2-6 |
| ITF W25 Osaka | 2023/04/10 01:00 | Eri Shimizu v Honori Koyama | 7-5,6-0 |
| ITF W15 Hinode | 2023/03/21 01:00 | Chisato Kanemaki v Honori Koyama | 2-6,1-6 |
| UTR Pro Miki Women | 2023/02/19 02:54 | Honori Koyama v Kaho Oyama | 4-6,6-2,6-0 |