Stadium: COURT F Round: 25 Ground: Synthetic outdoor
| ITF W25 Makinohara | 2019/10/08 02:40 | Funa Kozaki v Nana Kawagishi | 6-1,6-0 |
| Brisbane, Simples W-ITF-AUS-11A | 2019/09/30 00:00 | Funa Kozaki v Gabriella Da Silva Fick | 2-6,1-6 |
| Brisbane, Simples W-ITF-AUS-11A | 2019/09/29 02:00 | Fowler, Jessica v Funa Kozaki | 2-6,0-6 |
| Anning, Singles W-ITF-CHN-22A | 2019/09/17 03:30 | Oleksandra Oliynykova v Funa Kozaki | 6-3,7-6 |
| Anning, Singles W-ITF-CHN-22A | 2019/09/10 02:30 | Funa Kozaki v Cao, Xue | 4-6,0-6 |
| Tsukuba, Singles W-ITF-JPN-13A | 2019/08/19 02:35 | Takahata, Kotomi v Funa Kozaki | 6-1,6-2 |
| Taipei, Singles W-ITF-TPE-01A | 2019/08/01 04:10 | Sohyun Park v Funa Kozaki | 6-4,6-3 |
| Taipei, Singles W-ITF-TPE-01A | 2019/07/31 03:45 | Zeel Desai v Funa Kozaki | 6-4,3-6,1-6 |
| Hua Hin, Simples W-ITF-THA-10A | 2019/07/12 03:00 | Brouleau, Lou v Mei Yamaguchi | 5-7,6-3,7-6 |
| Hua Hin, Simples W-ITF-THA-10A | 2019/07/11 03:00 | Feder, Ambre v Mei Yamaguchi | 1-6,2-6 |
| Hua Hin, Simples W-ITF-THA-10A | 2019/07/10 03:00 | Lunda Kumhom v Mei Yamaguchi | 5-7,2-6 |
| Hua Hin, Simples W-ITF-THA-10A | 2019/07/05 04:30 | Brouleau, Lou v Mei Yamaguchi | 6-3,6-3 |
| Hua Hin, Simples W-ITF-THA-10A | 2019/07/04 05:20 | Zhuoma Ni Ma v Mei Yamaguchi | 2-6,2-6 |
| Hua Hin, Simples W-ITF-THA-10A | 2019/07/03 04:00 | Himari Sato v Mei Yamaguchi | 3-6,4-6 |
| Karuizawa, Singles W-ITF-JPN-12A | 2019/05/23 04:20 | Emina Bektas v Mei Yamaguchi | 6-1,6-4 |
| Karuizawa, Singles W-ITF-JPN-12A | 2019/05/22 01:00 | Mei Yamaguchi v Michika Ozeki | 6-2,6-3 |