Stadium: Court 5 Round: 54 Ground: Hardcourt outdoor
| ITF W15 Cancun | 2019/08/28 14:00 | Haine Ogata v Lindh Gallagher, Emilie | 6-7,6-4,3-6 |
| ITF W15 Cancun | 2019/08/24 14:00 | Contreras Gomez, Fernanda v Haine Ogata | 6-3,7-5 |
| ITF W15 Cancun | 2019/08/23 14:00 | Haine Ogata v Katarina Kozarov | 6-3,6-4 |
| ITF W15 Cancun | 2019/08/22 14:15 | Ingrid Gamarra Martins v Haine Ogata | 2-6,3-6 |
| ITF W15 Cancun | 2019/08/21 20:35 | Haine Ogata v Gomez, Maria | 6-0,6-0 |
| ITF W15 Cancun | 2019/08/15 17:20 | Haine Ogata v Ingrid Gamarra Martins | 6-2,4-6,4-6 |
| ITF W15 Cancun | 2019/07/30 14:30 | Christensen, Elle v Haine Ogata | 6-3,6-3 |
| ITF W15 Cancun | 2019/07/23 17:15 | Tiphanie Lemaitre v Haine Ogata | 4-6,6-3,7-6 |
| Hua Hin, Simples W-ITF-THA-10A | 2019/10/07 05:20 | Sudsaard, Kanyanut v Yamaguchi, Ai | 0-6,0-6 |
| Anning, Singles Qualifying W-ITF-CHN-22A | 2019/09/22 05:20 | Soha Sadiq v Yamaguchi, Ai | 6-4,6-4 |
| Jakarta, Singles W-ITF-INA-02A | 2019/06/26 05:00 | Yamaguchi, Ai v Aldila Sutjiadi | 4-6,0-6 |
| Jakarta, Singles W-ITF-INA-02A | 2019/06/25 05:15 | Yamaguchi, Ai v Jamal, Sara | 6-0,6-1 |
| Kurume, Singles W-ITF-JPN-11A | 2019/05/13 00:30 | Yamaguchi, Ai v Tanaka, Yuuki | 2-6,0-6 |
| ITF Women Iizuka Qual | 2016/09/25 04:00 | Nunome, Chihiro v Yamaguchi, Ai | 6-0,6-2 |