Stadium: Court 9 Round: 25 Ground: Clay
| ITF Women Wuhan | 2018/05/17 02:00 | Mari Osaka v Hanyu Guo | 4-6,6-3,5-7 |
| ITF W60 Templeton | 2019/09/23 16:00 | Hanyu Guo v Ingrid Gamarra Martins | 4-6,4-6 |
| ITF W60 Changsha | 2019/09/07 03:40 | Aleksandrina Naydenova v Hanyu Guo | 6-2,6-4 |
| ITF W60 Changsha | 2019/09/06 03:55 | Hanyu Guo v Zuzana Zlochova | 3-6,7-5,7-5 |
| ITF W60 Changsha | 2019/09/05 03:35 | Amy Zhu v Hanyu Guo | 6-7,7-6,2-6 |
| ITF W60 Changsha | 2019/09/04 09:15 | Aldila Sutjiadi v Hanyu Guo | 6-3,4-6,4-6 |
| ITF W60 Jinan | 2019/08/29 02:00 | Hanyu Guo v Aleksandrina Naydenova | 3-6,6-4,2-6 |
| ITF W60 Jinan | 2019/08/28 02:00 | Hanyu Guo v Su Jeong Jang | 7-5,6-4 |
| ITF W60 Jinan | 2019/08/27 02:00 | Hanyu Guo v Angelina Gabueva | 5-7,6-3,10-6 |
| ITF W60 Saint-Malo | 2019/09/17 13:25 | Mari Osaka v Lucie Wargnier | 4-6,2-6 |
| ITF W25 St. Poelten | 2019/09/10 10:05 | Mari Osaka v Caroline Werner | 2-6,1-6 |
| ITF W60 Montreux | 2019/09/06 14:50 | Alice Rame v Mari Osaka | 6-0,6-4 |
| ITF W60 Montreux | 2019/09/05 10:30 | Mari Osaka v Mandy Minella | 6-1,3-6,6-4 |
| ITF W60 Montreux | 2019/09/04 08:00 | Fiona Ganz v Mari Osaka | 4-6,2-6 |
| ITF W25 Guayaquil | 2019/08/21 15:00 | Mari Osaka v Camila Romero | 6-2,5-7,4-6 |
| ITF W25 Guayaquil | 2019/08/16 18:15 | Gabriela Talaba v Mari Osaka | 6-4,6-3 |
| ITF W25 Guayaquil | 2019/08/15 15:00 | Maria Jose Portillo Ramirez v Mari Osaka | 3-6,2-6 |