Stadium: Hard C7 Round: 26 Ground: Clay
| ITF - W15 Antalya | 2019/12/18 09:55 | Terteac, Olga v Katarina Kozarov | 0-6,0-6 |
| ITF - W15 Antalya | 2019/12/12 12:00 | Katarina Kozarov v Kruzhkova, Daria | 5-7,7-5,2-6 |
| ITF W15 Cancun | 2019/08/23 14:00 | Haine Ogata v Katarina Kozarov | 6-3,6-4 |
| ITF W15 Cancun | 2019/08/22 17:50 | Katarina Kozarov v Lindh Gallagher, Emilie | 6-2,7-5 |
| ITF W15 Cancun | 2019/08/21 18:10 | Amanda C Nava Elkin v Katarina Kozarov | 1-6,0-6 |
| ITF W15 Cancun | 2019/08/19 20:00 | Carruthers, Steffi v Katarina Kozarov | 6-3,4-6,5-10 |
| ITF W15 Cancun | 2019/08/15 18:50 | Eri Shimizu v Katarina Kozarov | 6-3,7-5 |
| ITF W15 Cancun | 2019/08/14 18:20 | Katarina Kozarov v van Nguyen, Chanelle | 2-6,6-1,6-4 |
| ITF - W15 Antalya | 2019/12/18 11:00 | Sakura Hosogi v Kruzhkova, Daria | 6-4,6-3 |
| ITF - W15 Antalya | 2019/12/15 12:15 | Sakura Hosogi v Ekaterina Kazionova | 5-7,6-7 |
| ITF - W15 Antalya | 2019/12/12 12:15 | Sakura Hosogi v Pribylova, Anna | 2-6,6-2,6-1 |
| Hua Hin, Simples W-ITF-THA-10A | 2019/10/19 03:00 | Moyuka Uchijima v Sakura Hosogi | 6-1,6-2 |
| Hua Hin, Simples W-ITF-THA-10A | 2019/10/18 03:00 | Sakura Hosogi v Liu, Chang | 6-2,7-5 |
| Hua Hin, Simples W-ITF-THA-10A | 2019/10/17 04:50 | Black, Hurricane Tyra v Sakura Hosogi | 4-6,2-6 |
| Hua Hin, Simples W-ITF-THA-10A | 2019/10/10 04:55 | Sakura Hosogi v Momkoonthod, Tamachan | 1-6,3-6 |
| Hua Hin, Simples W-ITF-THA-10A | 2019/10/09 08:10 | Chanta, Aunchisa v Sakura Hosogi | 6-3,2-6,2-6 |