Stadium: Court 1 Round: 54 Ground: Hardcourt indoor
| ITF W60 Nantes | 2019/10/28 09:00 | Gravouil, Theo v Sizikova, Yana | 6-3,7-6 |
| WTA Tashkent | 2019/09/21 10:20 | Tereza Martincova v Sizikova, Yana | 6-3,6-0 |
| Changsha, Simples W-ITF-CHN-19A | 2019/09/05 02:00 | Natalija Stevanovic v Sizikova, Yana | 6-3,6-0 |
| Changsha, Simples W-ITF-CHN-19A | 2019/09/04 03:45 | Sizikova, Yana v Oleksandra Oliynykova | 6-3,6-4 |
| Jinan, Qualifications Simples W-ITF-CHN-18A | 2019/08/26 09:00 | Liu, Chang v Sizikova, Yana | 6-4,6-1 |
| ITF W60 Hechingen | 2019/08/08 13:00 | Sizikova, Yana v Paar, Laura-Ioana | 3-6,2-6 |
| ITF W60 Hechingen | 2019/08/08 08:00 | Sizikova, Yana v Anna Gabric | 6-0,4-6,6-2 |
| ITF W25 Perigueux | 2019/06/27 07:00 | Harmony Tan v Sizikova, Yana | 6-4,6-2 |
| ITF W80 Poitiers | 2019/10/23 08:00 | Angelica Moratelli v Diana Marcinkevica | 6-4,2-6,4-6 |
| ITF W80 Poitiers | 2019/10/22 12:05 | Alice Rame v Angelica Moratelli | 3-6,4-6 |
| ITF W80 Poitiers | 2019/10/21 15:20 | Alicia Martial v Angelica Moratelli | 1-6,0-6 |
| ITF W25 Santa Margherita | 2019/10/10 12:10 | Nadia Podoroska v Angelica Moratelli | 6-0,6-2 |
| ITF W25 Santa Margherita | 2019/10/09 14:15 | Angelica Moratelli v Hozumi, Eri | 6-1,2-6,6-2 |
| ITF W25 Santa Margherita | 2019/10/08 10:30 | Nuria Brancaccio v Angelica Moratelli | 6-1,2-6,4-6 |
| ITF W25 Santa Margherita Qual | 2019/10/07 13:45 | Angelica Moratelli v Husaric, Anita | 6-1,6-3 |
| ITF W25 Santa Margherita | 2019/10/04 12:00 | Angelica Moratelli v Pereira, Teliana | 6-3,1-6,3-6 |