Stadium: Court 10 Round: 54 Ground: Clay
| ITF Women Solarino | 2018/03/02 09:30 | Koelzer, Romy v Pirazhenka, Sviatlana | 7-6,4-6,4-6 |
| ITF W25 Den Haag | 2019/07/01 09:30 | Koelzer, Romy v Karregat, Dominique | 6-3,6-1 |
| ITF W25 Darmstadt | 2019/06/25 16:00 | Koelzer, Romy v Piter, Katarzyna | 5-7,6-2,2-6 |
| ITF W25 Ystad | 2019/06/19 10:25 | Koelzer, Romy v Hogenkamp, Richel | 1-6,4-6 |
| Obidos, Singles Qualifying W-ITF-POR-01A | 2019/05/14 14:30 | Koelzer, Romy v Marina Bassols Ribera | 5-7,7-5,0-6 |
| Obidos, Singles Qualifying W-ITF-POR-01A | 2019/05/08 15:05 | Carreras, Amanda v Koelzer, Romy | 6-3,6-4 |
| ITF W25 Santa Margherita | 2019/05/01 16:30 | Matvienko, Lisa v Koelzer, Romy | 6-1,1-6,6-1 |
| Chiasso, Singles W-ITF-SUI-01A | 2019/04/24 07:15 | Stephanie Wagner v Koelzer, Romy | 6-0,6-2 |
| Chiasso, Singles W-ITF-SUI-01A | 2019/04/22 13:50 | Koelzer, Romy v Anne Schaefer | 6-2,6-3 |
| ITF W25 Den Haag | 2019/07/01 09:30 | Jasmijn Gimbrere v Pirazhenka, Sviatlana | 6-4,2-6,7-10 |
| ITF W15 Alkmaar | 2019/06/26 15:05 | Pirazhenka, Sviatlana v Halemai, Mylene | 3-6,2-6 |
| Minsk, Singles W-ITF-BLR-03A | 2019/06/11 07:00 | Pirazhenka, Sviatlana v Perper, Alexandra | 5-7,0-6 |
| Minsk, Singles W-ITF-BLR-03A | 2019/06/10 11:55 | Pirazhenka, Sviatlana v Ekaterina Ovcharenko | 6-4,6-4 |
| Tunis, Singles W-ITF-TUN-21A | 2019/04/10 10:00 | Yasmine Mansouri v Pirazhenka, Sviatlana | 3-6,6-3,6-2 |
| Tunis, Singles W-ITF-TUN-21A | 2019/04/09 11:25 | Pirazhenka, Sviatlana v Mihaela Djakovic | 6-4,6-4 |
| Tunis, Singles W-ITF-TUN-21A | 2019/04/08 12:30 | Pirazhenka, Sviatlana v Mahbouli, Feriel | 3-6,7-5,10-7 |
| ITF W25 Kazan | 2019/03/12 07:00 | Pirazhenka, Sviatlana v Freya Christie | 3-6,6-7 |