Stadium: Court 12 Round: 45 Ground: Hardcourt outdoor
| Mildura, Simples W-ITF-AUS-06A | 2019/03/06 00:00 | Koelzer, Romy v Tammi Patterson | 6-7,7-5,2-6 |
| ITF W25 Trnava | 2019/02/12 09:00 | Laura Ioana Paar v Koelzer, Romy | 6-3,6-0 |
| ITF W25 Trnava | 2019/02/11 10:00 | Koelzer, Romy v Sabino, Lisa | 7-5,6-1 |
| ITF Women Norman | 2018/11/14 17:45 | Koelzer, Romy v Yuriko Lily Miyazaki | 3-6,3-6 |
| ITF Women Lawrence | 2018/11/09 20:00 | Caty McNally v Koelzer, Romy | 6-3,6-3 |
| ITF Women Lawrence | 2018/11/08 17:45 | Koelzer, Romy v Emma Navarro | 7-5,6-2 |
| ITF Women Lawrence | 2018/11/07 15:00 | Koelzer, Romy v Perper, Alexandra | 6-4,7-5 |
| ITF Women Lawrence | 2018/11/06 15:00 | Nefedova, Anastasia Evgenyevna v Koelzer, Romy | 2-6,5-7 |
| Mildura, Simples W-ITF-AUS-06A | 2019/03/03 23:00 | Valentina Ivanov v Jovanovic, Masa | 6-7,5-7 |
| Port Pirie, Simples W-ITF-AUS-04A | 2019/02/13 23:30 | Valentina Ivanov v Marshall, Amber | 2-6,4-6 |
| Port Pirie, Simples W-ITF-AUS-04A | 2019/02/12 01:20 | Valentina Ivanov v Friant, Eimi | 6-0,6-1 |
| WTA Auckland | 2018/12/29 23:30 | Valentina Ivanov v Bibiane Schoofs | 4-6,0-6 |
| WTA Auckland | 2018/12/28 23:50 | Valentina Ivanov v Hourigan, Paige Mary | 4-6,6-3,6-3 |
| ITF Women Brussels | 2018/07/19 11:00 | Chernyshova, Maryna v Valentina Ivanov | 7-6,6-2 |
| ITF Women Brussels | 2018/07/17 13:00 | Glaude, Laure Line v Valentina Ivanov | 1-6,6-4,2-6 |
| ITF Women Brussels Qual | 2018/07/16 09:00 | Vicky Van De Peer v Valentina Ivanov | 5-7,3-6 |