Stadium: Show Court 8 Round: 45 Ground: Hardcourt outdoor
| ITF W25 Canberra | 2019/03/19 23:00 | Jaimee Fourlis v Romy Koelzer | 2-6,6-3,6-0 |
| ITF W25 Canberra | 2019/03/18 23:00 | Romy Koelzer v Chieh-Yu Hsu | 6-1,6-3 |
| ITF W25 Canberra | 2019/03/17 23:00 | Romy Koelzer v Valentina Ivanov | 6-4,3-6,10-5 |
| ITF W25 Mildura | 2019/03/06 00:00 | Romy Koelzer v Tammi Patterson | 6-7,7-5,2-6 |
| ITF W25 Trnava | 2019/02/12 09:00 | Laura Ioana Paar v Romy Koelzer | 6-3,6-0 |
| ITF W25 Trnava | 2019/02/11 10:00 | Romy Koelzer v Lisa Sabino | 7-5,6-1 |
| ITF Women Norman | 2018/11/14 17:45 | Romy Koelzer v Yuriko Lily Miyazaki | 3-6,3-6 |
| ITF Women Lawrence | 2018/11/09 20:00 | Caty McNally v Romy Koelzer | 6-3,6-3 |
| ITF Women Canberra | 2018/10/28 03:00 | Ashleigh Simes v Haruna Arakawa | 0-6,0-6 |
| ITF Women Canberra Qual | 2018/03/24 23:00 | Alexandra Walters v Ashleigh Simes | 6-0,6-4 |
| ITF Women Canberra Qual | 2018/03/17 23:00 | Ashleigh Simes v Abbie Myers | 2-6,3-6 |
| ITF Women Canberra Qual | 2018/03/17 00:40 | Isabella Bozicevic v Ashleigh Simes | 2-6,6-7 |