Stadium: Court 5 Round: 25 Ground: Clay
| ITF - W15 Antalya | 2021/04/14 08:40 | Lee, So-Ra v Koelzer, Romy | 2-6,6-2,6-0 |
| ITF - W15 Héraklion | 2020/11/19 07:30 | Sapfo Sakellaridi v Koelzer, Romy | 3-6,2-6 |
| ITF - W15 Héraklion | 2020/11/18 07:30 | Kimchi, Shavit v Koelzer, Romy | 2-6,4-6 |
| ITF - W15 Héraklion | 2020/11/15 08:00 | Cadantu, Alexandra v Koelzer, Romy | 3-6,6-1,2-6 |
| ITF - W15 Héraklion | 2020/11/14 08:00 | Koelzer, Romy v Nicole Khirin | 6-1,6-1 |
| ITF - W15 Héraklion | 2020/11/13 13:30 | Koelzer, Romy v Poznikhirenko, Ganna | 6-3,4-6,7-5 |
| ITF - W15 Héraklion | 2020/11/13 09:00 | Gergana Topalova v Koelzer, Romy | 4-6,4-6 |
| ITF - W15 Héraklion | 2020/11/12 08:00 | Koelzer, Romy v Viertler, Marion | 6-2,6-2 |
| ITF - W15 Antalya | 2021/04/13 12:35 | Nuria Brancaccio v Polina Kudermetova | 6-1,6-4 |
| WTA St. Petersburg | 2021/03/13 17:15 | Polina Kudermetova v Magdalena Frech | 1-6,3-6 |
| ITF W25 Kazan | 2021/03/12 07:00 | Ekaterina Yashina v Polina Kudermetova | 5-7,6-0,6-2 |
| ITF W25 Kazan | 2021/03/10 08:30 | Maria Timofeeva v Polina Kudermetova | 6-4,3-6,4-6 |
| ITF - W15 Antalya | 2021/02/14 07:00 | Polina Kudermetova v Custic, Marta | 6-2,1-6,6-3 |
| ITF - W15 Antalya | 2021/02/13 07:00 | Caijsa W Hennemann v Polina Kudermetova | 3-6,7-5,1-6 |
| ITF - W15 Antalya | 2021/02/12 12:10 | Polina Kudermetova v Tara Wurth | 5-7,7-5,6-4 |
| ITF - W15 Antalya | 2021/02/11 08:45 | Gergana Topalova v Polina Kudermetova | 6-4,6-7,4-6 |