Stadium: Court 1 Round: 45 Ground: Hardcourt outdoor
| ITF W25 - Wien | 2021/08/31 17:15 | Maria F Herazo Gonzalez v Tamara Kostic | 6-3,4-6,6-1 |
| ITF W15 - Bad Waltersdorf | 2021/08/25 12:05 | Tamara Kostic v Katarina Kuzmova | 5-7,4-6 |
| ITF W15 - Don Benito | 2021/07/21 07:00 | Tamara Kostic v Olga Parres Azcoitia | 7-5,0-6,4-6 |
| ITF W15 - Don Benito | 2021/07/20 11:05 | Tamara Kostic v Claudia Martinez de Velasco | 6-2,6-3 |
| ITF W15 - Don Benito | 2021/07/19 15:00 | Marina Benito v Tamara Kostic | 3-6,3-6 |
| ITF W15 - Don Benito | 2021/07/18 17:00 | Tamara Kostic v Carmen Garri Murcia | 6-3,6-1 |
| ITF W15 - Don Benito | 2021/07/18 07:15 | Tamara Kostic v Iman Khan | 7-6,6-7,10-8 |
| Österrike - Tennis Championship - Damer | 2020/07/02 08:00 | Daniela Glanzer v Tamara Kostic | 7-6,6-1 |
| ITF W15 - Sharm El Sheikh | 2021/10/03 08:00 | Kate Uzhylovska v Amelie-C Janssen | 0-6,1-6 |
| ITF W25 - Braunschweig | 2021/08/23 08:30 | Lexie Stevens v Amelie-C Janssen | 6-3,6-0 |
| ITF W25 - Bydgoszcz | 2021/08/01 08:00 | Amelie-C Janssen v Aleksandra Julia Zuchanska | 4-6,7-5,7-10 |
| ITF - W15 - Monastir | 2021/03/28 14:00 | Katsiaryna Skachkova v Amelie-C Janssen | 6-2,5-7,10-5 |
| ITF - W15 - Monastir | 2021/03/21 14:00 | Amelie-C Janssen v Katsiaryna Skachkova | 4-6,4-6 |
| ITF - W15 - Monastir | 2021/03/14 12:00 | Eliessa Vanlangendonck v Amelie-C Janssen | 6-2,6-0 |