Stadium: Court V4 Round: 25 Ground: Hardcourt outdoor
| ITF W15 Savitaipale | 2021/07/30 10:20 | Astrid Wanja Brune Olsen v Oona Orpana | 7-6,6-7,7-5 |
| ITF W15 Savitaipale | 2021/07/29 13:05 | Patricija Spaka v Oona Orpana | 5-7,6-7 |
| ITF W15 Savitaipale | 2021/07/28 15:35 | Sabastiani Leon v Oona Orpana | 4-6,6-7 |
| ITF W15 Monastir | 2020/03/12 10:20 | Oona Orpana v Isabella Kruger | 2-6,5-7 |
| ITF W15 Monastir | 2020/03/11 15:10 | Oona Orpana v Nadia Echeverria Alam | 4-6,7-5,6-2 |
| 2020 Fed Kupa | 2020/02/07 14:25 | Mariam Bolkvadze v Oona Orpana | 7-5,6-4 |
| 2020 Fed Kupa | 2020/02/06 14:05 | Francisca Jorge v Oona Orpana | 6-3,6-3 |
| 2020 Fed Kupa | 2020/02/05 14:35 | Oona Orpana v Maiar S A Abdelaziz | 6-4,6-2 |
| ITF W25 Fort Worth | 2021/09/21 16:15 | Amy Zhu v Ania Hertel | 3-6,4-6 |
| ITF W25 Fort Worth | 2021/09/20 14:00 | Louise Kwong v Ania Hertel | 3-6,3-6 |
| ITF W25 Radom | 2021/08/12 11:25 | Ania Hertel v Reka-Luca Jani | 1-6,6-4,6-7 |
| ITF W25 Radom | 2021/08/11 11:00 | Valeriya Olyanovskaya v Ania Hertel | 6-7,2-6 |
| ITF W25 Bydgoszcz | 2021/08/02 13:10 | Mika D Fruchtman v Ania Hertel | 6-7,6-4,10-8 |
| ITF W60 Grodzisk Mazowiecki | 2021/07/28 13:45 | Ania Hertel v Anastasia Zakharova | 3-6,2-6 |
| Polish National Tour - nők | 2021/07/15 12:30 | Ania Hertel v Magdalena Frech | 1-6,2-6 |
| Polish National Tour - nők | 2021/07/14 08:00 | Ania Hertel v Weronika Falkowska | 6-2,4-6,6-4 |