Stadium: Court 2 Round: 54 Ground: Clay
| ITF W15 Erwitte | 2021/08/18 16:35 | Oana Gavrila v Ng, Taylor | 4-6,3-6 |
| ITF W15 Cairo | 2021/07/30 08:00 | Luisa Meyer Auf Der Heide v Oana Gavrila | 6-2,6-4 |
| ITF W15 Cairo | 2021/07/29 08:00 | Yasmin Ezzat v Oana Gavrila | 0-6,2-6 |
| ITF W15 Cairo | 2021/07/28 08:00 | Zoziya Kardava v Oana Gavrila | 2-6,2-6 |
| ITF W15 Cairo | 2021/07/21 13:10 | Aya El Aouni v Oana Gavrila | 6-3,6-4 |
| ITF W60 Amstelveen | 2021/07/05 07:55 | Oana Gavrila v Yana Morderger | 5-7,6-2,3-10 |
| ITF W25 The Hague | 2021/06/27 08:00 | Fiona Ganz v Oana Gavrila | 6-3,6-2 |
| ITF W15 Alkmaar | 2021/06/22 14:40 | Jaimee Fourlis v Oana Gavrila | 6-2,3-6,6-1 |
| ITF - W15 Héraklion | 2021/05/26 10:45 | Greiner, Lena v Malesevic, Tamara | 0-6,6-2,3-6 |
| ITF - W15 Héraklion | 2021/05/17 07:00 | Simona Ogescu v Greiner, Lena | 6-0,6-4 |
| ITF - W15 Héraklion | 2021/05/16 09:00 | Greiner, Lena v Georgiadou, Maria | 7-5,6-1 |
| German Championship Women | 2020/12/07 08:00 | Greiner, Lena v Steffi Bachofer | 1-6,1-6 |
| Stuttgart-Stammheim, Singles W-ITF-GER-01A | 2020/01/19 09:00 | Greiner, Lena v Courcoux, Pauline | 0-6,4-6 |
| ITF W25 Braunschweig | 2019/08/19 10:55 | Marine Partaud v Greiner, Lena | 6-3,6-2 |
| ITF W25 Leipzig | 2019/08/12 14:25 | Greiner, Lena v Milkova, Barbora | 1-6,5-7 |
| Kaltenkirchen, Singles Qualifying W-ITF-GER-07A | 2019/06/11 13:45 | Greiner, Lena v Jarlskog, Ida | 3-6,3-6 |