| Giraldilla Int. XD | 2018/05/11 15:45 | Irina Amalie Andersen v Stern, Ronja | L | 2-0 |
| Giraldilla Int. XD | 2018/05/11 10:45 | Ilyinskaya, Maryna v Stern, Ronja | W | 1-2 |
| Giraldilla Int. XD | 2018/03/17 08:00 | Hertz Hansen, Amalie v Stern, Ronja | L | 2-0 |
| Giraldilla Int. XD | 2018/03/16 14:00 | Stern, Ronja v Agnes Korosi | W | 2-1 |
| Giraldilla Int. XD | 2018/03/16 11:30 | Stern, Ronja v Wiktoria Dabczynska | W | 2-1 |
| Open de Suisse - Femmes | 2018/02/21 10:40 | Mitsova, M. v Stern, Ronja | L | 2-0 |
| Indonesia Masters XD | 2017/07/14 22:30 | Stern, Ronja v Jeon, Joo I | L | 0-2 |
| Indonesia Masters XD | 2017/07/14 01:00 | Stern, Ronja v Koch Rohde, Natalia | W | 2-1 |