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