| Denmark Masters - Feminin - Calificari | 2021/08/05 17:30 | Anna Siess Ryberg v Frederikke Ostergaard | W | 0-2 |
| Denmark Masters - Feminin - Calificari | 2021/08/05 15:00 | Sarah Vishart v Frederikke Ostergaard | W | 0-2 |
| Denmark Masters - Feminin - Calificari | 2021/08/05 15:00 | Sarah Frederikke Vishart v Frederikke Ostergaard | W | 0-2 |
| Denmark Masters - Feminin - Calificari | 2021/08/05 08:00 | Ophelia Casier v Frederikke Ostergaard | W | 0-2 |
| Campionatul European - Feminin | 2021/04/29 08:20 | Line Kjaersfeldt v Natalya Voytsekh | W | 2-1 |
| Campionatul European - Feminin | 2021/04/28 10:00 | Line Kjaersfeldt v Vlada Ginga | W | 2-0 |
| All England Open - Feminin | 2021/03/17 16:40 | Aya Ohori v Line Kjaersfeldt | L | 2-0 |
| Swiss Open - Feminin | 2021/03/04 13:40 | Pornpawee Chochuwong v Line Kjaersfeldt | L | 2-1 |
| Swiss Open - Feminin | 2021/03/03 08:00 | Laura Sarosi v Line Kjaersfeldt | W | 1-2 |
| Thailand Open - Feminin | 2021/01/21 07:30 | Line Kjaersfeldt v Carolina Marin | L | 0-2 |
| Thailand Open - Feminin | 2021/01/12 07:25 | Line Kjaersfeldt v Iris Wang | L | 1-2 |
| SaarLorLux Open Women | 2020/10/31 14:00 | Line Kjaersfeldt v Yvonne Li | L | 1-2 |