| German Open 2020, WS | 2020/01/29 08:30 | Gasnier, Laura v Nina Mittelham | L | 4-3 |
| German Open 2020, WS | 2020/01/28 10:45 | Giorgia Piccolin v Nina Mittelham | W | 1-4 |
| Ligue des Champions - Femmes | 2020/01/10 19:20 | Garcia, Ana v Nina Mittelham | W | 1-3 |
| North American Open Women | 2019/12/07 22:10 | Hitomi Sato v Nina Mittelham | L | 4-2 |
| North American Open Women | 2019/12/07 17:15 | Nina Mittelham v Xiaoxin Yang | W | 4-3 |
| Austrian Open 2019, WS | 2019/11/14 15:40 | Nina Mittelham v Zhuojia He | L | 1-4 |
| Austrian Open 2019, WS | 2019/11/13 10:00 | Nina Mittelham v Liu, Fei | W | 4-2 |
| Ligue des Champions UEFA - Femmes | 2019/11/03 17:00 | Charlotte Carey v Nina Mittelham | W | 0-3 |
| North American Open Women | 2019/12/04 19:35 | Koszulap, Natacha v Qi, Fei | L | 0-4 |
| Oman Open U21 Women | 2019/12/04 15:40 | Cuchirita, Adina Maria v Koszulap, Natacha | W | 0-3 |
| République tchèque - Extraleague | 2018/10/23 12:05 | Sibel Altinkaya v Koszulap, Natacha | L | 4-0 |
| Qatar Open XD | 2018/10/23 08:10 | Feredj, Hiba v Koszulap, Natacha | L | 3-2 |