| Lithuanian International | 2021/06/12 15:45 | Nicolas A. Mueller v Alex Lanier | L | 0-2 |
| Lithuanian International | 2021/06/12 06:45 | Nicolas A. Mueller v Axel Henrik Parkhøi | W | 2-0 |
| Lithuanian International | 2021/06/11 09:00 | Luka Ban v Nicolas A. Mueller | W | 1-2 |
| Austrian Open - Calificari | 2021/05/27 10:15 | Nicolas A. Mueller v Mohamad Razif Fazriq | L | 1-2 |
| Portuguese Int. Qual | 2021/05/06 12:00 | Nicolas A. Mueller v Tobias Kuenzi | L | 1-2 |
| Portuguese Int. Qual | 2021/05/06 09:30 | Sacha Leveque v Nicolas A. Mueller | W | 1-2 |
| Polish Open - Calificari | 2021/03/25 15:35 | Aryamann Tandon v Nicolas A. Mueller | L | 2-0 |
| Campionatul European pe Echipe | 2020/02/13 10:00 | Hans-Kristian Vittinghus v Nicolas A. Mueller | L | 2-0 |