| Denmark Masters - Kval | 2021/08/05 14:00 | Elias Bracke v Nicolas A. Mueller | L | 2-0 |
| Spain Int - Kval | 2021/06/16 11:00 | Nicolas A. Mueller v Jonas Jaeger | L | 0-2 |
| Spain Int - Kval | 2021/06/16 10:40 | Nicolas A. Mueller v Adrian Alvarez | W | 2-0 |
| Litauen Int. | 2021/06/12 15:45 | Nicolas A. Mueller v Alex Lanier | L | 0-2 |
| Litauen Int. | 2021/06/12 06:45 | Nicolas A. Mueller v Axel Henrik Parkhøi | W | 2-0 |
| Litauen Int. | 2021/06/11 09:00 | Luka Ban v Nicolas A. Mueller | W | 1-2 |
| Austrian Open - Kval | 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 |
| Orleans Masters - Kval | 2021/03/23 09:40 | Yanis Gaudin v Valentin Singer | L | 2-0 |
| Portuguese Int. | 2020/11/06 13:35 | Luis Enrique Penalver v Valentin Singer | L | 2-1 |
| Swedish Open - Kval | 2020/01/16 09:00 | Peter Roenn Stensaeth v Valentin Singer | W | 0-2 |
| Estonian Int. - Kval | 2020/01/09 08:30 | Valentin Singer v Alvaro Vazquez | L | 0-2 |
| Slovenia - Future Series | 2019/11/22 15:40 | Ondrej Kral v Valentin Singer | L | 2-0 |
| Slovenia - Future Series | 2019/11/22 10:00 | Valentin Singer v Cristian Savin | W | 2-0 |
| Kypros Int. | 2019/10/11 12:50 | Alex Lane v Valentin Singer | L | 2-0 |
| Kypros Int. | 2019/10/11 08:10 | Valentin Singer v Rowan Scheurkogel | W | 2-0 |