| Bulgarian Int | 2021/10/08 08:55 | Nicolas A. Mueller v Brian Holtschke | L | 0-2 |
| Swiss Open Qual | 2023/03/21 10:40 | Joran Kweekel v Nicolas A. Mueller | L | 2-0 |
| Portugal Int. Qual | 2023/03/09 16:00 | Gregoire Deschamp v Nicolas A. Mueller | L | 2-0 |
| Portugal Int. Qual | 2023/03/09 13:30 | Ernesto Baschwitz v Nicolas A. Mueller | W | 0-2 |
| Portugal Int. Qual | 2023/03/08 15:30 | Nicolas A. Mueller v Alvaro Vazquez | W | 2-1 |
| Iceland Int. | 2023/01/28 11:55 | Nicolas A. Mueller v Valentin Singer | L | 1-2 |
| Iceland Int. | 2023/01/27 14:50 | Nicolas A. Mueller v Magnus Klinggaard | W | 2-1 |
| Welsh Int. Qual | 2022/11/30 11:20 | Nicolas A. Mueller v Marcus Viscovich | L | 0-2 |
| Welsh Int. Qual | 2022/11/29 11:40 | Nicolas A. Mueller v Felix Wright | W | 2-0 |
| Dutch Int. Qual | 2023/04/13 08:15 | Brian Holtschke v Samuel Lee | L | 1-2 |
| Polish Open Qual | 2023/03/22 16:10 | Brian Holtschke v Collins Valentine Filimon | L | 0-2 |
| Portugal Int. Qual | 2023/03/08 18:10 | Yohan Barbieri v Brian Holtschke | W | 0-2 |
| Iceland Int. | 2023/01/27 14:50 | Brian Holtschke v Valentin Singer | L | 1-2 |
| Estonian Int. Qual | 2023/01/12 14:00 | Christian Faust Kjaer v Brian Holtschke | L | 2-0 |
| Estonian Int. Qual | 2023/01/12 11:05 | Raul Must v Brian Holtschke | W | 0-2 |
| Estonian Int. Qual | 2023/01/12 08:35 | Rakesh Sharma v Brian Holtschke | W | 0-2 |
| Latvia Int. | 2022/09/02 07:00 | Brian Holtschke v Christopher Vittoriani | L | 0-2 |