| Slovak Open Qual | 2022/03/02 12:05 | Dominik Kopriva v Mattias Xu | L | 2-0 |
| Slovak Open Qual | 2020/02/26 10:55 | Mattias Xu v Talar Laa | L | 0-2 |
| Swedish Open Qual | 2020/01/16 11:30 | Ludvig Petre Olsson v Mattias Xu | L | 2-0 |
| Norwegian Int. Qual | 2019/11/07 11:30 | Mattias Xu v Kasper Lehikoinen | L | 0-2 |
| Hungarian Int. Qual | 2019/10/30 09:20 | Karl Kert v Mattias Xu | L | 2-1 |
| Czech Open Qual | 2019/09/26 15:45 | Mattias Xu v Martin Ouazzen | L | 1-2 |
| Czech Open Qual | 2019/09/26 10:15 | Mattias Xu v Matej Polacek | W | 2-0 |
| European Club Championships | 2019/07/05 15:30 | Vladimir Malkov v Mattias Xu | L | 2-0 |