| Ungern Int. - Kval | 2019/10/30 09:20 | Karl Kert v Mattias Xu | L | 2-1 |
| Czech Open - Kval | 2019/09/26 15:45 | Mattias Xu v Martin Ouazzen | L | 1-2 |
| Czech Open - Kval | 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 |
| Litauen - Int. - Kval | 2019/06/06 10:40 | Andis Berzins v Mattias Xu | W | 0-2 |
| Swiss Open - Damdubbel - Kval | 2019/02/27 07:30 | Bedrich Valenta v Mattias Xu | L | 2-1 |
| Finnish Open - Kval | 2019/04/04 13:35 | Kasper Lehikoinen v David K Kristensen | L | 1-2 |
| Swiss Open - Damdubbel - Kval | 2019/01/10 08:00 | Kasper Lehikoinen v Dimitar Yanakiev | L | 0-2 |
| Giraldilla Int. - Mixed dubbel | 2017/04/22 08:58 | Sam Parsons v Kasper Lehikoinen | L | 2-1 |
| Giraldilla Int. - Mixed dubbel | 2017/04/21 16:45 | Ditlev Jaeger Holm v Kasper Lehikoinen | W | 0-2 |
| Giraldilla Int. - Mixed dubbel | 2017/04/21 07:37 | Kasper Lehikoinen v Victor Svendsen | W | 2-1 |
| Giraldilla Int. - Mixed dubbel | 2017/04/06 10:55 | Luis Enrique Penalver v Kasper Lehikoinen | L | 2-1 |
| Giraldilla Int. - Mixed dubbel | 2017/03/30 16:15 | Pierrick Cajot v Kasper Lehikoinen | W | 0-2 |
| Giraldilla Int. - Mixed dubbel | 2017/03/30 09:55 | Lucas Mazur v Kasper Lehikoinen | W | 0-2 |