| Hungarian Int. Qual | 2019/10/30 09:20 | Karl Kert v Xu, Mattias | L | 2-1 |
| Czech Open Qual | 2019/09/26 15:45 | Xu, Mattias v Ouazzen, Martin | L | 1-2 |
| Czech Open Qual | 2019/09/26 10:15 | Xu, Mattias v Polacek, Matej | W | 2-0 |
| European Club Championships | 2019/07/05 15:30 | Malkov, Vladimir v Xu, Mattias | L | 2-0 |
| Lithuanian Int. Qual | 2019/06/06 10:40 | Berzins, Andis v Xu, Mattias | W | 0-2 |
| Open de Suisse - Doubles Femmes - Qualif. | 2019/02/27 07:30 | Valenta, Bedrich v Xu, Mattias | L | 2-1 |
| Finnish Open Qual | 2019/04/04 13:35 | Lehikoinen, Kasper v Kim Kristensen, D. | L | 1-2 |
| Open de Suisse - Doubles Femmes - Qualif. | 2019/01/10 08:00 | Lehikoinen, Kasper v Dimitar Yanakiev | L | 0-2 |
| Giraldilla Int. XD | 2017/04/22 08:58 | Parsons, Sam v Lehikoinen, Kasper | L | 2-1 |
| Giraldilla Int. XD | 2017/04/21 16:45 | Ditlev Jaeger Holm v Lehikoinen, Kasper | W | 0-2 |
| Giraldilla Int. XD | 2017/04/21 07:37 | Lehikoinen, Kasper v Svendsen, Victor | W | 2-1 |
| Giraldilla Int. XD | 2017/04/06 10:55 | Luis Enrique Penalver v Lehikoinen, Kasper | L | 2-1 |
| Giraldilla Int. XD | 2017/03/30 16:15 | Cajot, Pierrick v Lehikoinen, Kasper | W | 0-2 |
| Giraldilla Int. XD | 2017/03/30 09:55 | Mazur, Lucas v Lehikoinen, Kasper | W | 0-2 |