| Oman Open U21 Women | 2019/02/13 09:00 | Jiri Martinko v Pieraert, Valentin | L | 3-2 |
| Qatar Open XD | 2018/11/13 17:00 | Pieraert, Valentin v Zhao, Zihao | L | 0-3 |
| Qatar Open XD | 2018/11/13 15:30 | Pieraert, Valentin v Pinto, Daniele | L | 1-3 |
| Qatar Open XD | 2018/11/13 06:30 | Pieraert, Valentin v Tsyhanouski, Mikhail | W | 3-0 |
| Qatar Open XD | 2018/10/24 08:10 | Pieraert, Valentin v Matteo Mutti | L | 0-3 |
| République tchèque - Extraleague | 2018/10/23 16:15 | Jordy Piccolin v Pieraert, Valentin | L | 4-3 |
| Qatar Open XD | 2017/10/31 11:00 | Pieraert, Valentin v Grinninger, Thomas | W | 4-2 |
| Qatar Open XD | 2017/10/31 08:30 | Pieraert, Valentin v Sam Boccard | W | 3-0 |
| Challenger Ochsenhausen | 2019/03/12 12:00 | Tomas Konecny v Kovacs, Sebestyen | L | 3-1 |
| Challenger Ochsenhausen | 2019/03/12 10:40 | Kovacs, Sebestyen v Jakub Kleprlik | W | 3-1 |
| Challenger Ochsenhausen | 2019/03/11 20:20 | Schabacker, Jens v Kovacs, Sebestyen | L | 3-0 |
| Challenger Ochsenhausen | 2019/03/11 17:40 | Kanamitsu, Koyo v Kovacs, Sebestyen | L | 3-0 |
| Challenger Ochsenhausen | 2019/03/11 15:40 | Andriy Sitak v Kovacs, Sebestyen | L | 3-0 |
| Challenger Ochsenhausen | 2019/03/11 10:50 | Schwarzer, Dwain v Kovacs, Sebestyen | W | 1-3 |
| Challenger Ochsenhausen | 2019/03/11 08:10 | Demeter, Lehel v Kovacs, Sebestyen | L | 3-0 |
| Challenger Ochsenhausen | 2019/02/26 12:00 | Kovacs, Sebestyen v Petr David | L | 1-3 |