| Hellas Open | 2019/08/09 14:30 | Krausz, Gergely v Kral, Ondrej | L | 2-0 |
| Hellas Open Qual | 2019/08/08 09:30 | Kral, Ondrej v Ivancic, Miha | W | 2-1 |
| Hellas Open Qual | 2019/08/08 08:00 | Kral, Ondrej v Yildiz, Yusuf | W | 2-0 |
| Lithuanian Int. | 2019/06/09 08:00 | Christensen, Jeppe Bruun v Kral, Ondrej | L | 2-1 |
| Open de Suisse - Doubles Femmes - Qualif. | 2018/09/12 09:30 | M.gowda, H. v Kral, Ondrej | W | 1-2 |
| Giraldilla Int. XD | 2018/08/30 06:00 | Kral, Ondrej v Milan Dratva | L | 0-2 |
| Indonesia Masters XD | 2018/02/14 10:30 | Fabio Caponio v Kral, Ondrej | W | 0-2 |
| Open de Suisse - Doubles Femmes - Qualif. | 2017/12/05 11:30 | Jones, David v Kral, Ondrej | L | 2-1 |
| Slovenia Future Series | 2019/11/22 10:00 | Valentin Singer v Savin, Cristian | W | 2-0 |
| Cyprus Int. | 2019/10/11 12:50 | Lane, Alex v Valentin Singer | L | 2-0 |
| Cyprus Int. | 2019/10/11 08:10 | Valentin Singer v Scheurkogel, Rowan | W | 2-0 |
| Czech Open | 2019/09/27 12:50 | Alcala, Alejandro v Valentin Singer | L | 2-1 |
| Czech Open | 2019/09/27 07:30 | Gergo Pytel v Valentin Singer | W | 0-2 |
| Hellas Open Qual | 2019/08/08 09:25 | Tze Yong Ng v Valentin Singer | L | 2-0 |
| Lithuanian Int. | 2019/06/07 11:40 | Valentin Singer v Krapez, Andraz | L | 1-2 |
| Croatian Int. | 2019/04/19 14:30 | Max Weisskirchen v Valentin Singer | L | 2-0 |