| International Tennis Series | 2020/05/07 13:55 | Oskar Michalek v Jamie Cerretani | 4-1,4-1 |
| International Tennis Series | 2020/05/07 12:00 | Michael Redlicki v Oskar Michalek | 3-4,4-2,4-3 |
| ITF USA F37 | 2017/11/11 16:00 | Oskar Michalek v Florian Broska | 1-6,2-6 |
| ITF USA F35 | 2017/10/30 15:00 | Brian Shi v Oskar Michalek | 6-2,6-3 |
| ITF Poland F5 Qual | 2014/08/18 09:50 | Maciej Rajski v Oskar Michalek | 6-2,6-2 |
| ITF Poland F5 Qual | 2014/08/17 08:00 | Oskar Michalek v Piotr Grynkowski | 6-4,6-2 |
| International Tennis Series | 2020/05/07 14:55 | Michael Redlicki v Stefan Storch | 3-4,4-3,3-4 |
| ITF Australia F4 Qual | 2018/03/24 03:30 | David Barclay v Stefan Storch | 6-2,6-0 |