Stadium: Central Court (8) Round: 44 Ground: Clay
| ITF M25 Kottingbrunn | 2021/07/18 07:30 | Postolka, Roman v Jakub Kroslak | 4-6,3-6 |
| ITF M25 Telfs | 2021/07/12 09:40 | Heger, Tim v Postolka, Roman | 7-5,6-3 |
| ITF M25 Most | 2021/05/24 09:00 | Postolka, Roman v Recek, Dominik | 3-6,7-6,6-10 |
| ITF M25 Most | 2021/05/23 14:00 | Stepan Pecak v Postolka, Roman | 4-6,1-6 |
| ITF M25 Prague | 2021/05/10 10:30 | Postolka, Roman v Petr Michnev | 3-6,2-6 |
| ITF M25 Prague | 2021/05/09 11:00 | Postolka, Roman v Daniel Paty | 6-4,1-6,10-7 |
| ITF Slovakia F3 | 2018/08/05 10:00 | Paulovcak, Samuel v Postolka, Roman | 6-3,6-1 |
| Czech Republic F6, Singles Qualifying | 2017/07/16 07:00 | Rehacek, Marek v Postolka, Roman | 6-4,6-7,6-4 |
| ITF M25 Wroclaw | 2021/06/27 11:00 | Borkowski, Mikolaj v Oleksandr Ovcharenko | 4-6,0-6 |
| ITF M25 Poznan | 2020/08/24 08:00 | Pawel Juszczak v Borkowski, Mikolaj | 6-4,6-0 |
| ITF M25 Poznan | 2020/08/23 08:00 | Borkowski, Mikolaj v Davies, George | 6-4,6-3 |
| Polish National Tour | 2020/08/15 16:00 | Gajewski, Kamil v Borkowski, Mikolaj | 6-4,6-3 |
| ITF M25 Poznan | 2019/08/20 08:55 | Juliusz Bienkiewicz v Borkowski, Mikolaj | 6-0,6-3 |
| Bydgoszcz, Singles Qualifying M-ITF-POL-04A | 2019/08/13 09:50 | Nazaruk, Dominik v Borkowski, Mikolaj | 6-3,7-5 |
| ITF - M15 Koszalin | 2019/08/05 08:00 | Kossek, Daniel v Borkowski, Mikolaj | 6-7,6-2,10-8 |
| ITF M15 Vilnius | 2019/07/08 07:00 | Meraut, Tristan v Borkowski, Mikolaj | 6-4,6-2 |