Stadium: Court 6 Round: 62 Ground: Clay
| ITF M25 Jablonec Nad Nisou | 2021/05/17 10:00 | Titouan Droguet v Stepan Pecak | 6-0,6-1 |
| ITF M25 Jablonec Nad Nisou | 2021/05/16 10:00 | Tomas Krcma v Stepan Pecak | 3-6,1-6 |
| ITF M25 Prague | 2021/05/10 09:00 | Stepan Pecak v Jean Thirouin | 2-6,5-7 |
| ITF M15 St Petersburg | 2021/04/12 08:35 | Matvey Minin v Stepan Pecak | 7-5,6-3 |
| ITF M15 St Petersburg | 2021/04/11 07:00 | Stepan Pecak v Glenn Smits | 6-3,6-1 |
| ITF M15 St Petersburg | 2021/04/04 10:05 | Daniil Glinka v Stepan Pecak | 7-5,6-1 |
| ITF M15 Bratislava | 2021/03/10 14:40 | Stepan Pecak v Martin Krumich | 7-6,5-7,1-6 |
| ITF M15 Bratislava | 2021/03/09 09:00 | Niklas Rohrer v Stepan Pecak | 6-7,6-4,10-12 |
| ITF M25 Prague | 2021/05/10 10:30 | Roman Postolka v Petr Michnev | 3-6,2-6 |
| ITF M25 Prague | 2021/05/09 11:00 | Roman Postolka v Daniel Paty | 6-4,1-6,10-7 |
| ITF Slovakia F3 | 2018/08/05 10:00 | Samuel Paulovcak v Roman Postolka | 6-3,6-1 |
| ITF Czech Republic F6 Qual | 2017/07/16 07:00 | Marek Rehacek v Roman Postolka | 6-4,6-7,6-4 |