Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| UTR Pro Tennis Series Dallas | 2021/09/05 13:00 | Paroulek, Tadeas v Colin Markes | 6-3,6-2 |
| UTR Pro Tennis Series Dallas | 2021/09/04 16:10 | Paroulek, Tadeas v Ovil, Orel | 6-2,5-1 |
| UTR Pro Tennis Series Dallas | 2021/09/03 14:30 | Manuel Sanchez v Paroulek, Tadeas | 3-6,3-5 |
| UTR Pro Tennis Series Dallas | 2021/09/02 13:00 | Reed Collier v Paroulek, Tadeas | 3-6,2-6 |
| UTR Pro Tennis Series Dallas | 2021/09/01 14:30 | Luc Fomba v Paroulek, Tadeas | 6-1,7-6 |
| UTR Pro Tennis Series Dallas | 2021/08/30 14:30 | Mrsic, Luka v Paroulek, Tadeas | 6-2,3-6,3-6 |
| ITF M15 Novi Sad | 2021/08/05 11:55 | Paroulek, Tadeas v Charles Broom | 3-6,6-2,6-3 |
| ITF M15 Novi Sad | 2021/08/04 13:30 | Miladinovic, Marko v Paroulek, Tadeas | 1-6,0-6 |
| Fayetteville, AR, Singles Qualifying, M-ITF-USA-31 | 2021/09/21 14:00 | von Der Schulenburg, Jeffrey v Noah Schachter | 6-3,6-3 |
| Fayetteville, AR, Singles Qualifying, M-ITF-USA-31 | 2021/09/20 14:00 | von Der Schulenburg, Jeffrey v Carles Hernandez | 6-2,6-2 |
| ITF M15 Esch/Alzette | 2021/07/21 09:00 | von Der Schulenburg, Jeffrey v Alexander Weis | 4-6,4-6 |
| ITF M15 Esch/Alzette | 2021/07/20 13:00 | von Der Schulenburg, Jeffrey v Guy Den Ouden | 6-4,3-6,7-5 |
| ITF M15 L'Aquila | 2021/07/15 16:15 | von Der Schulenburg, Jeffrey v Basso, Andrea | 4-6,1-6 |
| ITF M15 L'Aquila | 2021/07/14 08:00 | Graziani, Edoardo v von Der Schulenburg, Jeffrey | 4-6,3-6 |
| ITF M15 Poprad | 2021/07/06 07:55 | von Der Schulenburg, Jeffrey v Matias Soto | 3-6,6-2,4-6 |
| ITF M25 Klosters | 2021/06/22 08:25 | von Der Schulenburg, Jeffrey v Nicolas Moreno De Alboran | 3-6,4-6 |