Estádio: Court 2 Round: 25 Ground: Clay
| Challenger - Praga | 2021/08/08 11:20 | Marek Gengel v Emilio Nava | 4-6,3-6 |
| ITF - M25 Grodzisk Mazowiecki | 2021/08/04 15:00 | Philip Bachmaier v Marek Gengel | 6-3,6-4 |
| ITF - M15 Castelo Branco | 2021/07/29 13:15 | Marek Gengel v Daniel Batista | 4-6,6-3,3-6 |
| ITF - M15 Castelo Branco | 2021/07/28 08:30 | Marek Gengel v Ray Ho | 6-2,2-6,6-3 |
| ITF - M25 Idanha-a-Nova | 2021/07/22 11:45 | Clement Chidekh v Marek Gengel | 6-4,7-6 |
| ITF - M25 Idanha-a-Nova | 2021/07/21 08:00 | Joao Lucas Reis da Silva v Marek Gengel | 5-7,0-6 |
| Challenger - Aix en Provence | 2021/06/13 10:00 | Marek Gengel v Eduard Esteve Lobato | 0-6,1-6 |
| ITF - M15 Gaiba | 2021/06/08 13:50 | Marek Gengel v Mats Rosenkranz | 6-4,5-7,1-6 |
| ITF - M25 Prostějov | 2021/08/16 09:40 | Christopher Patzanovsky v Vojtech Mares | 6-2,6-0 |
| ITF - M25 Prostějov | 2021/08/15 09:00 | Christopher Patzanovsky v Peter Samosi | 6-0,6-1 |
| ITF - M15 Frederiksberg | 2021/08/02 08:50 | Adam Heinonen v Christopher Patzanovsky | 3-6,4-6 |
| ITF - M25 Marburgo | 2021/07/05 13:05 | Milan Welte v Christopher Patzanovsky | 6-1,6-3 |
| ITF - M15 Troisdorf | 2021/05/10 09:30 | Glenn Smits v Christopher Patzanovsky | 6-3,5-7,10-4 |
| ITF - M15 Troisdorf | 2021/05/09 10:00 | Christopher Patzanovsky v Noah Thurner | 6-0,6-3 |
| ITF - M25 Meerbusch | 2021/04/12 09:00 | Johann Lars v Christopher Patzanovsky | 6-4,4-6,10-8 |
| ITF - M15 Antália | 2021/03/22 07:00 | Christopher Patzanovsky v Max Alcala Gurri | 1-6,0-6 |