Stadium: Court 2 Round: 14 Ground: Clay
| Challenger Forli | 2021/11/30 09:00 | Tobias Kamke v Dominic Stephan Stricker | 4-6,6-7 |
| Challenger Bari | 2021/11/24 12:00 | Flavio Cobolli v Tobias Kamke | 7-6,2-6,6-1 |
| Challenger Bari | 2021/11/22 12:25 | Tobias Kamke v Federico Gaio | 6-3,6-4 |
| Challenger Helsinki | 2021/11/16 12:55 | Joris De Loore v Tobias Kamke | 6-3,6-4 |
| Challenger Bratislava | 2021/11/11 16:00 | Alex Molcan v Tobias Kamke | 6-2,6-2 |
| Challenger Bratislava | 2021/11/10 17:00 | Jonas Forejtek v Tobias Kamke | 2-6,4-6 |
| Challenger Bergamo | 2021/10/31 09:00 | Tobias Kamke v Fabian Marozsan | 1-6,4-6 |
| Challenger Ismaning | 2021/10/25 15:45 | Tobias Kamke v Andreas Seppi | 5-7,3-6 |
| Challenger Forli | 2021/12/07 15:20 | Marek Gengel v Matteo Gigante | 2-6,6-3,2-6 |
| Challenger Manama | 2021/11/23 10:00 | Marek Gengel v Goncalo Oliveira | 4-6,4-6 |
| Challenger Manama | 2021/11/22 10:10 | Khumoyun Sultanov v Marek Gengel | 6-4,6-7,0-6 |
| Challenger Manama | 2021/11/21 12:00 | Arjun Kadhe v Marek Gengel | 6-4,4-6,3-6 |
| ITF M15 Sharm El Sheikh | 2021/11/14 10:15 | Loic Cloes v Marek Gengel | 0-6,4-6 |
| ITF M15 Sharm El Sheikh | 2021/11/14 07:00 | Marek Gengel v Daniel Little | 7-5,6-4 |
| ITF M15 Sharm El Sheikh | 2021/11/12 08:00 | Sergei Pogosian v Marek Gengel | 2-6,1-6 |
| ITF M15 Sharm El Sheikh | 2021/11/11 09:30 | Kelsey Stevenson v Marek Gengel | 3-6,3-6 |