Stadium: MTA 21 Round: 28 Ground: Clay
| Challenger Lisbon | 2021/09/27 11:30 | Lucas Gerch v Daniel Michalski | 6-7,3-6 |
| ITF M15 Antalya | 2021/11/26 07:30 | Luis Faria v Lucas Gerch | 0-6,3-6 |
| ITF M15 Antalya | 2021/11/25 07:50 | Hamad Medjedovic v Lucas Gerch | 1-6,1-6 |
| ITF M15 Antalya | 2021/11/24 09:20 | Oleg Prihodko v Lucas Gerch | 1-6,6-4,2-6 |
| Challenger Tenerife | 2021/10/31 11:55 | Filip Cristian Jianu v Lucas Gerch | 6-3,6-1 |
| ITF M25 Portimao | 2021/10/27 14:00 | Matteo Arnaldi v Lucas Gerch | 7-6,6-3 |
| ITF M25 Quinta Do Lago | 2021/10/20 11:10 | Stuart Parker v Lucas Gerch | 7-6,6-1 |
| ITF M25 Loule | 2021/10/17 09:55 | Lucas Gerch v Kaichi Uchida | 4-6,4-6 |
| ITF M25 Loule | 2021/10/16 08:55 | Lucas Gerch v Maximilian Neuchrist | 6-3,7-5 |
| ITF M15 Antalya | 2021/11/26 07:30 | Marsel Ilhan v Daniel Michalski | 5-7,1-6 |
| ITF M15 Antalya | 2021/11/25 07:50 | Maik Steiner v Daniel Michalski | 3-6,1-6 |
| ITF M15 Antalya | 2021/11/24 09:15 | Ezequiel Simonit v Daniel Michalski | 1-6,3-6 |
| ITF M15 Antalya | 2021/11/21 07:00 | Daniel Michalski v Billy Harris | 2-6,6-1,6-3 |
| ITF M15 Antalya | 2021/11/20 07:00 | Bogdan Ionut Apostol v Daniel Michalski | 6-7,1-6 |
| ITF M15 Antalya | 2021/11/19 06:15 | Daniel Michalski v Mircea-Alexandru Jecan | 6-3,6-0 |
| ITF M15 Antalya | 2021/11/18 06:25 | Daniel Michalski v Ilya Snitari | 7-6,7-6 |
| ITF M15 Antalya | 2021/11/16 06:30 | Daniel Michalski v Baran Cengiz | 6-1,6-1 |