Stadium: Court 1 Round: 27 Ground: Clay
| Polish National Tour | 2020/07/15 10:55 | Olaf Pieczkowski v Daniel Michalski | 2-6,3-6 |
| ITF M25 Poznan | 2024/08/22 13:15 | Olaf Pieczkowski v Jasza Szajrych | 6-1,6-4 |
| ITF M25 Poznan | 2024/08/21 14:20 | Olaf Pieczkowski v Kacper Zuk | 6-1,3-6,6-1 |
| ITF M15 Bielsko Biala | 2024/08/16 10:00 | Olaf Pieczkowski v Pawel Juszczak | 4-6,1-6 |
| ITF M15 Bielsko Biala | 2024/08/15 11:25 | Olaf Pieczkowski v Bruno Kokot | 6-2,6-2 |
| ITF M15 Bielsko Biala | 2024/08/14 10:10 | Olaf Pieczkowski v Daniil Ostapenkov | 6-2,6-4 |
| Challenger Luedenscheid | 2024/07/30 10:05 | Olaf Pieczkowski v Marko Topo | 3-6,4-6 |
| Challenger Luedenscheid | 2024/07/29 09:00 | Olaf Pieczkowski v Alex Knaff | 6-1,6-3 |
| Challenger Luedenscheid | 2024/07/28 10:08 | Olaf Pieczkowski v Filippo Romano | 7-6,2-6,6-1 |
| ITF M25 Poznan | 2024/08/22 11:30 | Tomasz Berkieta v Daniel Michalski | 3-6,1-6 |
| ITF M25 Poznan | 2024/08/21 16:00 | Szymon Kielan v Daniel Michalski | 1-6,3-6 |
| Challenger Bonn | 2024/08/05 11:50 | Juan Bautista Torres v Daniel Michalski | 6-1,6-2 |
| Challenger Bonn | 2024/08/04 14:35 | Patrick Zahraj v Daniel Michalski | 1-6,4-6 |
| ITF M25 Wetzlar | 2024/08/02 13:15 | Max Houkes v Daniel Michalski | 7-5,6-3 |
| ITF M25 Wetzlar | 2024/08/01 09:00 | Fons Van Sambeek v Daniel Michalski | 6-2,3-6,1-6 |
| ITF M25 Wetzlar | 2024/07/31 08:50 | Liam Gavrielides v Daniel Michalski | 6-7,1-6 |
| ITF M25 Kassel | 2024/07/12 16:10 | Raphael Collignon v Daniel Michalski | 6-1,6-3 |