| ITF M25 Santa Margarita | 05/05 07:55 | 28 | [340] Lukas Neumayer v Daniel Michalski [272] | 4-6,1-6 | |
| ITF M25 Santa Margarita | 05/04 09:55 | 27 | Mikalai Haliak v Daniel Michalski | 4-6,4-6 | |
| ITF M25 Santa Margarita | 05/03 15:55 | 26 | Alessandro Cortegiani v Daniel Michalski | 3-6,2-6 | |
| ITF M25 Santa Margarita | 05/02 09:20 | 25 | Michele Ribecai v Daniel Michalski | 6-7,0-6 | |
| ITF M25 Santa Margarita | 04/15 09:30 | 29 | [325] Daniel Michalski v Goncalo Oliveira [378] | 3-6,2-6 | |
| ITF M25 Santa Margarita | 04/14 09:45 | 28 | Pietro Marino v Daniel Michalski | 2-6,5-7 | |
| ITF M25 Santa Margarita | 04/13 11:20 | 27 | [414] Gianmarco Ferrari v Daniel Michalski [325] | 6-3,6-7,4-6 | |
| ITF M25 Santa Margarita | 04/12 13:40 | 26 | [407] Andrey Chepelev v Daniel Michalski [325] | 3-6,5-7 | |
| ITF M25 Santa Margarita | 04/11 10:20 | 25 | Federico Iannaccone v Daniel Michalski | 5-7,0-6 | |
| ITF M25 Santa Margarita | 04/08 09:00 | 29 | [327] Daniel Michalski v Timo Legout [455] | 6-4,6-3 | |
| ITF M25 Santa Margarita | 04/07 09:30 | 28 | [327] Daniel Michalski v Goncalo Oliveira [380] | 6-2,4-6,6-3 | |
| ITF M25 Santa Margarita | 04/06 08:30 | 27 | [327] Daniel Michalski v Francesco Forti [373] | 6-4,6-2 | |
| ITF M25 Santa Margarita | 04/05 08:30 | 26 | Daniel Michalski v Luigi Sorrentino | 6-2,3-6,6-2 | |
| ITF M25 Santa Margarita | 04/03 11:30 | 25 | Daniel Michalski v Nicolas Parizzia | 6-1,6-3 | |
| Challenger de Székesfehérvár | 03/15 12:00 | 26 | [278] Daniel Michalski v Zsombor Piros [179] | Retired | |
| Challenger de Székesfehérvár | 03/14 09:00 | 25 | [384] Julian Ocleppo v Daniel Michalski [278] | 6-7,3-6 | |
| Challenger de Antalya | 03/10 08:00 | 27 | [278] Daniel Michalski v Fabian Marozsan [163] | 6-1,1-6,2-6 | |
| Challenger de Antalya | 03/09 09:40 | 26 | [229] Nicholas D Ionel v Daniel Michalski [278] | 0-6,3-6 | |
| Challenger de Antalya | 03/07 11:10 | 25 | [278] Daniel Michalski v Joao Domingues [283] | 4-6,6-0,6-0 | |
| Challenger de Manama | 02/16 14:20 | 26 | [79] Jason Kubler v Daniel Michalski [271] | 6-3,6-3 | |
| Challenger de Manama | 02/14 13:00 | 25 | Yusuf Qaed v Daniel Michalski | 1-6,3-6 | |
| Copa Davis | 02/05 06:35 | - | Taro Daniel v Daniel Michalski | Cancelled | |
| Copa Davis | 02/04 02:45 | - | [33] Yoshihito Nishioka v Daniel Michalski [273] | 6-3,6-2 | |
| Challenger de Nonthaburi | 01/19 04:55 | 26 | [250] Daniel Michalski v Antoine Escoffier [192] | 3-6,6-4,1-6 | |
| Challenger de Nonthaburi | 01/17 08:20 | 25 | [250] Daniel Michalski v Dominik Palan [413] | 6-4,6-2 | |
| Challenger de Nonthaburi | 01/12 05:10 | 27 | [260] Daniel Michalski v Lloyd Harris [212] | 4-6,3-6 | |
| Challenger de Nonthaburi | 01/11 06:50 | 26 | [260] Daniel Michalski v Stefano Travaglia [309] | 7-6,7-6 | |
| Challenger de Nonthaburi | 01/10 06:50 | 25 | [260] Daniel Michalski v Shintaro Mochizuki [319] | 3-6,7-5,6-3 | |
| United Cup | 01/06 03:15 | 28 | Daniel Michalski v Frances Tiafoe | Cancelled | |
| United Cup | 01/04 02:30 | 19 | [260] Daniel Michalski v Lorenzo Musetti [23] | 1-6,1-6 |