| United Cup | 01/02 11:20 | - | [260] Daniel Michalski v Marc-Andrea Huesler [56] | 3-6,2-6 | |
| United Cup | 12/31 06:55 | - | [260] Daniel Michalski v Timofey Skatov [142] | 6-7,2-6 | |
| Challenger de Maspalomas | 11/29 09:30 | 25 | [417] Pablo Llamas Ruiz v Daniel Michalski [255] | 6-1,6-4 | |
| Challenger de Valencia | 11/22 11:45 | 25 | [370] Gian Marco Moroni v Daniel Michalski [250] | 6-3,6-3 | |
| ITF 15 Antalya | 11/19 07:00 | 28 | [247] Daniel Michalski v Alexander Weis [407] | 0-6,3-6 | |
| ITF 15 Antalya | 11/18 07:00 | 27 | Daniel Michalski v Mircea-Alexandru Jecan | 6-3,6-3 | |
| ITF 15 Antalya | 11/17 07:55 | 26 | Daniel Michalski v Savva Polukhin | 6-1,7-5 | |
| ITF 15 Antalya | 11/16 09:30 | 25 | Daniel Michalski v Igor Shrolik | 6-2,6-0 | |
| ITF M25 Antalya | 11/11 07:30 | 27 | Dan Alexandru Tomescu v Daniel Michalski | 6-0,6-4 | |
| ITF M25 Antalya | 11/10 08:35 | 26 | Davide Galoppini v Daniel Michalski | 5-7,2-6 | |
| ITF M25 Antalya | 11/08 09:10 | 25 | [471] Corentin Denolly v Daniel Michalski [244] | 0-6,3-6 | |
| ITF 15 Antalya | 11/04 07:00 | 27 | Daniel Michalski v Rrezart Cungu | 5-7,6-3,0-6 | |
| ITF 15 Antalya | 11/03 10:05 | 26 | Daniel Michalski v Maxime Mora | 6-4,7-5 | |
| ITF 15 Antalya | 11/02 08:50 | 25 | Daniel Michalski v Denis Klok | 7-5,2-6,6-4 | |
| ITF M25 Santa Margarita | 10/22 08:55 | 29 | [263] Daniel Michalski v Timo Stodder [378] | 7-6,6-3 | |
| ITF M25 Santa Margarita | 10/21 10:00 | 28 | [263] Daniel Michalski v Alexander Weis [415] | 6-2,6-3 | |
| ITF M25 Santa Margarita | 10/20 14:10 | 27 | [263] Daniel Michalski v Francesco Forti [457] | 6-2,6-2 | |
| ITF M25 Santa Margarita | 10/19 17:40 | 26 | Daniel Michalski v Davide Galoppini | 6-2,7-6 | |
| ITF M25 Santa Margarita | 10/18 16:25 | 25 | Daniel Michalski v Filippo Speziali | 6-4,7-5 | |
| ITF M25 Santa Margarita | 10/15 11:00 | 28 | [260] Daniel Michalski v Timo Stodder [425] | 2-6,5-7 | |
| ITF M25 Santa Margarita | 10/15 08:00 | 26 | Daniel Michalski v Manuel Mazza | Cancelled | |
| ITF M25 Santa Margarita | 10/14 14:20 | 27 | [260] Daniel Michalski v Cezar Cretu [383] | 6-2,6-1 | |
| ITF M25 Santa Margarita | 10/14 09:00 | 26 | Daniel Michalski v Stefanos Sakellaridis | Retired | |
| ITF M25 Santa Margarita | 10/10 14:55 | 25 | Daniel Michalski v Niccolo Ciavarella | 6-0,6-3 | |
| Challenger de Lisboa | 09/27 16:55 | 25 | [137] Marco Cecchinato v Daniel Michalski [244] | 6-1,6-2 | |
| Challenger de Lisboa | 09/26 09:00 | 19 | Daniel Michalski v Jeremy Jahn | 3-6,2-6 | |
| Challenger de Lisboa | 09/25 09:00 | 14 | [247] Daniel Michalski v Inigo Cervantes [237] | 6-2,4-6,7-6 | |
| Challenger de Lisboa | 09/25 09:00 | 14 | [247] Daniel Michalski v Ergi Kirkin [387] | Cancelled | |
| Challenger de Braga | 09/19 14:30 | 25 | [247] Daniel Michalski v Alexandre Muller [149] | 6-7,2-6 | |
| Challenger de Szczecin | 09/14 12:30 | 26 | [256] Daniel Michalski v Roberto Carballes Baena [73] | 1-6,2-6 |