Stadium: Court 1 Round: 44 Ground: Clay
| ITF M15 Szczawno | 2023/08/28 17:45 | Piotr Kusiewicz v Gabriel Matuszewski | 6-4,3-6,5-10 |
| ITF M15 Szczawno | 2023/08/28 09:40 | Piotr Kusiewicz v Marcel Dzielo | 6-1,7-5 |
| ITF M25 Poznan | 2023/08/21 12:55 | Przemyslaw Michocki v Piotr Kusiewicz | 6-4,6-2 |
| ITF M25 Bielsko Biala | 2023/08/14 10:30 | Piotr Kusiewicz v Andrea Meduri | 1-6,2-6 |
| ITF M25 Lodz | 2023/08/07 07:30 | Piotr Kusiewicz v Baklanov, Egor | 7-6,5-7,8-10 |
| ITF M25 Kramsach | 2023/07/24 09:00 | Piotr Kusiewicz v Ivan Kremenchutskyi | 2-6,1-6 |
| ITF M25 Kramsach | 2023/07/23 15:00 | Piotr Kusiewicz v Elias Sumann | 6-3,3-6,10-5 |
| ITF M25 Kramsach | 2023/07/23 07:00 | Piotr Kusiewicz v Adam Blecha | 6-2,6-3 |
| Koszalin, Singles Qualifying M-ITF-POL-02A | 2023/09/03 09:00 | Alexander C Parker v Mattia Ricci | 6-2,2-6,10-7 |
| ITF - M15 Alaminos-Larnaca | 2023/04/24 07:00 | Alexander C Parker v Jiri Cizek | 6-7,6-7 |
| ITF M25 Manacor | 2023/01/09 14:30 | Alexander C Parker v Sergi Fita Juan | 3-6,7-5,2-10 |
| ITF M15 Parnu | 2022/10/24 09:30 | Saatela, Leevi v Alexander C Parker | 5-7,7-5,10-5 |
| ITF Switzerland F1 Qual | 2017/02/05 11:30 | Alexander C Parker v Kirill Kivattsev | 3-6,0-6 |
| ITF Spain F38 | 2016/11/13 10:00 | Fernandez-Espinar, Carlos v Alexander C Parker | 3-6,6-2,6-1 |
| ITF Spain F38 | 2016/11/12 11:30 | Blanco Damea, Alvaro v Alexander C Parker | 1-6,6-2,3-6 |
| ITF Spain F36 | 2016/11/10 10:30 | Alexander C Parker v Ojeda Lara, Ricardo | 1-6,0-6 |