Ground: Hardcourt indoor
| ITF M15 Oslo | 2025/01/09 14:00 | Herman Hoeyeraal v Olaf Pieczkowski | 6-7,0-6 |
| ITF M15 Oslo | 2025/01/08 15:30 | Lewie Lane v Olaf Pieczkowski | 7-6,5-7,6-7 |
| ITF M25 Maputo | 2024/11/09 08:00 | Dominik Palan v Olaf Pieczkowski | 4-6,6-1,6-4 |
| ITF M25 Maputo | 2024/11/08 08:30 | Olaf Pieczkowski v Dylan Salton | 6-2,6-3 |
| ITF M25 Maputo | 2024/11/07 07:00 | Olaf Pieczkowski v Matthew Harris | 6-2,6-0 |
| ITF M25 Maputo | 2024/11/05 07:30 | Olaf Pieczkowski v Jossefa S Elias | 6-0,6-1 |
| ITF M25 Monastir | 2024/10/29 10:05 | Mohamed Aziz Dougaz v Olaf Pieczkowski | 6-4,6-2 |
| ITF M15 Monastir | 2024/10/26 08:30 | Altug Celikbilek v Olaf Pieczkowski | 6-2,6-4 |
| ITF M15 Oslo | 2025/01/09 11:00 | Filip Pieczonka v Vito Tonejc | 7-5,6-2 |
| ITF M15 Oslo | 2025/01/08 10:30 | Martyn Pawelski v Filip Pieczonka | 3-6,3-6 |
| ITF M25 Antalya | 2024/11/28 11:15 | Mika Brunold v Filip Pieczonka | 6-0,6-2 |
| ITF M25 Antalya | 2024/11/27 08:40 | Filip Pieczonka v Sergei Pogosian | 6-2,6-3 |
| ITF M25 Antalya | 2024/11/26 07:30 | Filip Pieczonka v Oskar Oliver Stuchlik | 5-7,6-0,10-3 |
| ITF M25 Antalya Qual | 2024/11/25 08:00 | Filip Pieczonka v Radu Valentin Filipache | 6-2,6-2 |
| ITF M25 Antalya | 2024/11/20 08:45 | Filip Pieczonka v Nerman Fatic | 1-6,5-7 |
| ITF M25 Antalya | 2024/11/19 14:05 | Filip Pieczonka v Radu David Turcanu | 6-4,6-0 |