Stadium: Court 6 Round: 14 Ground: Clay
| ITF M15 Grodzisk Mazowiecki | 2025/06/25 09:30 | Filip Pieczonka v Markus Malaszszak | 2-6,2-4 |
| ITF M25 Monastir | 2025/06/03 10:30 | Filip Pieczonka v Thomas Braithwaite | 4-6,0-6 |
| Challenger Chisinau | 2025/05/26 12:30 | Stuart Parker v Filip Pieczonka | 6-4,6-2 |
| Challenger Chisinau | 2025/05/25 13:50 | Semen Pankin v Filip Pieczonka | 6-3,6-7,5-7 |
| Challenger Zagreb | 2025/05/11 13:20 | Rudolf Molleker v Filip Pieczonka | 6-2,6-7,6-4 |
| UTR Pro College Station | 2025/04/23 21:35 | Arman Zamani v Filip Pieczonka | 6-2,2-6,0-6 |
| UTR Pro College Station | 2025/04/23 17:30 | Ethan Silva v Filip Pieczonka | 3-6,5-7 |
| UTR Pro College Station | 2025/04/22 21:45 | Derek Pham v Filip Pieczonka | 4-6,4-6 |
| Challenger Trieste | 2025/07/11 12:00 | Sumit Nagal v Maxim Mrva | 6-1,3-6,6-1 |
| Challenger Trieste | 2025/07/10 10:50 | Federico Cina v Maxim Mrva | 4-6,5-7 |
| Challenger Trieste | 2025/07/09 12:55 | Maxim Mrva v Nikoloz Basilashvili | 3-6,6-2,6-0 |
| Challenger Trieste | 2025/07/07 10:50 | Maxim Mrva v Lukas Pokorny | 6-2,6-3 |
| Challenger Trieste | 2025/07/06 12:40 | Moez Echargui v Maxim Mrva | 5-7,6-1,6-7 |
| Challenger Brasov | 2025/07/01 10:05 | Maxim Mrva v Oriol Roca Batalla | 4-6,5-7 |
| Challenger Poznan | 2025/06/18 15:35 | Maxim Mrva v Martin Krumich | 5-7,7-6,1-6 |
| Challenger Poznan | 2025/06/17 11:45 | Maxim Mrva v Rudolf Molleker | 6-3,6-2 |