Stadium: Pista 3 Round: 14 Ground: Clay
| Challenger Braunschweig | 2025/07/06 11:00 | Robert Strombachs v Alex Molcan | 5-7,3-6 |
| Challenger Royan | 2025/06/17 11:20 | Arthur Gea v Robert Strombachs | 6-7,6-1,6-1 |
| Davis Cup | 2025/06/13 09:40 | Robert Strombachs v Ilya Snitari | 1-6,2-6 |
| Davis Cup | 2025/06/12 09:40 | Robert Strombachs v Alex De Gabriele | 6-0,2-6,6-4 |
| Davis Cup | 2025/06/11 09:30 | Robert Strombachs v Michael Avetisyan | 6-2,6-2 |
| Davis Cup | 2025/06/10 10:30 | Robert Strombachs v Petar Jovanovic | 6-3,3-6,5-7 |
| Challenger Chisinau | 2025/05/30 09:45 | Clement Chidekh v Robert Strombachs | 6-4,6-0 |
| Challenger Chisinau | 2025/05/29 10:10 | Evgeny Karlovskiy v Robert Strombachs | 3-6,2-6 |
| Challenger Grodzisk Mazowiecki | 2025/08/05 13:50 | Filip Pieczonka v Aslan Karatsev | 7-6,2-6,5-7 |
| Challenger Grodzisk Mazowiecki | 2025/08/03 14:50 | Filip Pieczonka v Vadym Ursu | 6-2,6-3 |
| Challenger Liberec | 2025/07/28 08:00 | Jakub Nicod v Filip Pieczonka | 3-6,6-4,6-2 |
| Challenger Liberec | 2025/07/27 08:00 | Filip Pieczonka v Tadeas Paroulek | 6-4,7-6 |
| 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 |