Stadium: Court 1 Round: 14 Ground: Hardcourt outdoor
| Challenger Szczecin | 2025/09/07 12:25 | Henri Squire v Szymon Kielan | 6-1,6-4 |
| Challenger Seville | 2025/08/31 15:55 | Miguel Damas v Szymon Kielan | 6-2,6-2 |
| Challenger Porto | 2025/08/25 10:35 | Maxwell McKennon v Szymon Kielan | 6-3,6-0 |
| Challenger Porto | 2025/08/24 11:05 | Szymon Kielan v Bautista Vilicich | 6-4,6-4 |
| ITF M15 Grodzisk Mazowiecki | 2025/06/27 09:00 | Zdenek Kolar v Szymon Kielan | 7-5,2-6,6-3 |
| ITF M15 Grodzisk Mazowiecki | 2025/06/26 09:30 | Patrik Munkhammar v Szymon Kielan | 2-6,4-6 |
| ITF M15 Grodzisk Mazowiecki | 2025/06/24 11:52 | Szymon Kielan v Franco Ribero | 4-6,6-1,6-3 |
| ITF M25 Monastir | 2025/06/04 11:39 | Moez Echargui v Szymon Kielan | 6-3,6-2 |
| ITF M15 Targu Jiu | 2025/08/13 10:00 | Radu David Turcanu v Alessandro Spadola | 6-0,6-1 |
| ITF M25 Cattolica | 2025/06/16 11:00 | Alessandro Spadola v Matteo Mesaglio | 1-6,6-3,0-1 |
| ITF M15 Messina | 2025/06/10 11:02 | Alessandro Spadola v Theo Papamalamis | 3-6,1-6 |
| ITF M15 Messina | 2025/06/09 11:30 | Alessandro Spadola v Rocco Piatti | 7-6,6-2 |
| ITF M25 Reggio Emilia | 2025/05/14 10:00 | Tommaso Compagnucci v Alessandro Spadola | 6-1,7-5 |
| ITF M25 Santa Margherita | 2025/04/23 13:44 | Alessandro Spadola v Arthur Gea | 4-6,3-6 |
| ITF M25 Santa Margherita | 2025/04/22 11:00 | Chirag Duhan v Alessandro Spadola | 4-6,6-3,0-1 |
| ITF M25 Santa Margherita | 2025/04/14 12:55 | Alessandro Spadola v Maximilian Figl | 3-6,6-4,0-1 |