Stadium: Center Court Round: 27 Ground: Hardcourt outdoor
| ITF M15 - Monastir | 2023/03/16 08:30 | Olaf Pieczkowski v Luigi Sorrentino | 6-3,6-4 |
| ITF M15 - Monastir | 2023/03/14 11:40 | Alexis Boureau v Olaf Pieczkowski | 2-6,1-6 |
| ITF M15 - Monastir | 2023/03/07 10:30 | Olaf Pieczkowski v Stefano Napolitano | 4-6,3-6 |
| ITF M15 - Monastir | 2023/02/12 08:30 | Ryan Nijboer v Olaf Pieczkowski | 7-6,6-2 |
| ITF M15 - Monastir | 2023/02/11 15:00 | Tim Handel v Olaf Pieczkowski | 2-6,6-7 |
| ITF M15 - Monastir | 2023/02/11 10:45 | Olaf Pieczkowski v Giorgio Tabacco | 6-3,6-4 |
| ITF M15 - Monastir | 2023/02/08 11:00 | Olaf Pieczkowski v Dali Blanch | 7-5,6-0 |
| ITF M15 - Monastir | 2023/02/02 11:20 | Kalin Ivanovski v Olaf Pieczkowski | 6-2,6-1 |
| ITF M15 - Monastir | 2023/03/16 12:40 | Lorenzo Carboni v Szymon Kielan | 6-7,6-1,4-6 |
| ITF M15 - Monastir | 2023/03/14 12:40 | Josh Roe Flannelly v Szymon Kielan | 2-6,3-6 |
| ITF M15 - Monastir | 2023/03/09 11:30 | Szymon Kielan v Lorenzo Carboni | 3-6,3-6 |
| ITF M15 - Monastir | 2023/03/07 13:15 | Szymon Kielan v Franco Roncadelli | 6-0,5-7,6-3 |
| ITF M15 - Sharm El Sheikh | 2023/02/19 08:00 | Peter Fajta v Szymon Kielan | 6-3,6-2 |
| ITF M15 - Sharm El Sheikh | 2023/02/18 08:00 | Szymon Kielan v Simone Roncalli | 6-4,6-4 |
| ITF M15 - Sharm El Sheikh | 2023/02/17 08:00 | Johannes Ingildsen v Szymon Kielan | 3-6,3-6 |
| ITF M15 - Sharm El Sheikh | 2023/02/16 10:50 | Fares Zakaria v Szymon Kielan | 6-7,4-6 |