Stadium: Court 15 Round: 44 Ground: Hardcourt outdoor
| ITF M15 Trier | 2023/08/21 15:00 | Sebastian Santibanez v Dominique Graf | 1-6,2-6 |
| ITF M15 Trier | 2023/08/21 09:30 | Raghav Jaisinghani v Sebastian Santibanez | 5-7,6-0,8-10 |
| ITF M15 Überlingen | 2023/08/14 14:00 | Sebastian Santibanez v Davud Amirov | 2-6,1-6 |
| ITF M15 Eupen | 2023/08/07 10:00 | Lawrence Sciglitano v Sebastian Santibanez | 5-7,6-2,14-12 |
| UTR Pro Pozos | 2023/01/22 15:00 | Alexander Aney v Sebastian Santibanez | 6-4,6-0 |
| UTR Pro Pozos | 2023/01/21 19:30 | Kyle Overmyer v Sebastian Santibanez | 4-6,1-6 |
| UTR Pro Pozos | 2023/01/21 00:37 | Daniel Salazar v Sebastian Santibanez | 3-6,6-4,6-2 |
| UTR Pro Pozos | 2023/01/19 18:00 | Ignacio Buse v Sebastian Santibanez | 6-1,6-0 |
| ITF M15 Koszalin | 2023/09/06 14:05 | Maciej Matuszczyk v Tom Gentzsch | 5-7,7-5,2-6 |
| ITF M15 Koszalin | 2023/09/05 07:30 | Maciej Matuszczyk v Gabriel Matuszewski | 1-6,6-4,10-8 |
| ITF M15 Koszalin | 2023/09/04 09:00 | Andy Allen v Maciej Matuszczyk | 1-6,4-6 |
| ITF M15 Szczawno | 2023/08/29 09:30 | Maciej Matuszczyk v Yann Wojcik | 4-6,4-6 |
| ITF M15 Szczawno | 2023/08/28 10:00 | Mikolaj Lis v Maciej Matuszczyk | 6-4,3-6,8-10 |
| ITF M25 Poznaň | 2023/08/20 12:00 | Michal Matuszewski v Maciej Matuszczyk | 6-3,7-5 |
| ITF M25 Bielsko Biala | 2023/08/13 11:00 | Maciej Matuszczyk v Andrea Meduri | 2-6,7-5,7-10 |
| ITF M25 Lodž | 2023/08/09 08:00 | Iiro Vasa v Maciej Matuszczyk | 6-3,6-1 |