Stadium: Court Central Round: 28 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2023/10/26 12:30 | Jaka Protic Zakelj v Guido Ivan Justo | 1-6,0-6 |
| ITF M15 Monastir | 2023/10/25 12:30 | Noel Larwig v Guido Ivan Justo | 6-7,2-6 |
| ITF M15 Castellon | 2023/10/21 08:40 | Guido Ivan Justo v Miguel Damas | 6-3,6-2 |
| ITF M15 Castellon | 2023/10/20 10:00 | Guido Ivan Justo v Georgii Kravchenko | 7-5,6-4 |
| ITF M15 Castellon | 2023/10/19 11:45 | Guido Ivan Justo v Max Alcala Gurri | 6-3,6-2 |
| ITF M15 Castellon | 2023/10/19 07:30 | Alvaro Lopez San Martin v Guido Ivan Justo | 1-6,7-6,3-6 |
| ITF M15 Castellon | 2023/10/18 07:25 | Guido Ivan Justo v Leonid Sheyngezikht | 7-5,6-2 |
| ITF M15 Monastir | 2023/10/13 08:00 | Kai Wehnelt v Guido Ivan Justo | 6-3,4-6,6-4 |
| ITF M15 Monastir | 2023/10/27 08:30 | Adrien Gobat v Olaf Pieczkowski | 4-6,5-7 |
| ITF M15 Monastir | 2023/10/26 08:30 | Louis Tessa v Olaf Pieczkowski | 2-6,6-7 |
| ITF M15 Monastir | 2023/10/25 12:30 | Yuta Kikuchi v Olaf Pieczkowski | 6-7,4-6 |
| ITF M15 Doha | 2023/10/12 13:00 | Marat Sharipov v Olaf Pieczkowski | 6-7,6-2,6-2 |
| ITF M15 Doha | 2023/10/09 15:10 | Mashari Nawaf v Olaf Pieczkowski | 1-6,1-6 |
| ITF M15 Doha | 2023/10/06 12:55 | Coleman Wong v Olaf Pieczkowski | 7-6,6-3 |
| ITF M15 Doha | 2023/10/05 14:20 | Zach Stephens v Olaf Pieczkowski | 3-6,3-6 |
| ITF M15 Doha | 2023/10/04 18:10 | Grigoriy Lomakin v Olaf Pieczkowski | 3-6,4-6 |