Stadium: Court 5 Round: 25 Ground: Clay
| ITF M25 Pazardzhik | 2023/09/26 07:45 | Sandro Kopp v Neil Oberleitner | 6-2,6-4 |
| Challenger Bad Waltersdorf | 2023/09/18 10:05 | Ergi Kirkin v Neil Oberleitner | 6-7,6-4,6-2 |
| Challenger Bad Waltersdorf | 2023/09/17 12:50 | Neil Oberleitner v Jacopo Berrettini | 6-1,7-6 |
| Challenger Szczecin | 2023/09/10 13:00 | Neil Oberleitner v Toby Alex Kodat | 3-6,6-1,3-6 |
| Challenger Tulln | 2023/09/05 13:15 | Neil Oberleitner v Lucas Miedler | 6-7,6-2,3-6 |
| Challenger Augsburg | 2023/08/21 08:00 | Hady Habib v Neil Oberleitner | 4-6,6-3,7-6 |
| Challenger Augsburg | 2023/08/20 08:00 | Neil Oberleitner v Constantin Bittoun Kouzmine | 6-2,6-4 |
| ITF M15 Kottingbrunn | 2023/08/19 08:00 | Matej Dodig v Neil Oberleitner | 2-6,6-3,6-2 |
| ITF M25 Zlatibor | 2023/09/30 08:30 | Andrew Paulson v Sebastian Gima | 6-4,6-1 |
| ITF M25 Zlatibor | 2023/09/29 11:30 | Sebastian Gima v David Pichler | 7-6,6-3 |
| ITF M25 Zlatibor | 2023/09/29 07:30 | Sebastian Gima v Bor Artnak | 6-4,7-5 |
| ITF M25 Zlatibor | 2023/09/28 09:45 | Sebastian Gima v Yuquan Jin | 1-6,6-2,10-5 |
| Challenger Sibiu | 2023/09/18 14:30 | Stefano Travaglia v Sebastian Gima | 7-6,6-3 |
| ITF M15 Constanta | 2023/09/05 10:45 | Sebastian Gima v Lautaro Agustin Falabella | 4-6,4-6 |
| ITF M15 Kursumlijska Banja | 2023/08/31 07:30 | Sebastian Gima v Emile Hudd | 3-6,6-3,3-6 |
| ITF M15 Kursumlijska Banja | 2023/08/30 08:35 | Sebastian Gima v Aleksei Khomich | 6-4,6-4 |