Stadium: Court 1 Round: 14 Ground: Hardcourt indoor
| ITF M25 Osijek | 2023/08/09 08:00 | Roko Horvat v Marcell Bartakovics | 3-6,3-6 |
| Challenger Salzburg | 2023/07/09 12:55 | Roko Horvat v Blaz Rola | 1-6,0-6 |
| ITF M15 Celje | 2023/06/28 11:00 | Roko Horvat v Gal Emersic Potocnik | 1-6,3-6 |
| ITF M15 Store | 2023/06/22 09:30 | Bor Artnak v Roko Horvat | 6-3,6-2 |
| ITF M15 Store | 2023/06/21 07:00 | Lun Obrul v Roko Horvat | 5-7,6-1,6-7 |
| ITF M15 Litija | 2023/06/13 07:00 | Admir Kalender v Roko Horvat | 1-6,6-3,6-4 |
| Challenger Drummondville | 2022/11/17 15:00 | Harold Mayot v Roko Horvat | 7-5,6-0 |
| Challenger Drummondville | 2022/11/15 20:45 | Roko Horvat v Constantin Frantzen | 7-6,6-1 |
| Challenger Knoxville | 2023/11/05 22:00 | Alexander Kotzen v Gabi Adrian Boitan | 7-6,4-6,3-6 |
| ITF M25 Edmonton | 2023/11/01 18:20 | Andres Martin v Alexander Kotzen | 6-0,6-3 |
| ITF M25 Saint-Augustin | 2023/10/26 16:30 | Mohamed Aziz Dougaz v Alexander Kotzen | 6-3,7-6 |
| ITF M25 Saint-Augustin | 2023/10/24 17:10 | Alexander Kotzen v Enzo Wallart | 6-3,6-4 |
| ITF M25 Southaven | 2023/08/10 22:45 | Alexander Kotzen v Martin Damm | 3-6,6-3,3-6 |
| ITF M25 Southaven | 2023/08/09 21:35 | Ishaan Ravichander v Alexander Kotzen | 6-7,1-6 |
| ITF M25 Decatur | 2023/08/03 19:20 | Alexander Kotzen v Jonah Braswell | 2-6,6-0,6-7 |
| ITF M25 Decatur | 2023/08/02 22:15 | Jacob Brumm v Alexander Kotzen | 3-6,1-6 |