Stadium: Court 1 Round: 62 Ground: Clay
| ITF M25 Telfs | 2023/07/18 10:05 | Buvaysar Gadamauri v Manuel Lazic | 6-2,6-0 |
| ITF M15 Warmbad-Villach | 2023/05/21 08:00 | Filippo Speziali v Manuel Lazic | 6-3,6-1 |
| ITF M15 Warmbad-Villach | 2023/05/21 07:00 | Aldin Jasarevic v Manuel Lazic | 1-6,0-6 |
| Challenger Mauthausen | 2023/05/07 11:20 | Manuel Lazic v Marius Copil | 3-6,0-6 |
| ITF M15 Antalya | 2023/03/05 06:30 | Manuel Lazic v Mirko Lagasio | 3-6,5-7 |
| ITF M15 Antalya | 2023/01/23 06:30 | Eric Vanshelboim v Manuel Lazic | 6-2,6-1 |
| ITF M15 Antalya | 2023/01/22 07:00 | Manuel Lazic v Mihail Kuseski | 6-1,6-3 |
| ITF M15 Antalya Qual | 2023/01/15 06:30 | Manuel Lazic v Danilo Raicevic | 4-6,2-6 |
| ITF M15 Novi Sad | 2023/07/24 11:15 | Dusan Milanovic v Filip Jeff Planinsek | 6-4,7-6 |
| ITF M15 Novi Sad | 2023/07/23 07:00 | Stefan Vedovelli v Filip Jeff Planinsek | 4-6,3-6 |
| ITF M25 Padova | 2023/07/10 08:00 | Gabriele Pennaforti v Filip Jeff Planinsek | 7-6,7-5 |
| ITF M25 Padova | 2023/07/09 09:00 | Gian M Di Natale v Filip Jeff Planinsek | 6-4,2-6,3-10 |
| ITF M15 Celje | 2023/06/28 14:45 | Eric Vanshelboim v Filip Jeff Planinsek | 6-2,2-6,6-4 |
| ITF M15 Celje | 2023/06/27 07:00 | Filip Jeff Planinsek v Jakub Kroslak | 6-3,6-3 |
| ITF M15 Celje | 2023/06/26 15:45 | Filip Jeff Planinsek v Jaka Tomazin | 6-4,6-2 |
| ITF M15 Store | 2023/06/21 10:30 | Bor Artnak v Filip Jeff Planinsek | 6-0,6-3 |