| ITF M15 Ystad | 2025/08/14 08:15 | Brian Bozemoj v Nikola Slavic | 3-6,4-6 |
| ITF M15 Ystad | 2025/08/13 13:24 | Michael Minasyan v Nikola Slavic | 3-6,3-6 |
| ITF M25 Gentofte | 2025/07/30 11:13 | Nikola Slavic v Maxime Janvier | 6-1,6-7,1-6 |
| ITF M15 Lodz | 2025/07/10 09:30 | Nikola Slavic v Eero Vasa | 2-6,6-4,3-6 |
| ITF M15 Duffel | 2025/06/17 10:51 | Nikola Slavic v Kylian Collignon | 3-6,6-7 |
| ITF M15 Vaasa | 2025/06/12 11:43 | Aleksi Lofman v Nikola Slavic | 6-4,5-7,6-4 |
| ITF M15 Vaasa | 2025/06/11 13:55 | Nikola Slavic v Michael Zhu | 6-4,6-4 |
| ITF M25 Pensacola | 2025/05/15 16:30 | Nikola Slavic v Sebastian Gima | 2-6,2-5 |
| ITF M15 Ystad | 2025/08/11 14:24 | Isac Stroemberg v Jack Karlsson Winstrand | 6-1,6-1 |
| ITF M25 Gentofte | 2025/07/27 12:50 | Nikolaj Katic v Jack Karlsson Winstrand | 4-6,6-3,1-0 |
| ITF M25 Targu Mures | 2025/06/23 09:39 | Uladzimir Ignatik v Jack Karlsson Winstrand | 6-4,4-6,1-0 |
| ITF M25 Varnamo | 2025/06/11 07:15 | Sebastian Grundtvig Jorgensen v Jack Karlsson Winstrand | 7-6,6-0 |
| ITF M25 Varnamo | 2025/06/09 09:15 | Albert Widell v Jack Karlsson Winstrand | 4-6,3-6 |
| ITF M15 Bastad | 2025/05/15 07:45 | Tom Gentzsch v Jack Karlsson Winstrand | 6-3,6-1 |
| ITF M15 Bastad | 2025/05/14 09:48 | Oliver Johansson v Jack Karlsson Winstrand | 6-7,3-5 |
| ITF M15 Bastad | 2025/05/13 09:15 | Manel L Juncadella v Jack Karlsson Winstrand | 6-7,7-5,0-1 |