Stadium: Kvarner 5 Round: 60 Ground: Clay
| ITF Croatia F3 | 2018/03/18 08:00 | Tino Kovacic v Marco Di Maro | 6-1,3-6,7-5 |
| ITF Turkey F5 | 2018/02/04 07:30 | Vasil Kirkov v Tino Kovacic | 6-1,6-0 |
| ITF Turkey F44 | 2017/11/19 07:15 | Shahin Khaledan v Tino Kovacic | 6-1,6-3 |
| ITF Turkey F44 | 2017/11/18 06:45 | Tino Kovacic v Mustafa Erdogan | 7-6,6-1 |
| ITF Turkey F43 | 2017/11/14 06:45 | Tino Kovacic v Koray Kirci | 2-6,6-3,0-6 |
| ITF Turkey F43 | 2017/11/13 07:15 | Tino Kovacic v Yoan Georgiev | 7-5,6-1 |
| ITF Turkey F43 | 2017/11/12 09:00 | Mikhail Minakov v Tino Kovacic | 1-6,6-4,4-6 |
| ITF Turkey F43 | 2017/11/11 06:45 | Preston Connor v Tino Kovacic | 1-6,4-6 |
| ITF Croatia F3 | 2018/03/18 08:00 | Karlo Cubelic v Bernie Schranz | 6-3,6-2 |
| ITF Croatia F2 | 2018/03/12 08:00 | Karlo Cubelic v Nikolas Walterscheid-Tukic | 4-6,3-6 |
| ITF Croatia F1 | 2018/03/07 09:00 | Vasile Antonescu v Karlo Cubelic | 6-4,6-2 |
| ITF Croatia F1 | 2018/03/04 14:30 | Karlo Cubelic v Grega Boh | 6-0,6-2 |
| ITF Croatia F1 | 2018/03/04 09:00 | Dennis Katzenwadel v Karlo Cubelic | 3-6,0-6 |
| ITF Switzerland F1 Qual | 2018/02/04 11:30 | Dominik Kellovsky v Karlo Cubelic | 6-1,7-6 |
| ITF Germany F3 | 2018/01/30 12:30 | Valentin Guenther v Karlo Cubelic | 6-7,6-4,6-4 |
| ITF Germany F1 | 2018/01/08 12:30 | Karlo Cubelic v Kai Lemstra | 6-4,2-6,4-6 |