Stadium: Opatija 2 Round: 25 Ground: Clay
| ITF Croatia F3 | 2018/03/20 08:30 | Antun Vidak v Karlo Cubelic | 6-2,6-4 |
| ITF Croatia F2 | 2018/03/14 12:55 | Antun Vidak v Matej Sabanov | 6-4,6-7,4-6 |
| ITF Croatia F2 | 2018/03/13 08:00 | Oleksii Krutykh v Antun Vidak | 6-7,6-4,2-6 |
| ITF Croatia F2 | 2018/03/12 13:00 | Antun Vidak v Ruslan Khunarikov | 6-1,6-3 |
| ITF Croatia F2 | 2018/03/12 08:00 | Buvaysar Gadamauri v Antun Vidak | 7-6,2-6,2-6 |
| ITF Croatia F1 | 2018/03/07 09:00 | Deni Zmak v Antun Vidak | 6-1,3-6,10-6 |
| ITF Croatia F1 | 2018/03/04 13:00 | Antun Vidak v Charly Zick | 4-6,6-3,6-2 |
| ITF Turkey F6 | 2018/02/10 09:00 | Antun Vidak v Koray Kirci | 3-6,3-6 |
| ITF Croatia F2 | 2018/03/13 08:00 | Cezar Cretu v Karlo Kranic | 6-7,6-2,7-5 |
| ITF Croatia F2 | 2018/03/12 14:15 | Zvonimir Oreskovic v Karlo Kranic | 2-6,4-6 |
| ITF Croatia F1 | 2018/03/08 09:00 | Karlo Kranic v Ivan Sabanov | 0-6,6-4,8-10 |
| ITF Croatia F1 | 2018/03/07 09:00 | Sebastian Prechtel v Karlo Kranic | 2-6,7-5,4-10 |
| ITF Tunisia F36 | 2017/11/23 08:30 | Fred Gil v Karlo Kranic | 6-4,6-1 |
| ITF Tunisia F36 | 2017/11/21 10:40 | Karlo Kranic v Nicolo Turchetti | 5-7,7-5,7-6 |
| ITF Tunisia F36 | 2017/11/20 09:30 | Karlo Kranic v Andrea Trapani | 6-3,6-1 |
| ITF Tunisia F36 | 2017/11/19 08:30 | Aitor S Llopis v Karlo Kranic | 4-6,3-6 |