Stadium: Court 1 Round: 45 Ground: Clay
| ITF Greece F5 | 2018/03/25 08:00 | Dominik Recek v Kristjan Tamm | 6-7,3-6 |
| ITF Greece F4 | 2018/03/19 08:00 | Robert Strombachs v Kristjan Tamm | 6-4,6-7,6-0 |
| ITF Greece F4 | 2018/03/18 09:30 | Anastasios Pavlis v Kristjan Tamm | 6-1,3-6,3-6 |
| ITF Greece F4 | 2018/03/17 07:30 | Milos Dabic v Kristjan Tamm | 4-6,3-6 |
| ITF Portugal F3 | 2018/03/05 17:00 | Joel Cannell v Kristjan Tamm | 7-5,6-1 |
| ITF Portugal F2 Qual | 2018/02/25 13:30 | Pedro Vives Marcos v Kristjan Tamm | 7-5,7-6 |
| ITF Portugal F2 Qual | 2018/02/25 10:00 | Hien Q H Pham v Kristjan Tamm | 4-6,0-6 |
| ITF Estonia F4 | 2017/11/07 10:25 | Kristjan Tamm v Simen Sunde Bratholm | 7-6,6-3 |
| ITF Croatia F3 | 2018/03/22 14:00 | Matteo Viola v Nik Razborsek | 7-6,6-3 |
| ITF Croatia F3 | 2018/03/21 10:30 | Tommaso Gabrieli v Nik Razborsek | 3-6,3-6 |
| ITF Croatia F2 | 2018/03/15 09:00 | Zdenek Kolar v Nik Razborsek | 6-7,4-6 |
| ITF Croatia F2 | 2018/03/14 10:35 | Sebastian Prechtel v Nik Razborsek | 1-6,6-4,4-6 |
| ITF Croatia F2 | 2018/03/12 11:00 | Nik Razborsek v Nicolo Crespi | 6-1,6-0 |
| ITF Croatia F2 | 2018/03/11 08:00 | Nik Razborsek v Matteo Fortini | 6-1,6-2 |
| ITF Croatia F1 | 2018/03/09 09:00 | Pavel Nejedly v Nik Razborsek | 7-5,6-2 |
| ITF Croatia F1 | 2018/03/08 11:30 | Nik Razborsek v Gabriel Schmidt | 6-2,4-6,10-7 |