| ITF Spain F14 Qual | 2018/06/02 14:30 | Alberto Barroso Campos v Nicholas Jovanovski | 6-0,6-1 |
| ITF Australia F4 Qual | 2018/03/24 03:30 | Nicholas Jovanovski v Brian Tran | 6-3,4-6,5-7 |
| ITF Australia F3 Qual | 2018/03/18 00:30 | Nicholas Jovanovski v James Tallman | 4-6,2-6 |
| ITF Australia F3 Qual | 2018/03/16 23:00 | Nicholas Jovanovski v Matthew Leffler | 7-6,6-1 |
| ITF Australia F2 Qual | 2018/03/02 23:00 | Yu Hsiou Hsu v Nicholas Jovanovski | 6-0,6-1 |
| ITF Australia F1 Qual | 2018/02/24 23:00 | Sam Longhurst v Nicholas Jovanovski | 7-5,1-6,6-1 |
| ITF Australia F1 Qual | 2018/02/23 23:00 | Nicholas Jovanovski v James Ibrahim | 6-4,4-6,6-4 |
| ITF Spain F21 Qual | 2017/07/09 09:00 | Luis Heredia Gomez v Nicholas Jovanovski | 6-3,6-0 |
| ITF Czech Republic F3 Qual | 2018/05/26 08:00 | Isa Mammetgulyyev v Ondrej Styler | 1-6,2-6 |
| ITF Hungary F3 | 2018/05/23 10:10 | Isa Mammetgulyyev v Marko Tepavac | 2-6,3-6 |
| ITF Hungary F3 | 2018/05/22 10:45 | Isa Mammetgulyyev v Edoardo Sardella | 6-3,6-1 |
| ITF Hungary F3 Qual | 2018/05/21 09:50 | Isa Mammetgulyyev v Adam Torocsik | 7-6,6-3 |
| ITF Greece F5 | 2018/03/25 10:00 | Isa Mammetgulyyev v Jannik Sinner | 5-7,3-6 |
| ITF Greece F5 | 2018/03/24 13:00 | Francis Pare v Isa Mammetgulyyev | 4-6,2-6 |
| ITF Greece F4 | 2018/03/17 07:30 | Isa Mammetgulyyev v Conor Berg | 2-6,2-6 |
| ITF Greece F3 | 2018/03/11 08:00 | Maksim Tikhomirov v Isa Mammetgulyyev | 6-1,6-4 |