Round: 54 Ground: Clay
| ITF - Suécia F5 | 2018/10/02 13:25 | Gustaf Strom v Nikola Slavic | 6-4,6-4 |
| ITF - Suécia F5 | 2018/09/30 08:00 | Lucas Renard v Nikola Slavic | 4-6,2-6 |
| ITF - Suécia F5 | 2018/09/29 08:00 | Nikola Slavic v Oliver Andersson | 6-3,6-4 |
| ITF - Suécia F4 | 2018/09/22 13:00 | Nikola Slavic v Simon Yitbarek | 3-6,1-6 |
| ITF - Eslováquia F2 | 2018/07/29 13:00 | Nikola Slavic v Matthew Kandath | 6-1,2-6,2-6 |
| ITF - Alemanha F5 | 2018/06/25 08:00 | Mateusz Terczynski v Nikola Slavic | 6-1,7-6 |
| ITF - Turquia F14 | 2018/04/07 07:30 | Nikola Slavic v Valentin Vanta | 0-6,3-6 |
| ITF - Grécia F2 | 2018/03/03 07:30 | Nikola Slavic v Corrado Summaria | 3-6,3-6 |
| ITF - Letónia F1 | 2018/07/28 07:00 | Esteban Bruna v Gustavs Lukstins | 6-4,6-1 |
| ITF - Lituânia F1 | 2018/07/21 07:00 | Gustavs Lukstins v Roberts Grinvalds | 5-7,0-6 |
| ITF - Estónia F1 | 2018/07/14 08:00 | Gustavs Lukstins v Rudolfs Mednis | 6-7,2-6 |
| ITF - Bélgica F3 - Qualificação | 2018/07/01 12:00 | Gustavs Lukstins v Sam Taylor | 6-7,2-6 |
| ITF - Turquia F6 | 2018/02/10 09:00 | Gustavs Lukstins v Ryuki Matsuda | 0-6,1-6 |
| ITF - Turquia F3 | 2018/01/22 10:00 | Muhammet Haylaz v Gustavs Lukstins | 6-1,7-5 |
| ITF - Turquia F3 | 2018/01/20 07:00 | Gustavs Lukstins v Amir Hossein Badi | 6-3,2-6,6-2 |
| ITF - Estónia F4 | 2017/11/04 11:00 | Riccardo Maiga v Gustavs Lukstins | 7-5,6-2 |