Round: 54 Ground: Hardcourt indoor
| ITF Belgium F10 | 2018/08/28 10:00 | Nikolas Sanchez Izquierdo v Mateusz Terczynski | 6-1,6-3 |
| ITF Poland F8 | 2018/08/19 09:30 | Mateusz Terczynski v Michal Mikula | 6-7,4-6 |
| ITF Poland F6 | 2018/08/07 13:55 | Mateusz Terczynski v Vladyslav Orlov | 7-5,3-6,1-6 |
| ITF Latvia F1 | 2018/07/30 07:10 | Nino Portales v Mateusz Terczynski | 6-3,0-6,6-4 |
| ITF Lithuania F1 | 2018/07/25 11:30 | Christoffer Solberg v Mateusz Terczynski | 6-3,5-7,7-5 |
| ITF Lithuania F1 | 2018/07/23 08:10 | Mateusz Terczynski v Julius Tverijonas | 5-7,7-5,7-6 |
| ITF Germany F6 | 2018/07/03 10:30 | Vasile Antonescu v Mateusz Terczynski | 6-7,6-4,6-2 |
| ITF Germany F5 | 2018/06/25 13:00 | Mateusz Terczynski v Tim Ruehl | 6-2,2-6,3-6 |
| ITF Great Britain F4 | 2018/09/11 11:10 | Frederik Press v Joseph Newman-Billington | 6-4,6-4 |
| ITF Great Britain F4 | 2018/09/10 09:30 | Daniil Glinka v Joseph Newman-Billington | 4-6,2-6 |
| ITF Great Britain F4 | 2018/09/09 11:30 | Matthew Clegg v Joseph Newman-Billington | 3-6,6-2,3-6 |