Stadium: Court 3 Round: 54 Ground: Carpet indoor
| ITF Poland F8 | 2018/08/21 13:00 | Piotr Grynkowski v Jelle Sels | 3-6,2-6 |
| ITF Poland F8 | 2018/08/20 09:30 | Robert Strombachs v Piotr Grynkowski | 1-6,1-6 |
| ITF Poland F7 | 2018/08/14 14:50 | Piotr Grynkowski v Vladyslav Orlov | 5-7,0-6 |
| ITF Poland F7 | 2018/08/13 10:20 | Piotr Grynkowski v Mikolaj Borkowski | 6-3,6-3 |
| ITF Poland F7 | 2018/08/12 11:00 | Piotr Grynkowski v Marco Di Maro | 7-5,6-3 |
| ITF Poland F6 | 2018/08/07 08:00 | Szymon Walkow v Piotr Grynkowski | 6-3,6-2 |
| ITF Ireland F1 Qual | 2018/07/30 09:30 | Piotr Grynkowski v Jonathan Binding | 4-6,2-6 |
| ITF Czech Republic F5 Qual | 2018/07/02 10:00 | Piotr Grynkowski v Antonin Stepanek | 2-6,0-6 |
| ITF Spain F24 | 2018/08/19 13:00 | John Echeverria v Ivan Marrero Curbelo | 7-6,7-5 |
| ITF Spain F23 | 2018/08/14 14:30 | Ivan Marrero Curbelo v Sergio Martos Gornes | 6-7,3-6 |
| ITF Spain F22 | 2018/08/09 21:40 | Oriol Roca Batalla v Ivan Marrero Curbelo | 6-4,6-1 |
| ITF Spain F22 | 2018/08/07 17:15 | Ivan Marrero Curbelo v Blas Ruiz Romero | 6-0,6-2 |
| ITF Spain F18 Qual | 2018/07/07 16:30 | Pol Fernandez v Ivan Marrero Curbelo | 2-6,5-7 |
| ITF Portugal F11 | 2018/07/06 12:05 | Ivan Marrero Curbelo v Mark Whitehouse | 0-6,2-6 |
| ITF Portugal F11 | 2018/07/05 12:15 | Christopher Diaz-Figueroa v Ivan Marrero Curbelo | 6-4,4-6,4-6 |
| ITF Portugal F11 | 2018/07/04 08:30 | Tigre Hank v Ivan Marrero Curbelo | 6-7,6-7 |