Stadium: Clay 3 Round: 62 Ground: Clay
| ITF Turkey F30 | 2018/10/02 07:00 | Vanneste, Jeroen v Guttau, Niklas | 6-2,6-3 |
| ITF Turkey F30 | 2018/10/01 07:30 | Guttau, Niklas v Vicentiu Andrei Niculescu | 6-3,6-0 |
| ITF Turkey F30 | 2018/09/30 07:30 | Besednikov, Oleg v Guttau, Niklas | 5-7,0-6 |
| ITF Turkey F30 | 2018/09/29 07:00 | Guttau, Niklas v Neil Oberleitner | 6-3,6-4 |
| ITF Netherlands F5 | 2018/08/19 10:00 | Guttau, Niklas v Bruna, Esteban | 3-6,4-6 |
| ITF Netherlands F4 | 2018/08/11 09:00 | Meuffels, Alban v Guttau, Niklas | 6-3,6-4 |
| ITF Poland F6 | 2018/08/07 11:25 | Andrzejczuk, Adrian v Guttau, Niklas | 6-2,6-1 |
| ITF Poland F6 Qual | 2018/08/06 08:00 | Guttau, Niklas v Mlazga, Krzysztof | 6-2,6-4 |
| ITF Turkey F30 | 2018/09/30 07:30 | Myagkov, Dmitry v Walder, Jordi | 4-6,0-6 |
| ITF Turkey F28 | 2018/09/18 09:30 | Bachmaier, Philip v Myagkov, Dmitry | 4-6,6-4,6-2 |
| ITF Ukraine F4 | 2018/08/28 08:55 | Myagkov, Dmitry v Mora, Maxime | 3-6,1-6 |
| ITF Ukraine F4 | 2018/08/27 07:00 | Myagkov, Dmitry v Bronka, Adam | 6-3,6-3 |
| ITF Russia F7 | 2018/08/19 07:00 | Klimov, Philipp v Myagkov, Dmitry | 1-6,6-4,7-5 |
| ITF Russia F7 | 2018/08/18 09:30 | Kolobaev, Nikolay v Myagkov, Dmitry | 2-6,4-6 |
| ITF Russia F6 | 2018/08/12 10:00 | Myagkov, Dmitry v Baryshev, Alexey | 7-6,5-7,4-6 |
| ITF Russia F5 Qual | 2018/08/06 07:00 | Myagkov, Dmitry v Alexey Nesterov | 1-6,5-7 |