Round: 44 Ground: Clay
| ITF Germany F7 | 2018/07/08 10:00 | Gilles Eckert v Pietro Schiavetti | 6-1,6-3 |
| ITF Germany F6 | 2018/07/02 09:00 | Gregorio Cordonnier v Patrick Mayer | 6-7,7-5,6-4 |
| ITF Germany F4 | 2018/06/17 12:00 | Daniil Klimov v Patrick Mayer | 6-2,7-6 |
| ITF Germany F4 | 2018/06/16 10:30 | Patrick Mayer v Noah Prehn | 6-1,6-1 |
| ITF Czech Republic F3 Qual | 2018/05/27 08:00 | Philipp Davydenko v Patrick Mayer | 6-1,6-2 |
| ITF Czech Republic F3 Qual | 2018/05/26 09:00 | Patrick Mayer v Matteo Meneghetti | 6-1,6-0 |
| ITF Sweden F3 Qual | 2018/05/20 10:30 | Christoffer Solberg v Patrick Mayer | 6-3,6-4 |
| ITF Sweden F2 Qual | 2018/05/13 11:55 | Patrick Mayer v Marius Ruzgas | 4-6,2-6 |
| ITF Sweden F2 Qual | 2018/05/12 12:00 | Patrick Mayer v Erik Carlsten | 6-2,6-2 |