Stadium: Court 2 Round: 44 Ground: Clay
| ITF Belgium F7 | 2018/08/09 10:30 | Meuffels, Alban v Tomas Martin Etcheverry | 6-7,4-6 |
| ITF Belgium F7 | 2018/08/07 15:30 | Reuter, Yannik v Meuffels, Alban | 6-7,4-6 |
| ITF Belgium F7 Qual | 2018/08/06 11:05 | Huertas Del Pino Cordova, Arklon v Meuffels, Alban | 3-6,4-6 |
| ITF Belgium F7 Qual | 2018/08/05 13:00 | Meuffels, Alban v Nickels, Christophe | 6-2,6-3 |
| ITF Belgium F7 Qual | 2018/08/04 07:30 | Gutierrez, Esteban v Meuffels, Alban | 0-6,0-6 |
| ITF Belgium F6 Qual | 2018/07/28 09:30 | Meuffels, Alban v Eisinga, Zachary | 6-3,5-7,2-6 |
| ITF Netherlands F3 | 2018/07/08 11:30 | Meuffels, Alban v Daljev, Pavle | 7-6,6-2 |
| ITF Netherlands F3 | 2018/07/07 09:30 | Admiraal, Amadatus v Meuffels, Alban | 3-6,3-6 |
| 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 Poland F6 Qual | 2018/08/05 09:30 | Guttau, Niklas v Iftimie, Michele Lorenzo | 5-7,6-2,6-3 |
| ATP Hamburg Qual | 2018/07/21 12:45 | Jozef Kovalik v Guttau, Niklas | 6-0,6-1 |
| ITF Germany F8 Qual | 2018/07/16 10:30 | Seibert, Tim v Guttau, Niklas | 6-7,7-6,6-2 |
| ITF Germany F8 Qual | 2018/07/15 12:30 | Sudzum, Marcel Marlon v Guttau, Niklas | 4-6,0-6 |
| ITF Germany F8 Qual | 2018/07/15 08:30 | Marlon Vankan v Guttau, Niklas | 1-6,2-6 |
| Challenger Braunschweig Qual | 2018/07/07 09:30 | Kimmer Coppejans v Guttau, Niklas | 6-3,6-1 |