Round: 44 Ground: Hardcourt outdoor
| ITF Spain F17 Qual | 2018/07/01 07:30 | Paul Cayre v Hector B Martinez | 6-3,6-1 |
| ITF Spain F23 | 2018/08/11 08:30 | Chinmaya Dev Chauhan v Ruben Busch | 6-2,6-2 |
| ITF Spain F21 Qual | 2018/07/28 09:15 | Ruben Busch v Jack Gibbens | 2-6,4-6 |
| ITF Spain F19 Qual | 2018/07/14 07:30 | Gianni Ross v Ruben Busch | 6-0,6-2 |
| ITF Tunisia F23 | 2018/06/10 10:00 | Edris Fetisleam v Ruben Busch | 6-0,6-3 |
| ITF Turkey F16 | 2018/04/21 09:30 | Bastien Kolly v Ruben Busch | 6-3,6-0 |
| ITF Turkey F15 | 2018/04/14 07:30 | Linus Frost v Ruben Busch | 6-1,6-1 |
| ITF Turkey F14 | 2018/04/07 11:00 | Ruben Busch v Juan Pablo Cenoz | 6-7,1-6 |
| ITF Spain F7 | 2018/03/17 12:30 | Rafael Mazon-Hernandez v Ruben Busch | 6-1,6-3 |