Stadium: Harland 1 Round: 44 Ground: Clay
| ITF Austria F3 | 2018/07/14 07:15 | Marko Ilic v Andreas Kramer | 6-2,2-6,6-4 |
| ITF Austria F1 | 2018/07/01 07:30 | Adrian Bodmer v Andreas Kramer | 6-4,6-0 |
| ITF Austria F1 | 2018/06/30 11:00 | Andreas Kramer v Martin Fekiac | 6-2,3-6,6-1 |
| ITF Austria F1 | 2018/06/30 07:00 | Bernie Schranz v Andreas Kramer | 6-2,0-6,6-7 |
| ITF Greece F5 | 2018/03/25 08:00 | Franco Feitt v Andreas Kramer | 6-1,6-1 |
| ITF Greece F4 | 2018/03/18 09:30 | Andreas Kramer v Mateo Nicolas Martinez | 1-6,3-6 |
| ITF Greece F4 | 2018/03/17 07:30 | Andreas Kramer v Pietro R Scomparin | 6-3,6-0 |
| ITF Spain F1 | 2018/01/13 11:00 | Arthur Hugounenq v Andreas Kramer | 7-6,6-2 |
| ITF Guam F1 | 2018/06/18 02:10 | Hiroyasu Ehara v Ren Nakamura | 6-4,6-4 |
| ITF Tunisia F21 | 2018/05/26 10:00 | Ren Nakamura v Sacha Modica | 3-6,2-6 |
| ITF Tunisia F20 | 2018/05/23 11:55 | Ren Nakamura v Quentin Gueydan | 3-6,0-6 |
| ITF Tunisia F20 | 2018/05/20 09:00 | Marko Vejnovic v Ren Nakamura | 3-6,5-7 |
| ITF Tunisia F20 | 2018/05/19 09:00 | Connor Johnson v Ren Nakamura | 1-6,3-6 |
| ITF Tunisia F19 | 2018/05/17 09:00 | Vasko Mladenov v Ren Nakamura | 6-4,6-2 |
| ITF Tunisia F19 | 2018/05/15 10:30 | Aleksei Khomich v Ren Nakamura | 3-6,3-6 |
| ITF Tunisia F19 | 2018/05/13 09:00 | Ren Nakamura v Jorge Blanco Guadalupe | 1-6,6-4,6-2 |