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