Stadium: Court 3 Round: 26 Ground: Clay
| ITF Italy F25 | 2018/08/28 15:00 | Reinwein, Sami v Gabriele Bosio | 6-2,6-3 |
| Challenger Gwangju Qual | 2018/08/13 01:00 | Nam, Ji Sung v Reinwein, Sami | 6-2,6-4 |
| Challenger Gwangju Qual | 2018/08/12 03:00 | Reinwein, Sami v Yu Hsiou Hsu | 7-5,6-2 |
| Jinan, China | 2018/08/04 04:30 | Mukund Sasikumar v Reinwein, Sami | 6-1,7-5 |
| Challenger Chengdu Qual | 2018/07/28 05:45 | Reinwein, Sami v Makoto Ochi | 5-7,2-6 |
| Challenger Chengdu Qual | 2018/07/28 02:00 | Lo, Chien Hsun v Reinwein, Sami | 4-6,4-6 |
| ITF China F7 | 2018/05/28 04:50 | Reinwein, Sami v Li, Yuanfeng | 6-7,2-6 |
| ITF China F6 | 2018/05/18 03:55 | Reinwein, Sami v Kuan-Yi Lee | 6-0,6-4 |
| ITF Italy F25 | 2018/08/27 12:00 | Zarichanskiy, D. v Johnson, Luke | 0-6,3-6 |
| ITF Ireland F1 | 2018/08/01 08:30 | Berg, Conor v Johnson, Luke | 4-6,6-3,6-2 |
| Challenger Granby Qual | 2018/07/22 21:30 | Wishaya Trongcharoenchaikul v Johnson, Luke | 4-6,6-4,6-3 |
| Challenger Granby Qual | 2018/07/21 18:20 | Dan Martin v Johnson, Luke | 3-6,6-7 |
| Challenger Gatineau Qual | 2018/07/15 01:05 | Johnson, Luke v Garanganga, Takanyi | 4-6,4-6 |
| Challenger Winnipeg Qual | 2018/07/08 15:00 | Wolf, Jeffrey John v Johnson, Luke | 6-3,6-1 |
| Challenger Ilkley Qual | 2018/06/17 10:00 | Hiroki Moriya v Johnson, Luke | 6-3,6-3 |
| ITF Israel F8 | 2018/06/06 07:00 | Kobelt, Peter v Johnson, Luke | 6-1,6-4 |