Stadium: Court 5 Round: 28
| ITF Ireland F1 | 2018/08/01 08:30 | Conor Berg v Luke Johnson | 4-6,6-3,6-2 |
| Challenger Granby Qual | 2018/07/22 21:30 | Wishaya Trongcharoenchaikul v Luke Johnson | 4-6,6-4,6-3 |
| Challenger Granby Qual | 2018/07/21 18:20 | Dan Martin v Luke Johnson | 3-6,6-7 |
| Challenger Gatineau Qual | 2018/07/15 01:05 | Luke Johnson v Takanyi Garanganga | 4-6,4-6 |
| Challenger Winnipeg Qual | 2018/07/08 15:00 | Jeffrey John Wolf v Luke Johnson | 6-3,6-1 |
| Challenger Ilkley Qual | 2018/06/17 10:00 | Hiroki Moriya v Luke Johnson | 6-3,6-3 |
| ITF Israel F8 | 2018/06/06 07:00 | Peter Kobelt v Luke Johnson | 6-1,6-4 |
| ITF Israel F8 | 2018/06/05 07:30 | Luke Johnson v Bernardo Saraiva | 7-6,6-4 |
| ITF France F13 | 2018/07/15 17:30 | Aslan Karatsev v Remi Boutillier | 7-6,4-6,6-3 |
| ITF France F13 | 2018/07/14 20:05 | Aslan Karatsev v Sora Fukuda | 6-3,6-0 |
| ITF France F13 | 2018/07/13 19:25 | Laurent Rochette v Aslan Karatsev | 5-7,1-6 |
| ITF France F13 | 2018/07/11 17:00 | Aslan Karatsev v Altug Celikbilek | 6-1,6-0 |
| ITF France F13 | 2018/07/09 08:00 | Lucas Poullain v Aslan Karatsev | 6-4,4-6,2-6 |
| Challenger Recanati Qual | 2018/07/01 09:40 | Andres Artunedo Martinavarr v Aslan Karatsev | 7-6,6-1 |
| Challenger Recanati Qual | 2018/06/30 12:30 | Aslan Karatsev v Gianluca Manco | 6-1,6-1 |
| Challenger Fergana Qual | 2018/06/18 05:00 | Saketh Myneni v Aslan Karatsev | 6-2,4-6,6-3 |