Stadium: Court 5 Round: 54 Ground: Clay
| Challenger Tampere Qual | 2018/07/22 08:50 | Dimitar Kuzmanov v Kocevar-Desman, Tom | 6-4,2-6,6-3 |
| Challenger Tampere | 2018/07/21 09:45 | Dimitar Kuzmanov v Virtanen, Panu | 6-2,6-0 |
| Challenger San Benedetto Qual | 2018/07/14 13:20 | Dimitar Kuzmanov v Antonio Massara | 5-7,4-6 |
| ITF Germany F5 | 2018/07/01 10:00 | Bangoura, Sekou v Dimitar Kuzmanov | 1-6,5-7 |
| ITF Germany F5 | 2018/06/30 11:00 | Fabian Marozsan v Dimitar Kuzmanov | 2-6,3-6 |
| ITF Germany F5 | 2018/06/29 11:00 | Hirschmueller, Christian v Dimitar Kuzmanov | 1-6,0-6 |
| ITF Germany F5 | 2018/06/28 16:35 | Netuschil, Marvin v Dimitar Kuzmanov | 3-6,1-6 |
| ITF Germany F5 | 2018/06/26 16:00 | Hoischen, Lars v Dimitar Kuzmanov | 2-6,1-6 |
| Challenger Tampere Qual | 2018/07/22 10:00 | Antoine Bellier v Tristan Lamasine | 3-6,2-6 |
| Challenger Tampere | 2018/07/21 11:45 | Kiiski, Lauri v Tristan Lamasine | 2-6,4-6 |
| Challenger Perugia Qual | 2018/07/08 08:00 | Tristan Lamasine v Andrea Pellegrino | 6-3,1-6,6-7 |
| Challenger Marburg | 2018/07/03 16:15 | Tristan Lamasine v Hugo Dellien | 2-6,2-6 |
| Challenger Marburg Qual | 2018/07/02 10:00 | Tristan Lamasine v Federico Gaio | 2-6,6-3,6-2 |
| Challenger Marburg Qual | 2018/07/01 09:00 | Tristan Lamasine v Netuschil, Marvin | 6-2,3-6,6-0 |
| Challenger Marburg Qual | 2018/06/30 08:00 | Safranek, Vaclav v Tristan Lamasine | 4-6,6-2,6-7 |
| Challenger Blois | 2018/06/22 13:00 | Tristan Lamasine v Felix Auger Aliassime | 4-6,2-6 |