Stadium: Court 1 Round: 45
| Challenger Prague Qual | 2018/07/22 12:00 | Peter Torebko v Alen Avidzba | 0-6,7-5,6-4 |
| Challenger Prague | 2018/07/21 10:05 | Alen Avidzba v Ondrej Styler | 6-1,7-6 |
| Challenger Scheveningen Qual | 2018/07/14 16:25 | Alen Avidzba v Niels Lootsma | 3-6,3-6 |
| Challenger Perugia Qual | 2018/07/09 08:00 | Pol Toledo Bague v Alen Avidzba | 6-2,6-3 |
| Challenger Perugia Qual | 2018/07/08 08:00 | Stefano Baldoni v Alen Avidzba | 1-6,6-7 |
| ITF France F12 Qual | 2018/07/01 08:30 | Alen Avidzba v Alexis Boureau | 4-6,6-7 |
| ITF France F10 | 2018/06/24 13:00 | Fabien Reboul v Alen Avidzba | 6-7,3-6 |
| ITF France F10 | 2018/06/23 13:00 | Alen Avidzba v Antoine Cornut-Chauvinc | 6-7,6-1,6-4 |
| ITF Germany F9 | 2018/07/23 10:00 | Christian Seraphim v Constantin Schmitz | 3-6,4-6 |
| ITF Germany F9 | 2018/07/22 15:30 | Christian Seraphim v Oscar Moraing | 6-4,7-6 |
| ITF Germany F9 | 2018/07/22 08:00 | Daniel Kopeinigg v Christian Seraphim | 4-6,3-6 |
| ITF Austria F3 | 2018/07/14 07:15 | Edward Hubner v Christian Seraphim | 6-2,5-7,7-5 |
| ITF USA F15 | 2018/06/19 14:00 | Petros Chrysochos v Christian Seraphim | 3-6,6-3,6-3 |
| ITF USA F13 | 2018/06/12 16:40 | Alexander Sarkissian v Christian Seraphim | 6-4,6-4 |
| ITF USA F13 Qual | 2018/06/11 16:20 | Christian Seraphim v Felix Corwin | 6-3,6-3 |
| ITF USA F13 Qual | 2018/06/10 14:00 | Christian Seraphim v Kevin Gardner | 6-1,6-1 |